WO2024066653A1 - Method and system for researching influence of land-use changes caused by biomass liquid fuel on environment - Google Patents

Method and system for researching influence of land-use changes caused by biomass liquid fuel on environment Download PDF

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WO2024066653A1
WO2024066653A1 PCT/CN2023/106551 CN2023106551W WO2024066653A1 WO 2024066653 A1 WO2024066653 A1 WO 2024066653A1 CN 2023106551 W CN2023106551 W CN 2023106551W WO 2024066653 A1 WO2024066653 A1 WO 2024066653A1
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land
land use
data
crop
use changes
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French (fr)
Chinese (zh)
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雷廷宙
李学琴
刘鹏
李艳玲
王志伟
杨树华
孙堂磊
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常州大学
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    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
    • G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
    • G16C20/10—Analysis or design of chemical reactions, syntheses or processes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/02—Agriculture; Fishing; Forestry; Mining
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/26—Government or public services
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
    • G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
    • G16C20/30—Prediction of properties of chemical compounds, compositions or mixtures

Definitions

  • the invention relates to the technical field of biomass liquid fuel, and in particular to a method and system for studying the environmental impact of land use changes of biomass liquid fuel.
  • Biomass liquid fuels have the dual mission of national energy security and carbon emission reduction, especially the research and development of alternative aviation fuels.
  • the European “Clean Sky” program and the US “Green Aviation” program have invested a lot of money in the research and development of alternative aviation fuels.
  • the expansion of demand for biomass fuels has led to changes in land use.
  • higher crop prices have prompted producers to use more land for agricultural production and reallocate land between different agricultural activities.
  • Global land use changes may have a significant impact on carbon emissions, posing challenges to policy implementation and triggering policy discussions.
  • the introduction of policies to promote the development of biomass fuels and the reduction of greenhouse gas emissions generated by biomass fuels have inevitably led to direct land use changes and indirect land use changes, which mainly highlights the impact of indirect land use changes at the bio-liquid fuel feedstock stage.
  • the present invention provides a method and system for studying the environmental impact of land use changes of biomass liquid fuels, which can solve the problem that there is currently a blank in the study of the environmental impact of land use changes of biomass fuels in my country.
  • a method for studying the environmental impact of land use changes of biomass liquid fuels comprising:
  • crop planting area agricultural product output
  • land use change land use change type
  • the life cycle analysis model framework includes:
  • the land demand related to food is obtained
  • the land demand and allocation coefficient are combined with the current land utilization rate and land restrictions to calculate the remaining land amount according to the food production allocation method
  • the land use changes include population growth, dietary composition, exports, self-sufficiency rate, productivity factors, biomass physical and chemical properties and infrastructure information data.
  • the statistical data analysis method includes combining the planting area data of crops in previous years, agricultural product output data, land use change data, land use change type data, food demand data, productivity factor data, production cost data and market price data, and calculating the resource quantity through statistical analysis.
  • the method for calculating agricultural carbon sinks includes: Balance calculation.
  • the calculation method is based on the fact that all carbon fixation by crops comes from absorbing CO2 in the air, synthesizing products through photosynthesis and releasing O2 .
  • the chemical balance formula is as follows: 6CO2 + 12H2O ⁇ C6H12O6 +6H2O+ 6O2 . Based on the above balance formula, the relationship between the absorption of CO2 and the release of O2 by plants through photosynthesis can be inferred, that is, for every 180g of dry matter fixed, 264g of CO2 can be absorbed and 192g of O2 can be released.
  • the agricultural product output includes:
  • the agricultural product output also includes:
  • the energy potential of straw resources is the introduction of the discount coefficient ⁇ i of different types of crop straw in the CR calculation process.
  • the calculation formula is as follows:
  • CR is the amount of straw resources
  • ECR is the energy potential of straw resources
  • Ci is the yield of the i-th crop
  • ri is the grass-to-grain ratio coefficient of the i-th crop
  • ⁇ i is the discount coefficient of the straw resources of the i-th crop.
  • the system for studying the environmental impact of land use changes of biomass liquid fuels is characterized by: including a data acquisition module, a data calculation module, a framework construction module and a statistical analysis module.
  • a data acquisition module wherein the data acquisition module acquires four types of information data, namely, crop planting area, agricultural product output, land use change, and land use change type, based on crop information of each year;
  • a data calculation module which calculates the annual carbon absorption and oxygen production per unit area of agricultural land in each year and the relationship between soil carbon sink and agricultural carbon sink based on the four types of information data;
  • a framework building module wherein the framework building module uses the calculation results to establish a life cycle analysis model framework of indirect land use change
  • a statistical analysis module is used to analyze the impact of indirect land use changes of material fuels on the environment by combining statistical data analysis methods with the life cycle analysis model framework.
  • a computer device comprises a memory and a processor, wherein the memory stores a computer program, and wherein the processor implements the steps of the above method when executing the computer program.
  • a computer-readable storage medium stores a computer program thereon, wherein the computer program implements the steps of the method described above when executed by a processor.
  • the present invention proposes a method and system for studying the environmental impact of land use changes of biomass liquid fuels.
  • the environmental and energy consumption impact data of biomass resources as biomass liquid fuel raw materials on land use changes in the region are mastered, and a life cycle analysis model framework for indirect land use changes is established.
  • the environmental benefit potential of biomass liquid fuel on land use changes is calculated, and the related benefits are qualitatively and quantitatively analyzed.
  • FIG1 is a method diagram of a method and system for studying the environmental impact of land use changes of biomass liquid fuels provided by an embodiment of the present invention
  • FIG2 is a diagram showing the crop planting area in my country in recent years, showing a method and system for studying the environmental impact of land use changes of biomass liquid fuels provided by an embodiment of the present invention
  • FIG3 is a land use situation diagram of a method and system for studying the environmental impact of land use changes of biomass liquid fuels provided by an embodiment of the present invention
  • FIG4 is a diagram showing the yield and conversion rate of main and by-products of a method and system for studying the environmental impact of land use changes of biomass liquid fuels provided by one embodiment of the present invention
  • FIG5 is a diagram showing the yield and conversion rate of main and by-products of a method and system for studying the environmental impact of land use changes of biomass liquid fuels provided by an embodiment of the present invention
  • FIG6 is a diagram showing the environmental impact of land use changes of biomass liquid fuels provided by an embodiment of the present invention. Internal structure diagram of computer equipment for research methods and systems;
  • one embodiment or “embodiment” as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention.
  • the term “in one embodiment” that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.
  • install, connect, connect should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • install, connect, connect should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • the embodiment provides a method and system for studying the environmental impact of land use change of biomass liquid fuel, including:
  • Step 102 based on the crop information of each year, obtain four types of information data, namely, crop planting area, agricultural product output, land use change, and land use change type;
  • land use change includes population growth, diet composition, exports, self-sufficiency rate, productivity factors, biomass physical and chemical properties and infrastructure information data.
  • the agricultural product output includes:
  • the straw resource energy potential is calculated by introducing the discount coefficient ⁇ i of different types of crop straw in the CR calculation process.
  • the calculation formula is as follows:
  • CR is the amount of straw resources
  • ECR is the energy potential of straw resources
  • Ci is the yield of the i-th crop
  • ri is the grass-to-grain ratio coefficient of the i-th crop
  • ⁇ i is the discount coefficient of the straw resources of the i-th crop.
  • Step 104 based on the four types of information data, calculate the annual carbon absorption and oxygen production per unit area of agricultural land in each year, as well as the relationship between soil carbon sink and agricultural carbon sink;
  • the calculation method of agricultural carbon sink includes calculation based on the dry matter photosynthesis balance formula.
  • the calculation method is based on the fact that all crop carbon fixation comes from absorbing CO2 in the air, synthesizing products through photosynthesis and releasing O2 .
  • the chemical balance formula is as follows: 6CO2 + 12H2O ⁇ C6H12O6 + 6H2O + 6O2 ; based on the above balance formula, the relationship between the absorption of CO2 and the release of O2 by plants through photosynthesis can be inferred, that is , for every 180g of dry matter fixed, 264g of CO2 can be absorbed and 192g of O2 can be released.
