CN109284929A - The determination method of surface fuel loading of forest district - Google Patents

The determination method of surface fuel loading of forest district Download PDF

Info

Publication number
CN109284929A
CN109284929A CN201811135829.7A CN201811135829A CN109284929A CN 109284929 A CN109284929 A CN 109284929A CN 201811135829 A CN201811135829 A CN 201811135829A CN 109284929 A CN109284929 A CN 109284929A
Authority
CN
China
Prior art keywords
combustible
sample
forest
surface fuel
moisture content
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811135829.7A
Other languages
Chinese (zh)
Inventor
杨光
孙建
于宏洲
宁吉彬
瓮岳太
邸雪影
舒展
崔立军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northeast Forestry University
Original Assignee
Northeast Forestry University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northeast Forestry University filed Critical Northeast Forestry University
Priority to CN201811135829.7A priority Critical patent/CN109284929A/en
Publication of CN109284929A publication Critical patent/CN109284929A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION 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
    • G06Q10/00Administration; Management
    • G06Q10/06Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063Operations research, analysis or management
    • G06Q10/0639Performance analysis of employees; Performance analysis of enterprise or organisation operations
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION 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
    • G06Q50/00Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10Services
    • G06Q50/26Government or public services
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/005Fire alarms; Alarms responsive to explosion for forest fires, e.g. detecting fires spread over a large or outdoors area

Landscapes

  • Business, Economics & Management (AREA)
  • Human Resources & Organizations (AREA)
  • Engineering & Computer Science (AREA)
  • Development Economics (AREA)
  • Strategic Management (AREA)
  • General Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Tourism & Hospitality (AREA)
  • Physics & Mathematics (AREA)
  • Economics (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Theoretical Computer Science (AREA)
  • General Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Health & Medical Sciences (AREA)
  • Primary Health Care (AREA)
  • Emergency Management (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Game Theory and Decision Science (AREA)
  • Operations Research (AREA)
  • Quality & Reliability (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

The determination method of surface fuel loading of forest district, belongs to forest fire protection technical field.The present invention in order to solve the problem of how to propose a kind of method can precisely determine surface fuel loading of forest district with this realize forest fires detect.The present invention includes Step 1: with choosing in standing forest earth's surface to be measured the sample of predetermined area, muti-piece sample prescription is chosen in sample ground;Step 2: weighing the quality of the surface fuel contained in sample prescription in step 1 and calculating combustible investigation area;Step 3: obtaining the specific value of each stand type surface fuel relative moisture content;Step 4: the stand type combustible relative hydration rate score that step 3 obtains calculates in conjunction with Surface fuel load calculation formula and determines surface fuel loading of forest district according to the quality of the combustible of step 2 acquisition, combustible investigation area.Method of the invention has the advantages that the Surface fuel load of more intuitive, quick and specific determining retaining ring forest zone surface fuel to be measured.