  • the straw yield is calculated by taking the agricultural product yield and the prefecture (city) as the unit, and the energy amount is calculated using the standard conversion coefficient to obtain the theoretical available amount of biomass resources.
  • Crop straw mainly includes grain crops, oil crops, cotton, hemp and sugar crops. Since straw yield is not included in the statistics of relevant national departments, The output is usually calculated based on the output of crops.
  • forest land absorbs 20-40t of CO2 per hectare according to the China Carbon Sink Network, and is calculated based on an average of 30t.
  • the amount of carbon stored in the soil is calculated based on the measured organic carbon content of the surface soil, with a 20cm thick topsoil and a soil weight of 3,000t per hectare.
  • Step 106 using the calculation results, establishing a life cycle analysis model framework for indirect land use change
  • the life cycle analysis model framework includes obtaining land demand related to food based on input food demand and productivity factors; food demand includes diet and population demand for food, and also includes exported food.
  • the dynamic land use and allocation dynamics factors are calibrated through the model to obtain the allocation coefficient; wherein the model calibration is established through empirical methods.
  • the land demand and allocation coefficient are combined with the current land utilization rate and land restrictions to calculate the remaining land amount according to the food production distribution method; wherein the land restrictions include static land use factors and local protection factors.
  • the economic potential of land use is determined based on the amount of surplus land where the bioester fuel crop is superior to other land uses.
  • biomass ester fuel in order to avoid ILUC caused by land competition between biomass ester fuel and food production, the land availability of biomass ester fuel can be obtained by assuming a "food first" model.
  • food/feed related land demand is considered to be the main driver of land use change, which in turn depends on the development of underlying socio-economic factors, such as: population growth, diet composition, exports, self-sufficiency and productivity factors; biomass physicochemical properties, infrastructure, etc. are considered to be the main distributional drivers of land use change.
  • the distribution coefficients quantifying the relationship between dynamic land use and the assumed distributional drivers were calibrated based on the statistical analysis fitting the spatial data; then, taking the current land use as the starting point, Through dynamic simulation of the allocation of food-related land ownership, the expansion and spatial distribution of agricultural land used for food production in the future and the remaining land after meeting food demand are pointed out. In this way, the technical potential of biomass ester fuel production that avoids ILUC is determined.
  • Step 108 combining statistical data analysis method with the life cycle analysis model framework to analyze the impact of indirect land use change of material fuels on the environment.
  • the statistical data analysis method includes combining the planting area data of crops in previous years, agricultural product output data, land use change data, land use change type data, food demand data, productivity factor data, production cost data and market price data, and calculating the resource quantity through statistical analysis.
  • the system for studying the environmental impact of land use changes of biomass liquid fuels is characterized by: including a data acquisition module, a data calculation module, a framework construction module and a statistical analysis module.
  • a data acquisition module wherein the data acquisition module acquires four types of information data, namely, crop planting area, agricultural product output, land use change, and land use change type, based on crop information of each year;
  • a data calculation module which calculates the annual carbon absorption and oxygen production per unit area of agricultural land in each year and the relationship between soil carbon sink and agricultural carbon sink based on the four types of information data;
  • a framework building module wherein the framework building module uses the calculation results to establish a life cycle analysis model framework of indirect land use change
  • a statistical analysis module is used to analyze the impact of indirect land use changes of material fuels on the environment by combining statistical data analysis methods with the life cycle analysis model framework.
  • the above-mentioned unit modules may be embedded in or independent of the processor in the computer device in the form of hardware, or may be stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above-mentioned modules.
  • a computer device which may be a terminal, and its internal structure diagram may be shown in FIG6 .
  • the computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected via a system bus.
  • the processor of the computer device is used to provide computing and control capabilities.
  • the memory of the computer device includes a non-volatile storage medium and an internal memory.
  • the non-volatile storage medium stores an operating system and a computer program.
  • the internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium.
  • the communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, an operator network, NFC (near field communication) or other technologies.
  • the computer program is executed by the processor, it is implemented in a wireless manner.
  • the display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen
  • the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.
  • a computer readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:
  • crop planting area agricultural product output
  • land use change land use change type
  • 1-4 which is an embodiment of the present invention, provides a method and system for studying the environmental impact of land use changes of biomass liquid fuels.
  • scientific demonstration is carried out through comparative experiments.
  • the cultivated land area decreased by nearly 5.1% from 2000 to 2008, and the forest area increased by 3.2%. Since 2009, the cultivated land area has increased significantly, accounting for 20.9% of the total land use. As of 2019, cultivated land and forest land accounted for 51.3% of the total agricultural land area, of which most cultivated land was used to grow food crops such as corn, rice, and wheat. Due to the limited price of food crops, although the large-scale planting of food crops is not conducive to the increase of farmers' income, it has solved the problem of food security to a certain extent, provided raw materials for renewable energy to solve the shortage of fossil energy and environmental pollution, and is extremely beneficial to ecological environment protection and sustainable development. Its beneficial.
  • the biomass ester fuel-ethyl levulinate is prepared by clean hydrolysis to explore the impact of its production process on the environment.
  • 3000t dry corn straw 372t of ethyl levulinate and other by-products are obtained.
  • the yield and conversion rate of the main and by-products are shown in Figure 7.
  • the calorific value and density of the fuel the calorific value of diesel is 35.53MJ/L, and the calorific value of ethyl levulinate mixed fuel is 35.49MJ/L.
  • the emissions per unit volume of fuel consumed are shown in Table 3.
  • the greenhouse gas emissions of 1g ethyl levulinate during use are 2.28g CO2. Therefore, when 1g corn straw produces 0.124g ethyl levulinate and is used as fuel, the greenhouse gas emissions are 0.28g CO2; it can be seen from Table 5 that my country's corn straw production in 2020 is 703.796 million tons, and the total carbon fixation is 750.715 million tons, so it is calculated that 1g corn straw can fix 1.1g CO2.
  • the greenhouse gas emissions during the collection, transportation and conversion of corn straw the production of ethyl levulinate from corn straw and its use play a good role in carbon fixation. Compared with fossil energy, it not only reduces greenhouse gas emissions, but also achieves efficient resource utilization.
  • the emergence of land use change mechanisms has promoted the production and use of biomass fuels to a certain extent. Therefore, the preparation of ethyl levulinate by clean hydrolysis of biomass is one of the future development directions in the field of liquid fuels.
  • the land use type before the implementation of energy crops determines whether the production and use of biomass fuels reduces carbon emissions. Therefore, under the current planting pattern, the production and use of biomass fuels are expected to achieve carbon balance by ensuring the planting structure of corn, wheat, and rice as the main crops and the planting land type is arable land.
  • the production and use of biomass fuels are expected to achieve carbon balance by ensuring the planting structure of corn, wheat, and rice as the main crops and the planting land type is arable land.
  • due to the lack of DLUC and ILUC coefficients, differences in environmental impacts, and multiple factors when considering the LUC effect it is difficult to accurately conduct a direct study on the indirect land use changes caused by biomass fuels.
  • the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of complete hardware embodiments, complete software embodiments, or embodiments in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.
  • the scheme in the embodiments of the present application can be implemented in various computer languages, for example, object-oriented programming language Java and literal translation scripting language JavaScript, etc.
  • These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
  • These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

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Abstract

The present application discloses a method and system for researching the influence of land-use changes caused by biomass liquid fuel on an environment. The method comprises: according to crop information in each layer, obtaining four types of information data: the planting area of crops, the yield of agricultural products, land-use changes, and land-use change types; according to the four types of information data, calculating the annual carbon absorption amount and oxygen production amount per unit area of agricultural land in each year, and the relationship between a soil carbon sink and an agricultural carbon sink; establishing a life cycle analysis model framework for indirect land-use changes by using the calculation result; analyzing the influence of the indirect land-use changes caused by mass fuel on an environment according to a statistical data analysis method in combination with the life cycle analysis model framework; and finally, establishing a life cycle database and an assessment system for the influence of the land-use changes in a raw material stage of biomass aviation fuel that is suitable for China's actual conditions, thereby providing technical support for sustainable development of biomass aviation fuel.

Description

生物质液体燃料土地利用变化对环境影响研究方法及系统Research method and system for the environmental impact of land use change of biomass liquid fuel 技术领域Technical Field
本发明涉及生物质液体燃料技术领域，尤其涉及生物质液体燃料土地利用变化对环境影响研究方法及系统。The invention relates to the technical field of biomass liquid fuel, and in particular to a method and system for studying the environmental impact of land use changes of biomass liquid fuel.
背景技术Background technique
生物质液体燃料担负着国家能源安全及碳减排的双重使命，尤其航空替代燃料的研发尤其重要；欧洲“清洁天空”计划以及美国“绿色航空”计划投入大量经费研发航空替代燃料。然而，生物质燃料需求的扩大导致了土地使用的变化，特别是，较高的农作物价格促使生产者将更多的土地用于农业生产，并在不同的农业活动之间重新进行了土地分配。全球土地利用的变化可能会对碳排放产生重大影响，给政策实施带来挑战并引发政策讨论。有关促进生物质燃料发展的政策出台与生物质燃料产生的温室气体减排都不可避免地导致了直接土地利用变化和间接土地利用变化，这主要凸显在生物液体燃料原料阶段间接土地使用变化影响。Biomass liquid fuels have the dual mission of national energy security and carbon emission reduction, especially the research and development of alternative aviation fuels. The European "Clean Sky" program and the US "Green Aviation" program have invested a lot of money in the research and development of alternative aviation fuels. However, the expansion of demand for biomass fuels has led to changes in land use. In particular, higher crop prices have prompted producers to use more land for agricultural production and reallocate land between different agricultural activities. Global land use changes may have a significant impact on carbon emissions, posing challenges to policy implementation and triggering policy discussions. The introduction of policies to promote the development of biomass fuels and the reduction of greenhouse gas emissions generated by biomass fuels have inevitably led to direct land use changes and indirect land use changes, which mainly highlights the impact of indirect land use changes at the bio-liquid fuel feedstock stage.
全生命周期分析与评价由于贯穿产品、工艺和活动整个过程成为生物液体燃料应用的重要组成部分。我国在生物质燃料土地利用变化的研究主要包括两个阶段，2002年到2006年之间主要集中在多时空以及区域层面并建立各种土地利用/覆盖变化模型；2007年之后，主要集中在土地利用/覆盖变化模型的生态环境效应研究，并引入了碳排放、气候变化、情景模拟等。与国外相比，我国目前对土地利用变化与生物质燃料、土地利用变化与温室气体排放之间的关系等研究仍为空白，急需填补。Life cycle analysis and evaluation has become an important part of bio-liquid fuel application because it runs through the entire process of products, processes and activities. my country's research on land use change of biomass fuel mainly includes two stages. From 2002 to 2006, it mainly focused on multi-temporal and regional levels and established various land use/cover change models; after 2007, it mainly focused on the study of the ecological and environmental effects of land use/cover change models, and introduced carbon emissions, climate change, scenario simulation, etc. Compared with foreign countries, my country's current research on the relationship between land use change and biomass fuels, land use change and greenhouse gas emissions is still blank and urgently needs to be filled.
发明内容Summary of the invention
本部分的目的在于概述本发明的实施例的一些方面以及简要介绍一些较佳实施例。在本部分以及本申请的说明书摘要和发明名称中可能会做些简化或省略以避免使本部分、说明书摘要和发明名称的目的模糊，而这种简化或省略不能用于限制本发明的范围。The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.
鉴于上述现有存在的问题，提出了本发明。In view of the above existing problems, the present invention is proposed.
因此，本发明提供了生物质液体燃料土地利用变化对环境影响研究方法及系统，能够解决我国生物质燃料的土地利用变化对环境的影响研究目前处于空白的问题。 Therefore, the present invention provides a method and system for studying the environmental impact of land use changes of biomass liquid fuels, which can solve the problem that there is currently a blank in the study of the environmental impact of land use changes of biomass fuels in my country.
为解决上述技术问题，本发明提供如下技术方案，生物质液体燃料土地利用变化对环境影响研究方法，包括：In order to solve the above technical problems, the present invention provides the following technical solutions: a method for studying the environmental impact of land use changes of biomass liquid fuels, comprising:
根据各年农作物信息，获取农作物的种植面积、农产品产量、土地利用变化以及土地利用变化类型四类信息数据；According to the crop information of each year, four types of information data are obtained: crop planting area, agricultural product output, land use change and land use change type;
根据所述四类信息数据，计算出各年份单位面积农用地年吸碳量、制氧量以及土壤碳汇与农业碳汇的关系；Based on the four types of information data, the annual carbon absorption and oxygen production per unit area of agricultural land in each year, as well as the relationship between soil carbon sink and agricultural carbon sink are calculated;
利用计算结果，建立间接土地使用变化的生命周期分析模型框架；Using the calculation results, a life cycle analysis model framework for indirect land use change is established;
结合统计数据分析法与所述生命周期分析模型框架分析出物质燃料间接土地利用变化对环境的影响。The impact of indirect land use change of material fuels on the environment is analyzed by combining statistical data analysis method with the life cycle analysis model framework.
作为本发明所述的生物质液体燃料土地利用变化对环境影响研究方法的一种优选方案，其中：所述生命周期分析模型框架包括，As a preferred solution of the method for studying the environmental impact of land use change of biomass liquid fuels described in the present invention, the life cycle analysis model framework includes:
根据输入的食物需求与生产力因素，得到与粮食相关的土地需求；Based on the input food demand and productivity factors, the land demand related to food is obtained;
动态土地利用与分配动力因素通过模型校准，得到分配系数；Dynamic land use and allocation dynamics factors are calibrated through the model to obtain allocation coefficients;
所述土地需求与分配系数结合目前土地利用率与土地限制，根据粮食生产分配方式求出剩余土地量；The land demand and allocation coefficient are combined with the current land utilization rate and land restrictions to calculate the remaining land amount according to the food production allocation method;
根据输入的生产成本和市场价格，经过经济评估后得到生物酯类燃料作物优于其他土地利用的剩余土地量；The amount of remaining land where bioester fuel crops are preferred over other land uses after economic evaluation based on input production costs and market prices;
根据所述生物酯类燃料作物优于其他土地利用的剩余土地量，求出土地利用的经济潜力。Based on the amount of surplus land where the bioester fuel crop is preferred over other land uses, the economic potential of the land use is derived.
作为本发明所述的生物质液体燃料土地利用变化对环境影响研究方法的一种优选方案，其中：所述土地利用变化包括人口增长、饮食组成、出口、自给率、生产力因素、生物质理化特性与基础设施信息数据。As a preferred solution of the method for studying the environmental impact of land use changes of biomass liquid fuels described in the present invention, the land use changes include population growth, dietary composition, exports, self-sufficiency rate, productivity factors, biomass physical and chemical properties and infrastructure information data.
作为本发明所述的生物质液体燃料土地利用变化对环境影响研究方法的一种优选方案，其中：所述统计数据分析法包括，结合历年农作物的种植面积数据、农产品产量数据、土地利用变化数据、土地利用变化类型数据、食物需求数据、生产力因素数据、生产成本数据以及市场价格数据，经过统计分析计算出资源量。As a preferred solution of the method for studying the environmental impact of land use changes of biomass liquid fuels described in the present invention, the statistical data analysis method includes combining the planting area data of crops in previous years, agricultural product output data, land use change data, land use change type data, food demand data, productivity factor data, production cost data and market price data, and calculating the resource quantity through statistical analysis.