Description

The determination method of surface fuel loading of forest district
Technical field
The present invention relates to a kind of determination methods of surface fuel loading of forest district, belong to forest fire protection technical field.
Background technique
Forest fire is one of major casualty of forest, and forest fire not only seriously destroys the forest reserves, causes huge warp Ji loss, and cause the serious pollution of disaster area and surrounding area environment.The fighting of forest fire manages in the world all It is a problem.With the continuous development of national economic development, the economic activity of people is also extremely active, the factor of forest fire Also it greatly increases, prevention and alarm, the fighting difficulty of forest fire also greatly increase.In addition similar to Yunnan many years great drought in this way Adverse weather phenomenon, the message of annual fatal forest fire can be heard without end, and fire prevention situation is increasingly serious.
Surface fuel load is the major parameter for estimating forest-fire climate three norms, it directly affects the release of combustible energy Size, according to Surface fuel load size, so that it may estimate the potential energy distribution and fire intensity size of different fuel types, respectively The load of the different types of combustible of kind is not fixed and invariable, and Surface fuel load multidate information is for woods in phytobiocoenose Fiery manager and fire ecology researcher have great importance, under certain weather conditions combustible standing crop significantly shadow Forest-fire climate is rung, if related quantity of flammable substances multidate information is it is known that can accurately estimate the forest-fire climate under specified conditions Feature.Therefore the determination of surface fuel loading of forest district detects forest fires particularly important.
Summary of the invention
The purpose of the present invention is to solve how to propose that a kind of method can precisely determine forest zone surface fuel load Amount realizes the problem of forest fires detect with this, and then provides the determination method of surface fuel loading of forest district.
Technical solution of the present invention:
The determination method of surface fuel loading of forest district, comprising the following steps:
Step 1: with choosing in standing forest earth's surface to be measured the sample of predetermined area, muti-piece sample prescription is chosen in sample ground;
Step 2: weighing the quality of the surface fuel contained in sample prescription in step 1 and calculating combustible investigation area;
Step 3: obtaining the specific value of each stand type surface fuel relative moisture content;
Step 4: according to the quality of the combustible of step 2 acquisition, combustible investigation area, the standing forest class that step 3 obtains Type combustible relative hydration rate score calculates in conjunction with Surface fuel load calculation formula and determines surface fuel loading of forest district, Its specific formula for calculation are as follows:
In formula, We is Surface fuel load, and Dh is combustible relative moisture content, and Ws is surface fuel quality, and S is flammable Object investigation area.
Further, in step 1, the concrete mode for choosing the sample ground of predetermined area in standing forest earth's surface to be measured is, according to Survey the slope aspect upgrowth situation of forest in the earth's surface of forest zone, successively choose tailo, half tailo, in Schattenseite and half Schattenseite predetermined area sample Take muti-piece sample prescription as measurement sample prescription respectively as standard for manual sampling, and in the sample ground in ground.
Further, when choosing selection sample prescription in tailo, half tailo, Schattenseite and half Schattenseite sample ground, choosing method is Diagonal along the sample ground chooses muti-piece sample prescription.
Further, in step 3, the specific method for obtaining each stand type surface fuel relative moisture content is, first By contain in the sample prescription adopted back it is withered fall combustible sample and carry out weighing record using electronic balance, then contain in by sample prescription The withered combustible sample that falls be placed in the climate box in laboratory, using 90 degrees Celsius dry 24 hours handle, until it is withered fall it is flammable After object drying, the dry mass of combustible is weighed using electronic balance, finally calculates combustible phase using Fuel loads formula To moisture content, specific formula for calculation are as follows:
In formula, Dh is combustible relative moisture content, and Wd is the weight that scale obtains when combustible acquires sample in its natural state G, Wn are the weight g after the drying of combustible sample.
The invention has the following advantages:
1, Surface fuel load is determined using the determination method of surface fuel loading of forest district of the present invention how much, to woods Important factor combustible consumption when fire occurs, Forest Fire intensity, which has, to be directly affected, by determining the more of Surface fuel load The scale of forest fire can be directly determined less, and according to the analysis of Surface fuel load, it is flammable in reduction standing forest in time to be The important measure prevented and treated, prevent forest fire from occurring;