作为本发明所述的生物质液体燃料土地利用变化对环境影响研究方法的一种优选方案，其中：所述农业碳汇的计算方法包括，根据干物质光合作用平 衡式计算，计算方法根据作物固碳全部来自吸收空气中CO2，通过光合作用合成产物并释放O2，化学平衡式如下：6CO2+12H2O→C6H12O6+6H2O+6O2；根据以上平衡式可推算植物体通过光合作用吸收CO2、释放O2之间的关系，即每固定180g干物质，可吸收CO2 264g，释放O2 192g。As a preferred embodiment of the method for studying the environmental impact of land use change of biomass liquid fuels described in the present invention, the method for calculating agricultural carbon sinks includes: Balance calculation. The calculation method is based on the fact that all carbon fixation by crops comes from absorbing CO2 in the air, synthesizing products through photosynthesis and releasing O2 . The chemical balance formula is as follows: 6CO2 + 12H2O → C6H12O6 +6H2O+ 6O2 . Based on the above balance formula, the relationship between the absorption of CO2 and the release of O2 by plants through photosynthesis can be inferred, that is, for every 180g of dry matter fixed, 264g of CO2 can be absorbed and 192g of O2 can be released.
作为本发明所述的生物质液体燃料土地利用变化对环境影响研究方法的一种优选方案，其中：所述农产品产量包括，
As a preferred solution of the method for studying the environmental impact of land use change of biomass liquid fuels described in the present invention, the agricultural product output includes:
其中，CR为秸秆资源量，i为农作物种类，i＝1，2，3，……，n；Ci为第i种农作物产量；ri为第i种农作物草谷比系数。Wherein, CR is the amount of straw resources, i is the type of crop, i=1, 2, 3, ..., n; Ci is the yield of the i-th crop; ri is the straw-to-grain ratio coefficient of the i-th crop.
作为本发明所述的生物质液体燃料土地利用变化对环境影响研究方法的一种优选方案，其中：所述农产品产量还包括，As a preferred solution of the method for studying the environmental impact of land use change of biomass liquid fuels described in the present invention, wherein: the agricultural product output also includes:
秸秆资源能源潜力量是在CR计算过程中引入不同类型农作物秸秆的折标系数ηi，其计算公式如下：
The energy potential of straw resources is the introduction of the discount coefficient ηi of different types of crop straw in the CR calculation process. The calculation formula is as follows:
其中，CR为秸秆资源量，ECR为秸秆资源能源潜力量；i为农作物种类，i＝1，2，3，……，n；Ci为第i种农作物产量；ri为第i种农作物草谷比系数，ηi为i种农作物秸秆资源的折标系数。Wherein, CR is the amount of straw resources, ECR is the energy potential of straw resources; i is the type of crop, i=1, 2, 3, ..., n; Ci is the yield of the i-th crop; ri is the grass-to-grain ratio coefficient of the i-th crop, and ηi is the discount coefficient of the straw resources of the i-th crop.
生物质液体燃料土地利用变化对环境影响研究系统，其特征在于：包括数据获取模块、数据计算模块、框架构建模块以及统计分析模块，The system for studying the environmental impact of land use changes of biomass liquid fuels is characterized by: including a data acquisition module, a data calculation module, a framework construction module and a statistical analysis module.
数据获取模块，所述数据获取模块根据各年农作物信息，获取农作物的种植面积、农产品产量、土地利用变化以及土地利用变化类型四类信息数据；A data acquisition module, wherein the data acquisition module acquires four types of information data, namely, crop planting area, agricultural product output, land use change, and land use change type, based on crop information of each year;
数据计算模块，所述数据计算模块根据所述四类信息数据，计算出各年份单位面积农用地年吸碳量、制氧量以及土壤碳汇与农业碳汇的关系；A data calculation module, which calculates the annual carbon absorption and oxygen production per unit area of agricultural land in each year and the relationship between soil carbon sink and agricultural carbon sink based on the four types of information data;
框架构建模块，所述框架构建模块利用计算结果，建立间接土地使用变化的生命周期分析模型框架；A framework building module, wherein the framework building module uses the calculation results to establish a life cycle analysis model framework of indirect land use change;
统计分析模块，所述统计分析模块结合统计数据分析法与所述生命周期分析模型框架分析出物质燃料间接土地利用变化对环境的影响。 A statistical analysis module is used to analyze the impact of indirect land use changes of material fuels on the environment by combining statistical data analysis methods with the life cycle analysis model framework.
一种计算机设备，包括存储器和处理器，所述存储器存储有计算机程序，其特征在于，所述处理器执行所述计算机程序时实现如上所述的方法的步骤。A computer device comprises a memory and a processor, wherein the memory stores a computer program, and wherein the processor implements the steps of the above method when executing the computer program.
一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如上所述的方法的步骤。A computer-readable storage medium stores a computer program thereon, wherein the computer program implements the steps of the method described above when executed by a processor.
本发明的有益效果：本发明提出生物质液体燃料土地利用变化对环境影响研究方法及系统，通过深入研究生物质原料阶段对土地使用变化的影响，掌握区域内生物质资源作为生物质液体燃料原料对土地使用变化的环境和能耗影响数据，建立间接土地使用变化的生命周期分析模型框架，通过对比生物质原料不合理使用对土体使用变化影响分析，进而计算生物质液体燃料对土地使用变化影响的环境效益潜能，定性和定量分析相关效益。结合生物质原料阶段土地使用变化的多因素指标，进行不确定性分析，研究相关政策、环境变化、资源供应和市场环境等条件作用下对间接土地使用变化的影响，最终建立适合中国国情的生物质基航空燃料原料阶段土地使用变化影响生命周期数据库和评价体系，为生物质航空燃料的可持续发展提供技术支撑。Beneficial effects of the present invention: The present invention proposes a method and system for studying the environmental impact of land use changes of biomass liquid fuels. By deeply studying the impact of biomass raw material stage on land use changes, the environmental and energy consumption impact data of biomass resources as biomass liquid fuel raw materials on land use changes in the region are mastered, and a life cycle analysis model framework for indirect land use changes is established. By comparing the impact of unreasonable use of biomass raw materials on soil use changes, the environmental benefit potential of biomass liquid fuel on land use changes is calculated, and the related benefits are qualitatively and quantitatively analyzed. Combined with the multi-factor indicators of land use changes in the biomass raw material stage, uncertainty analysis is carried out to study the impact of indirect land use changes under the influence of relevant policies, environmental changes, resource supply and market environment, and finally establish a life cycle database and evaluation system for the impact of land use changes in the biomass-based aviation fuel raw material stage suitable for China's national conditions, providing technical support for the sustainable development of biomass aviation fuel.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其它的附图。其中：In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
图1为本发明一个实施例提供的生物质液体燃料土地利用变化对环境影响研究方法及系统的方法思路图；FIG1 is a method diagram of a method and system for studying the environmental impact of land use changes of biomass liquid fuels provided by an embodiment of the present invention;
图2为本发明一个实施例提供的生物质液体燃料土地利用变化对环境影响研究方法及系统的近年来我国农作物种植面积情况图；FIG2 is a diagram showing the crop planting area in my country in recent years, showing a method and system for studying the environmental impact of land use changes of biomass liquid fuels provided by an embodiment of the present invention;
图3为本发明一个实施例提供的生物质液体燃料土地利用变化对环境影响研究方法及系统的土地利用情况图；FIG3 is a land use situation diagram of a method and system for studying the environmental impact of land use changes of biomass liquid fuels provided by an embodiment of the present invention;
图4为本发明一个实施例提供的生物质液体燃料土地利用变化对环境影响研究方法及系统的主副产品的产量及转化率图；FIG4 is a diagram showing the yield and conversion rate of main and by-products of a method and system for studying the environmental impact of land use changes of biomass liquid fuels provided by one embodiment of the present invention;
图5为本发明一个实施例提供的生物质液体燃料土地利用变化对环境影响研究方法及系统的主副产品的产量及转化率图；FIG5 is a diagram showing the yield and conversion rate of main and by-products of a method and system for studying the environmental impact of land use changes of biomass liquid fuels provided by an embodiment of the present invention;
图6为本发明一个实施例提供的生物质液体燃料土地利用变化对环境影响 研究方法及系统的计算机设备的内部结构图；FIG6 is a diagram showing the environmental impact of land use changes of biomass liquid fuels provided by an embodiment of the present invention. Internal structure diagram of computer equipment for research methods and systems;
具体实施方式Detailed ways
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合说明书附图对本发明的具体实施方式做详细的说明，显然所描述的实施例是本发明的一部分实施例，而不是全部实施例。基于本发明中的实施例，本领域普通人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明的保护的范围。In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是本发明还可以采用其他不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似推广，因此本发明不受下面公开的具体实施例的限制。In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
其次，此处所称的“一个实施例”或“实施例”是指可包含于本发明至少一个实现方式中的特定特征、结构或特性。在本说明书中不同地方出现的“在一个实施例中”并非均指同一个实施例，也不是单独的或选择性的与其他实施例互相排斥的实施例。Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.
本发明结合示意图进行详细描述，在详述本发明实施例时，为便于说明，表示器件结构的剖面图会不依一般比例作局部放大，而且所述示意图只是示例，其在此不应限制本发明保护的范围。此外，在实际制作中应包含长度、宽度及深度的三维空间尺寸。The present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.
同时在本发明的描述中，需要说明的是，术语中的“上、下、内和外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一、第二或第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。At the same time, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
本发明中除非另有明确的规定和限定，术语“安装、相连、连接”应做广义理解，例如：可以是固定连接、可拆卸连接或一体式连接；同样可以是机械连接、电连接或直接连接，也可以通过中间媒介间接相连，也可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
实施例1 Example 1
参照图1，为本发明的第一个实施例，该实施例提供了生物质液体燃料土地利用变化对环境影响研究方法及系统，包括：Referring to FIG. 1 , which is a first embodiment of the present invention, the embodiment provides a method and system for studying the environmental impact of land use change of biomass liquid fuel, including:
步骤102，根据各年农作物信息，获取农作物的种植面积、农产品产量、土地利用变化以及土地利用变化类型四类信息数据；Step 102, based on the crop information of each year, obtain four types of information data, namely, crop planting area, agricultural product output, land use change, and land use change type;
其中，土地利用变化包括人口增长、饮食组成、出口、自给率、生产力因素、生物质理化特性与基础设施信息数据。Among them, land use change includes population growth, diet composition, exports, self-sufficiency rate, productivity factors, biomass physical and chemical properties and infrastructure information data.
更进一步的，所述农产品产量包括，
Furthermore, the agricultural product output includes:
其中，CR为秸秆资源量，i为农作物种类，i＝1，2，3，……，n；Ci为第i种农作物产量；ri为第i种农作物草谷比系数。Wherein, CR is the amount of straw resources, i is the type of crop, i=1, 2, 3, ..., n; Ci is the yield of the i-th crop; ri is the straw-to-grain ratio coefficient of the i-th crop.
更进一步的，秸秆资源能源潜力量是在CR计算过程中引入不同类型农作物秸秆的折标系数ηi，其计算公式如下：
Furthermore, the straw resource energy potential is calculated by introducing the discount coefficient ηi of different types of crop straw in the CR calculation process. The calculation formula is as follows:
其中，CR为秸秆资源量，ECR为秸秆资源能源潜力量；i为农作物种类，i＝1，2，3，……，n；Ci为第i种农作物产量；ri为第i种农作物草谷比系数，ηi为i种农作物秸秆资源的折标系数。Wherein, CR is the amount of straw resources, ECR is the energy potential of straw resources; i is the type of crop, i=1, 2, 3, ..., n; Ci is the yield of the i-th crop; ri is the grass-to-grain ratio coefficient of the i-th crop, and ηi is the discount coefficient of the straw resources of the i-th crop.
步骤104，根据所述四类信息数据，计算出各年份单位面积农用地年吸碳量、制氧量以及土壤碳汇与农业碳汇的关系；Step 104, based on the four types of information data, calculate the annual carbon absorption and oxygen production per unit area of agricultural land in each year, as well as the relationship between soil carbon sink and agricultural carbon sink;
其中，农业碳汇的计算方法包括，根据干物质光合作用平衡式计算，计算方法根据作物固碳全部来自吸收空气中CO2，通过光合作用合成产物并释放O2，化学平衡式如下：6CO2+12H2O→C6H12O6+6H2O+6O2；根据以上平衡式可推算植物体通过光合作用吸收CO2、释放O2之间的关系，即每固定180g干物质，可吸收CO2 264g，释放O2 192g。Among them, the calculation method of agricultural carbon sink includes calculation based on the dry matter photosynthesis balance formula. The calculation method is based on the fact that all crop carbon fixation comes from absorbing CO2 in the air, synthesizing products through photosynthesis and releasing O2 . The chemical balance formula is as follows: 6CO2 + 12H2O → C6H12O6 + 6H2O + 6O2 ; based on the above balance formula, the relationship between the absorption of CO2 and the release of O2 by plants through photosynthesis can be inferred, that is , for every 180g of dry matter fixed, 264g of CO2 can be absorbed and 192g of O2 can be released.
具体的，以基本十年中国统计年鉴中的农作物产量数据为基础，以农产品产量及地(市)为单位，通过相关方法计算其秸秆产量，利用折标系数测算其能源量，从而得到生物质资源的理论可获得量。农作物秸秆主要包括粮食作物、油料作物、棉花、麻类和糖料作物等，由于秸秆产量未列入国家有关部门的统 计范围，其产量通常依据农作物的产量计算而得。Specifically, based on the crop yield data in the China Statistical Yearbook of the Basic Ten Years, the straw yield is calculated by taking the agricultural product yield and the prefecture (city) as the unit, and the energy amount is calculated using the standard conversion coefficient to obtain the theoretical available amount of biomass resources. Crop straw mainly includes grain crops, oil crops, cotton, hemp and sugar crops. Since straw yield is not included in the statistics of relevant national departments, The output is usually calculated based on the output of crops.
更进一步的，按照干物质产量计算；林地按照中国碳汇网每公顷吸收CO2在20～40t之间，按平均30t计算。土壤贮存碳量，以表层土20cm厚、每公顷土壤重3000t计，与实测表层土壤有机碳含量计算得到。Furthermore, it is calculated based on dry matter output; forest land absorbs 20-40t of CO2 per hectare according to the China Carbon Sink Network, and is calculated based on an average of 30t. The amount of carbon stored in the soil is calculated based on the measured organic carbon content of the surface soil, with a 20cm thick topsoil and a soil weight of 3,000t per hectare.
步骤106，利用计算结果，建立间接土地使用变化的生命周期分析模型框架；Step 106, using the calculation results, establishing a life cycle analysis model framework for indirect land use change;
其中，所述生命周期分析模型框架包括，根据输入的食物需求与生产力因素，得到与粮食相关的土地需求；食物需求包括饮食与人口对粮食的需求，还包括出口的粮食。Among them, the life cycle analysis model framework includes obtaining land demand related to food based on input food demand and productivity factors; food demand includes diet and population demand for food, and also includes exported food.
更进一步的，动态土地利用与分配动力因素通过模型校准，得到分配系数；其中模型校准是通过经验方法来建立。Furthermore, the dynamic land use and allocation dynamics factors are calibrated through the model to obtain the allocation coefficient; wherein the model calibration is established through empirical methods.
更进一步的，所述土地需求与分配系数结合目前土地利用率与土地限制，根据粮食生产分配方式求出剩余土地量；其中土地限制包括静态土地利用因素与本土保护因素。Furthermore, the land demand and allocation coefficient are combined with the current land utilization rate and land restrictions to calculate the remaining land amount according to the food production distribution method; wherein the land restrictions include static land use factors and local protection factors.
更进一步的，根据输入的生产成本和市场价格，经过经济评估后得到生物酯类燃料作物优于其他土地利用的剩余土地量；Furthermore, the amount of remaining land where bioester fuel crops are preferred over other land uses is obtained after economic evaluation based on input production costs and market prices;
更进一步的，根据所述生物酯类燃料作物优于其他土地利用的剩余土地量，求出土地利用的经济潜力。Furthermore, the economic potential of land use is determined based on the amount of surplus land where the bioester fuel crop is superior to other land uses.