2, the method for determination Surface fuel load of the invention is set out according to vegetation actual production environment in nature, is used Vegetation measures the surface fuel loadings numerical value in each standing forest area, relatively common measurement method, this hair in different slope respectively The numerical value for the Surface fuel load that bright measurement method obtains is more accurate, carries out forestry analysis convenient for forest-science personnel;
3, method of the invention have it is more intuitive, quick and specific determining retaining ring forest zone surface fuel to be measured can The advantages of combustion things load;
4, the determination method of Surface fuel load of the invention establishes the specific calculated relationship model of Surface fuel load, Influence of the natural factor to Fuel loads is considered, using more accurate operation method, there is preferable prediction Effect can be used for predicting the determination of Surface fuel load numerical value in Different forest stands earth's surface.
Detailed description of the invention
Fig. 1 is the flow diagram present invention determine that surface fuel loading of forest district;
Fig. 2 is larchen Surface fuel load column diagram;
Specific embodiment
Specific embodiment 1: illustrating present embodiment, the forest zone surface fuel of present embodiment in conjunction with Fig. 1 to Fig. 2 Load method for determination of amount, comprising the following steps:
Step 1: with choosing in standing forest earth's surface to be measured the sample of predetermined area, muti-piece sample prescription is chosen in sample ground;
In this step, integer block sample prescription is chosen in the sample ground of standing forest earth's surface predetermined area to be measured, be specifically as follows 10, 20,40 pieces of sample prescriptions are convenient for this hair in order to the mean values for obtaining combustible mass in sample prescription, calculating combustible investigation area Bright experiment measurement;The size for the sample prescription wherein chosen is the subquadrat of 1m × 1m.
Step 2: weighing the quality of the surface fuel contained in sample prescription in step 1 and calculating combustible investigation area;
It in this step, is 1m × 1m according to the quadrat size taken in step 1, it is artificial to collect sample using collection shovel It is withered in side to fall combustible, the quality of combustible is weighed using difference calculation method, wherein difference calculation method is that is, removal installation can Combustion things polybag or the quality for installing object;
Step 3: obtaining the specific value of each stand type surface fuel relative moisture content;
Step 4: according to the quality of the combustible of step 2 acquisition, combustible investigation area, the standing forest class that step 3 obtains Type combustible relative hydration rate score calculates in conjunction with Surface fuel load calculation formula and determines surface fuel loading of forest district, Its specific formula for calculation are as follows:
In formula, We is Surface fuel load, and Dh is combustible relative moisture content, and Ws is surface fuel quality, and S is flammable Object investigation area.
Specific embodiment 2: illustrating present embodiment, the forest zone surface fuel of present embodiment in conjunction with Fig. 1 to Fig. 2 Load method for determination of amount, in step 1, the concrete mode for choosing the sample ground of predetermined area in standing forest earth's surface to be measured is, according to Survey the slope aspect upgrowth situation of forest in the earth's surface of forest zone, successively choose tailo, half tailo, in Schattenseite and half Schattenseite predetermined area sample Take muti-piece sample prescription as measurement sample prescription respectively as standard for manual sampling, and in the sample ground in ground.So set, according to forest zone earth's surface The slope aspect upgrowth situation of interior forest, the load of combustible be it is Protean, using the present invention successively choose tailo, half light It is used as to the sample of predetermined area standard for manual sampling in slope, Schattenseite and half Schattenseite, the corresponding combustible of acquisition that can be more accurate Moisture content dynamic value, and then more accurate judgement and calculate Surface fuel load numerical value in the region.
Specific embodiment 3: illustrating present embodiment, the forest zone surface fuel of present embodiment in conjunction with Fig. 1 to Fig. 2 Load method for determination of amount, when choosing selection sample prescription in tailo, half tailo, Schattenseite and half Schattenseite sample ground, choosing method is Diagonal along the sample ground chooses muti-piece sample prescription.So set, the mode due to selection is chosen using diagonal, have Effect avoids sample prescription chosen area concentration, causes influence of the data of measurement by situation, eventually leads to Surface fuel load The larger problem of numerical accuracy relative deviation, choosing sample prescription using diagonal can ensure in the sample prescription in the slope aspect The moisture content of combustible, combustible weight, combustible area coverage are all more balanced, and it is negative to be more conducive to improving determining combustible The precise degrees of lotus amount.