应说明的是，由于生物质酯类燃料发生的ILUC是不确定的，所以使用PEM或GEM进行建模。“弃碳”(C/ha)因子根据植被总碳、25％的土壤碳和30年的现有森林吸收量来量化失去的碳。为了确定土地的可用性以及由生物质酯类燃料生产的技术和经济潜力。It should be noted that since the ILUC of biomass ester fuel is uncertain, PEM or GEM is used for modeling. The "forgotten carbon" (C/ha) factor quantifies the lost carbon based on total vegetation carbon, 25% soil carbon, and 30 years of existing forest uptake. In order to determine the availability of land and the technical and economic potential of biomass ester fuel production.
应说明的是，为了避免生物质酯类燃料和粮食生产之间的土地竞争导致的ILUC，生物质酯类燃料的土地可用性可以通过假设“粮食优先”的模式获取。It should be noted that in order to avoid ILUC caused by land competition between biomass ester fuel and food production, the land availability of biomass ester fuel can be obtained by assuming a "food first" model.
还应说明的是，粮食/饲料相关土地需求被认为是土地利用变化的主要驱动因素，而土地利用变化又取决于潜在社会经济因素的发展，如：人口增长、饮食组成、出口、自给率和生产力因素；生物质理化特性、基础设施等被认为是土地利用变化的主要分配驱动因素。It should also be noted that food/feed related land demand is considered to be the main driver of land use change, which in turn depends on the development of underlying socio-economic factors, such as: population growth, diet composition, exports, self-sufficiency and productivity factors; biomass physicochemical properties, infrastructure, etc. are considered to be the main distributional drivers of land use change.
更进一步的，根据统计分析拟合空间数据，量化动态土地利用与假设的分配驱动因素之间关系的分配系数经过校准；然后，以当前的土地使用为起点， 通过动态模拟对粮食相关的土地所有权进行分配，指出未来用于粮食生产的农业土地以及在满足粮食需求后剩余的土地扩展和空间分布。由此就确定了避免ILUC的生物质酯类燃料生产的技术潜力。Furthermore, the distribution coefficients quantifying the relationship between dynamic land use and the assumed distributional drivers were calibrated based on the statistical analysis fitting the spatial data; then, taking the current land use as the starting point, Through dynamic simulation of the allocation of food-related land ownership, the expansion and spatial distribution of agricultural land used for food production in the future and the remaining land after meeting food demand are pointed out. In this way, the technical potential of biomass ester fuel production that avoids ILUC is determined.
步骤108，结合统计数据分析法与所述生命周期分析模型框架分析出物质燃料间接土地利用变化对环境的影响。Step 108, combining statistical data analysis method with the life cycle analysis model framework to analyze the impact of indirect land use change of material fuels on the environment.
其中，统计数据分析法包括，结合历年农作物的种植面积数据、农产品产量数据、土地利用变化数据、土地利用变化类型数据、食物需求数据、生产力因素数据、生产成本数据以及市场价格数据，经过统计分析计算出资源量。Among them, the statistical data analysis method includes combining the planting area data of crops in previous years, agricultural product output data, land use change data, land use change type data, food demand data, productivity factor data, production cost data and market price data, and calculating the resource quantity through statistical analysis.
生物质液体燃料土地利用变化对环境影响研究系统，其特征在于：包括数据获取模块、数据计算模块、框架构建模块以及统计分析模块，The system for studying the environmental impact of land use changes of biomass liquid fuels is characterized by: including a data acquisition module, a data calculation module, a framework construction module and a statistical analysis module.
数据获取模块，所述数据获取模块根据各年农作物信息，获取农作物的种植面积、农产品产量、土地利用变化以及土地利用变化类型四类信息数据；A data acquisition module, wherein the data acquisition module acquires four types of information data, namely, crop planting area, agricultural product output, land use change, and land use change type, based on crop information of each year;
数据计算模块，所述数据计算模块根据所述四类信息数据，计算出各年份单位面积农用地年吸碳量、制氧量以及土壤碳汇与农业碳汇的关系；A data calculation module, which calculates the annual carbon absorption and oxygen production per unit area of agricultural land in each year and the relationship between soil carbon sink and agricultural carbon sink based on the four types of information data;
框架构建模块，所述框架构建模块利用计算结果，建立间接土地使用变化的生命周期分析模型框架；A framework building module, wherein the framework building module uses the calculation results to establish a life cycle analysis model framework of indirect land use change;
统计分析模块，所述统计分析模块结合统计数据分析法与所述生命周期分析模型框架分析出物质燃料间接土地利用变化对环境的影响。A statistical analysis module is used to analyze the impact of indirect land use changes of material fuels on the environment by combining statistical data analysis methods with the life cycle analysis model framework.
上述各单元模块可以硬件形式内嵌于或独立于计算机设备中的处理器中，也可以以软件形式存储于计算机设备中的存储器中，以便于处理器调用执行以上各个模块对应的操作。The above-mentioned unit modules may be embedded in or independent of the processor in the computer device in the form of hardware, or may be stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above-mentioned modules.
在一个实施例中，提供了一种计算机设备，该计算机设备可以是终端，其内部结构图可以如图6所示。该计算机设备包括通过系统总线连接的处理器、存储器、通信接口、显示屏和输入装置。其中，该计算机设备的处理器用于提供计算和控制能力。该计算机设备的存储器包括非易失性存储介质、内存储器。该非易失性存储介质存储有操作系统和计算机程序。该内存储器为非易失性存储介质中的操作系统和计算机程序的运行提供环境。该计算机设备的通信接口用于与外部的终端进行有线或无线方式的通信，无线方式可通过WIFI、运营商网络、NFC(近场通信)或其他技术实现。该计算机程序被处理器执行时以实 现生物质液体燃料土地利用变化对环境影响研究方法。该计算机设备的显示屏可以是液晶显示屏或者电子墨水显示屏，该计算机设备的输入装置可以是显示屏上覆盖的触摸层，也可以是计算机设备外壳上设置的按键、轨迹球或触控板，还可以是外接的键盘、触控板或鼠标等。In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be shown in FIG6 . The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected via a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, an operator network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, it is implemented in a wireless manner. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.
在一个实施例中，提供了一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现以下步骤：In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:
根据各年农作物信息，获取农作物的种植面积、农产品产量、土地利用变化以及土地利用变化类型四类信息数据；According to the crop information of each year, four types of information data are obtained: crop planting area, agricultural product output, land use change and land use change type;
根据所述四类信息数据，计算出各年份单位面积农用地年吸碳量、制氧量以及土壤碳汇与农业碳汇的关系；Based on the four types of information data, the annual carbon absorption and oxygen production per unit area of agricultural land in each year, as well as the relationship between soil carbon sink and agricultural carbon sink are calculated;
利用计算结果，建立间接土地使用变化的生命周期分析模型框架；Using the calculation results, a life cycle analysis model framework for indirect land use change is established;
结合统计数据分析法与所述生命周期分析模型框架分析出物质燃料间接土地利用变化对环境的影响。The impact of indirect land use change of material fuels on the environment is analyzed by combining statistical data analysis method with the life cycle analysis model framework.
实施例2Example 2
参照图1-4，为本发明的一个实施例，提供了生物质液体燃料土地利用变化对环境影响研究方法及系统，为了验证本发明的有益效果，通过对比实验进行科学论证。1-4 , which is an embodiment of the present invention, provides a method and system for studying the environmental impact of land use changes of biomass liquid fuels. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through comparative experiments.
从我国主要农作物种植面积变化趋势(图2)来看，1980年以前我国农作物种植面积呈缓慢下降趋势，1980-2000年出现缓慢上升趋势，2000年以后我国农作物面积变化趋势较为明显，呈急剧上升趋势；尤其玉米种植面积出现大幅度的上升且明显高于其它农作物。2005年以前，水稻和小麦的种植面积位居第一、第二；2005年以后玉米种植面积位居第一，水稻、小麦分别位居第二和第三，说明玉米、水稻、小麦始终是我国主要粮食作物和农作物秸秆来源，这也导致了农作物单位面积固碳量的增加。结合2000年以来我国土地利用的变化情况(图3)，2000-2008年耕地面积减少了近5.1％，林地面积增加了3.2％。从2009年开始耕地面积大幅度增加，占总用地的20.9％。截止2019年，耕地与林地面积占总农业用地面积的51.3％，这其中有大部分耕地用于种植玉米、水稻、小麦等粮食作物。由于粮食作物的价格有限，虽然大量种植粮食作物不利于农民收入的增加，但在一定程度上解决了粮食安全问题，为解决化石能源短缺及环境污染的可再生能源提供了原料，对生态环境保护和可持续发展是极 其有利的。From the trend of changes in the planting area of major crops in my country (Figure 2), before 1980, the planting area of crops in my country showed a slow downward trend, and from 1980 to 2000, there was a slow upward trend. After 2000, the trend of changes in the planting area of crops in my country was more obvious, showing a sharp upward trend; in particular, the planting area of corn increased significantly and was significantly higher than other crops. Before 2005, the planting area of rice and wheat ranked first and second; after 2005, the planting area of corn ranked first, and rice and wheat ranked second and third respectively, indicating that corn, rice and wheat have always been the main food crops and sources of crop straw in my country, which has also led to an increase in the carbon sequestration per unit area of crops. Combined with the changes in land use in my country since 2000 (Figure 3), the cultivated land area decreased by nearly 5.1% from 2000 to 2008, and the forest area increased by 3.2%. Since 2009, the cultivated land area has increased significantly, accounting for 20.9% of the total land use. As of 2019, cultivated land and forest land accounted for 51.3% of the total agricultural land area, of which most cultivated land was used to grow food crops such as corn, rice, and wheat. Due to the limited price of food crops, although the large-scale planting of food crops is not conducive to the increase of farmers' income, it has solved the problem of food security to a certain extent, provided raw materials for renewable energy to solve the shortage of fossil energy and environmental pollution, and is extremely beneficial to ecological environment protection and sustainable development. Its beneficial.
以种植面积最大的农作物玉米秸秆为例，通过清洁水解制备生物质酯类燃料-乙酰丙酸乙酯，探究其生产过程对环境的影响。以3000t干玉米秸秆为例，所得的乙酰丙酸乙酯372t及其他副产物，所得主副产品的产量及转化率如图7。根据燃料的热值及密度，柴油热值为35.53MJ/L，乙酰丙酸乙酯混合燃料热值为35.49MJ/L，则消耗单位体积燃料的排放如表3。由此可估算1g乙酰丙酸乙酯在使用过程中温室气体排放量为2.28g CO2。因此，当1g玉米秸秆产生0.124g乙酰丙酸乙酯并用于燃料使用时，温室气体排放量为0.28g CO2；由表5可知我国2020年玉米秸秆产量为70379.6万吨，共固碳量为75071.5万吨，故而计算出1g玉米秸秆能固1.1g CO2。结合玉米秸秆在收集、运输及转化过程中温室气体的排放量，玉米秸秆制乙酰丙酸乙酯及其使用起到了很好的固碳作用，相对于化石能源不仅减少了温室气体的排放，而且也实现了资源的高效利用。同时，土地利用变化机制的出现，在一定程度上促进了生物质燃料的生产和使用。因此，生物质清洁水解制备乙酰丙酸乙酯是未来液体燃料领域发展的方向之一。Taking corn straw, the crop with the largest planting area, as an example, the biomass ester fuel-ethyl levulinate is prepared by clean hydrolysis to explore the impact of its production process on the environment. Taking 3000t dry corn straw as an example, 372t of ethyl levulinate and other by-products are obtained. The yield and conversion rate of the main and by-products are shown in Figure 7. According to the calorific value and density of the fuel, the calorific value of diesel is 35.53MJ/L, and the calorific value of ethyl levulinate mixed fuel is 35.49MJ/L. The emissions per unit volume of fuel consumed are shown in Table 3. It can be estimated that the greenhouse gas emissions of 1g ethyl levulinate during use are 2.28g CO2. Therefore, when 1g corn straw produces 0.124g ethyl levulinate and is used as fuel, the greenhouse gas emissions are 0.28g CO2; it can be seen from Table 5 that my country's corn straw production in 2020 is 703.796 million tons, and the total carbon fixation is 750.715 million tons, so it is calculated that 1g corn straw can fix 1.1g CO2. Considering the greenhouse gas emissions during the collection, transportation and conversion of corn straw, the production of ethyl levulinate from corn straw and its use play a good role in carbon fixation. Compared with fossil energy, it not only reduces greenhouse gas emissions, but also achieves efficient resource utilization. At the same time, the emergence of land use change mechanisms has promoted the production and use of biomass fuels to a certain extent. Therefore, the preparation of ethyl levulinate by clean hydrolysis of biomass is one of the future development directions in the field of liquid fuels.
表1我国不同年份农作物固碳制氧情况
Table 1 Carbon fixation and oxygen production of crops in different years in my country
表2 2020年我国不同农作物固碳制氧情况
Table 2 Carbon fixation and oxygen production of different crops in my country in 2020
表3乙酰丙酸乙酯混合燃料排放量
Table 3 Emissions of ethyl levulinate mixed fuel
因此，能源作物实施前的土地利用类型决定了生物质燃料的生产和使用是否减少了碳排放。所以，在当前种植模式下，保证以玉米、小麦、水稻为主要农作物的种植结构且种植土地类型为耕地，生物质燃料的生产和使用有望实现碳平衡。但本研究中由于缺乏DLUC和ILUC的系数、环境影响的差异以及考虑LUC效应时遇到多因素限制，很难准确的对生物质燃料引起的间接土地利用变化进行直接研究。Therefore, the land use type before the implementation of energy crops determines whether the production and use of biomass fuels reduces carbon emissions. Therefore, under the current planting pattern, the production and use of biomass fuels are expected to achieve carbon balance by ensuring the planting structure of corn, wheat, and rice as the main crops and the planting land type is arable land. However, in this study, due to the lack of DLUC and ILUC coefficients, differences in environmental impacts, and multiple factors when considering the LUC effect, it is difficult to accurately conduct a direct study on the indirect land use changes caused by biomass fuels.
应说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的精神和范围，其均应涵盖在本发明的权利要求范围当中。It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
应说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的精神和范围，其均应涵盖在本发明的权利要求范围当中。It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。本申请实施例中的方案可以采用各种计算机语言实现，例如，面向对象的程序设计语言Java和直译式脚本语言JavaScript等。Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of complete hardware embodiments, complete software embodiments, or embodiments in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code. The scheme in the embodiments of the present application can be implemented in various computer languages, for example, object-oriented programming language Java and literal translation scripting language JavaScript, etc.
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。 The present application is described with reference to the flowchart and/or block diagram of the method, device (system) and computer program product according to the embodiment of the present application. It should be understood that each process and/or box in the flowchart and/or block diagram, and the combination of the process and/or box in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one process or multiple processes in the flowchart and/or one box or multiple boxes in the block diagram.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。 Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (10)

  1. 生物质液体燃料土地利用变化对环境影响研究方法及系统，其特征在于：包括，A method and system for studying the environmental impact of land use changes of biomass liquid fuels, characterized by: including:
    根据各年农作物信息，获取农作物的种植面积、农产品产量、土地利用变化以及土地利用变化类型四类信息数据；According to the crop information of each year, four types of information data are obtained: crop planting area, agricultural product output, land use change and land use change type;
    根据所述四类信息数据，计算出各年份单位面积农用地年吸碳量、制氧量以及土壤碳汇与农业碳汇的关系；Based on the four types of information data, the annual carbon absorption and oxygen production per unit area of agricultural land in each year, as well as the relationship between soil carbon sink and agricultural carbon sink are calculated;
    利用计算结果，建立间接土地使用变化的生命周期分析模型框架；Using the calculation results, a life cycle analysis model framework for indirect land use change is established;
    结合统计数据分析法与所述生命周期分析模型框架分析出物质燃料间接土地利用变化对环境的影响。The impact of indirect land use change of material fuels on the environment is analyzed by combining statistical data analysis method with the life cycle analysis model framework.
  2. 如权利要求1所述的生物质液体燃料土地利用变化对环境影响研究方法，其特征在于：所述生命周期分析模型框架包括，The method for studying the environmental impact of land use changes of biomass liquid fuels according to claim 1 is characterized in that: the life cycle analysis model framework includes:
    根据输入的食物需求与生产力因素，得到与粮食相关的土地需求；Based on the input food demand and productivity factors, the land demand related to food is obtained;
    动态土地利用与分配动力因素通过模型校准，得到分配系数；Dynamic land use and allocation dynamics factors are calibrated through the model to obtain allocation coefficients;
    所述土地需求与分配系数结合目前土地利用率与土地限制，根据粮食生产分配方式求出剩余土地量；The land demand and allocation coefficient are combined with the current land utilization rate and land restrictions to calculate the remaining land amount according to the food production allocation method;
    根据输入的生产成本和市场价格，经过经济评估后得到生物酯类燃料作物优于其他土地利用的剩余土地量；The amount of remaining land where bioester fuel crops are preferred over other land uses after economic evaluation based on input production costs and market prices;
    根据所述生物酯类燃料作物优于其他土地利用的剩余土地量，求出土地利用的经济潜力。Based on the amount of surplus land where the bioester fuel crop is preferred over other land uses, the economic potential of the land use is derived.
  3. 如权利要求2所述的生物质液体燃料土地利用变化对环境影响研究方法，其特征在于：所述土地利用变化包括人口增长、饮食组成、出口、自给率、生产力因素、生物质理化特性与基础设施信息数据。The method for studying the environmental impact of land use changes of biomass liquid fuels as described in claim 2 is characterized in that the land use changes include population growth, diet composition, exports, self-sufficiency rate, productivity factors, biomass physical and chemical properties and infrastructure information data.
  4. 如权利要求3所述的生物质液体燃料土地利用变化对环境影响研究方法，其特征在于：所述统计数据分析法包括，结合历年农作物的种植面积数据、农产品产量数据、土地利用变化数据、土地利用变化类型数据、食物需求数据、生产力因素数据、生产成本数据以及市场价格数据，经过统计分析计算出资源量。The method for studying the environmental impact of land use changes of biomass liquid fuels as described in claim 3 is characterized in that: the statistical data analysis method includes combining the planting area data of crops in previous years, agricultural product output data, land use change data, land use change type data, food demand data, productivity factor data, production cost data and market price data, and calculating the resource quantity through statistical analysis.
  5. 如权利要求4所述的生物质液体燃料土地利用变化对环境影响研究方法，其特征在于：所述农业碳汇的计算方法包括，根据干物质光合作用平衡式计算， 计算方法根据作物固碳全部来自吸收空气中CO2，通过光合作用合成产物并释放O2，化学平衡式如下：6CO2+12H2O→C6H12O6+6H2O+6O2；根据以上平衡式可推算植物体通过光合作用吸收CO2、释放O2之间的关系，即每固定180g干物质，可吸收CO2 264g，释放O2 192g。The method for studying the environmental impact of land use changes of biomass liquid fuels as claimed in claim 4 is characterized in that: the method for calculating agricultural carbon sinks includes calculating according to the dry matter photosynthesis balance formula, The calculation method is based on the fact that all carbon fixation by crops comes from absorbing CO2 from the air, synthesizing products through photosynthesis and releasing O2 . The chemical balance formula is as follows: 6CO2 + 12H2O → C6H12O6 +6H2O+ 6O2 ; Based on the above balance formula, the relationship between the absorption of CO2 and the release of O2 by plants through photosynthesis can be inferred, that is, for every 180g of dry matter fixed, 264g of CO2 can be absorbed and 192g of O2 can be released.
  6. 如权利要求5所述的生物质液体燃料土地利用变化对环境影响研究方法，其特征在于：所述农产品产量包括，
    The method for studying the environmental impact of land use changes of biomass liquid fuels as claimed in claim 5 is characterized in that: the agricultural product output includes:
    其中，CR为秸秆资源量，i为农作物种类，i＝1，2，3，……，n；Ci为第i种农作物产量；ri为第i种农作物草谷比系数。Wherein, CR is the amount of straw resources, i is the type of crop, i=1, 2, 3, ..., n; Ci is the yield of the i-th crop; ri is the straw-to-grain ratio coefficient of the i-th crop.
  7. 如权利要求6所述的生物质液体燃料土地利用变化对环境影响研究方法，其特征在于：所述农产品产量还包括，The method for studying the environmental impact of land use changes of biomass liquid fuels according to claim 6 is characterized in that: the agricultural product output also includes:
    秸秆资源能源潜力量是在CR计算过程中引入不同类型农作物秸秆的折标系数ηi，其计算公式如下：
    The energy potential of straw resources is the introduction of the discount coefficient ηi of different types of crop straw in the CR calculation process. The calculation formula is as follows:
    其中，CR为秸秆资源量，ECR为秸秆资源能源潜力量；i为农作物种类，i＝1，2，3，……，n；Ci为第i种农作物产量；ri为第i种农作物草谷比系数，ηi为i种农作物秸秆资源的折标系数。Wherein, CR is the amount of straw resources, ECR is the energy potential of straw resources; i is the type of crop, i=1, 2, 3, ..., n; Ci is the yield of the i-th crop; ri is the grass-to-grain ratio coefficient of the i-th crop, and ηi is the discount coefficient of the straw resources of the i-th crop.
  8. 生物质液体燃料土地利用变化对环境影响研究系统，其特征在于：包括数据获取模块、数据计算模块、框架构建模块以及统计分析模块，The system for studying the environmental impact of land use changes of biomass liquid fuels is characterized by: including a data acquisition module, a data calculation module, a framework construction module and a statistical analysis module.
    数据获取模块，所述数据获取模块根据各年农作物信息，获取农作物的种植面积、农产品产量、土地利用变化以及土地利用变化类型四类信息数据；A data acquisition module, wherein the data acquisition module acquires four types of information data, namely, crop planting area, agricultural product output, land use change, and land use change type, based on crop information of each year;
    数据计算模块，所述数据计算模块根据所述四类信息数据，计算出各年份单位面积农用地年吸碳量、制氧量以及土壤碳汇与农业碳汇的关系；A data calculation module, which calculates the annual carbon absorption and oxygen production per unit area of agricultural land in each year and the relationship between soil carbon sink and agricultural carbon sink based on the four types of information data;
    框架构建模块，所述框架构建模块利用计算结果，建立间接土地使用变化的生命周期分析模型框架；A framework building module, wherein the framework building module uses the calculation results to establish a life cycle analysis model framework of indirect land use change;
    统计分析模块，所述统计分析模块结合统计数据分析法与所述生命周期分析模型框架分析出物质燃料间接土地利用变化对环境的影响。 A statistical analysis module is used to analyze the impact of indirect land use changes of material fuels on the environment by combining statistical data analysis methods with the life cycle analysis model framework.
  9. 一种计算机设备，包括存储器和处理器，所述存储器存储有计算机程序，其特征在于，所述处理器执行所述计算机程序时实现权利要求1至7中任一项所述的方法的步骤。A computer device comprises a memory and a processor, wherein the memory stores a computer program, and wherein the processor implements the steps of the method according to any one of claims 1 to 7 when executing the computer program.
  10. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现权利要求1至7中任一项所述的方法的步骤。 A computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the steps of the method described in any one of claims 1 to 7 are implemented.
PCT/CN2023/106551 2022-09-27 2023-07-10 Method and system for researching influence of land-use changes caused by biomass liquid fuel on environment WO2024066653A1 (en)

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