Specific embodiment 4: illustrating present embodiment, the forest zone surface fuel of present embodiment in conjunction with Fig. 1 to Fig. 2 Load method for determination of amount, in step 3, the specific method for obtaining each stand type surface fuel relative moisture content is, first By contain in the sample prescription adopted back it is withered fall combustible sample and carry out weighing record using electronic balance, then contain in by sample prescription The withered combustible sample that falls be placed in the climate box in laboratory, using 90 degrees Celsius dry 24 hours handle, until it is withered fall it is flammable After object drying, the dry mass of combustible is weighed using electronic balance, finally calculates combustible phase using Fuel loads formula To moisture content, specific formula for calculation are as follows:
In formula, Dh is combustible relative moisture content, and Wd is the weight that scale obtains when combustible acquires sample in its natural state G, Wn are the weight g after the drying of combustible sample.
The present invention uses larch forest as measurement object in ecological environment, determines larch using the method for the present invention The load of combustible, concrete mode are as follows in woods:
Step 1: choosing the sample of predetermined area in larch forest earth's surface, 20 pieces of sample prescriptions, this 20 pieces of sample are chosen in sample ground Side is successively to choose each 5 pieces of sample prescriptions in tailo, half tailo, Schattenseite and half Schattenseite to be used as measurement sample prescription respectively, wherein the sample chosen The size of side is the subquadrat of 1m × 1m;
Step 2: the quality for weighing the surface fuel contained in sample prescription in step 1 obtains such as following table data:
Table 1, combustible mass tables of data in 1m × 1m sample prescription
Above-mentioned combustible sample is placed in the climate box in laboratory, is dried 24 hours and is handled using 90 degrees Celsius, until It is withered fall combustible drying after, the dry mass of combustible is weighed using electronic balance, and obtain quality information and be as follows:
Table 2, combustible dry weight tables of data:
Step 3: according to moisture content calculation formula:
In formula, Dh is combustible relative moisture content, and Wd is the weight that scale obtains when combustible acquires sample in its natural state G, Wn are the weight g after the drying of combustible sample;
Water cut value is obtained to be as follows:
Table 3, Fuel loads statistical form in 1m × 1m sample prescription:
Step 4, according to the quality of the combustible of step 2 acquisition, combustible investigation area, the standing forest class that step 3 obtains Type combustible relative hydration rate score, in conjunction with Surface fuel load calculation formula,
In formula, We is Surface fuel load, and Dh is combustible relative moisture content, and Ws is surface fuel quality, and S is flammable Object investigation area
It calculates and determines surface fuel loading of forest district, and obtain calculated result statistical form:
Table 3, Surface fuel load statistical form:
In the inventive solutions, multiple groups sample prescription data can be collected in two seasons of spring and autumn respectively, and right respectively The sample prescription data of different combustible height are grouped, packet mode using the height of combustible as group basis, utilize with 10cm is named as a benchmark foundation, and to each group, then calculates the mean height of combustible inside each section The average weight that scale obtains when degree, average moisture content, combustible acquire sample in its natural state, and combustible is obtained by calculating Average load amount, analyze combustible height and moisture content, Fresh Yuxincao, the relationship between combustible height, and every flammable Object feature, and then obtain fire prevention fire prevention phase combustible substance characteristic situation of change.
Present invention determine that growing shape using the slope aspect of forest in stand type in the method for surface fuel loading of forest district Condition is successively used as standard for manual sampling to the sample of predetermined area in selection tailo, half tailo, Schattenseite and half Schattenseite, and according in sample prescription The moisture content and then calculating Surface fuel load value of combustible, the determination method of this Surface fuel load is more accurate reliable, Advantageous foundation can not only be provided for China's forest fuel management and Potential fire behavior analysis, be even more the guarantor of the ecological balance It holds and provides guarantee with the security of the lives and property of the people, facilitate the construction in forest zone, create good life cycle for people Border.
This embodiment is just an exemplary description of this patent, does not limit its protection scope, those skilled in the art Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.

Claims (4)

1. the determination method of surface fuel loading of forest district, which comprises the following steps:
Step 1: with choosing in standing forest earth's surface to be measured the sample of predetermined area, muti-piece sample prescription is chosen in sample ground;
Step 2: weighing the quality of the surface fuel contained in sample prescription in step 1 and calculating combustible investigation area;
Step 3: obtaining the specific value of each stand type surface fuel relative moisture content;
Step 4: the stand type that step 3 obtains can according to the quality of the combustible of step 2 acquisition, combustible investigation area Combustion things relative hydration rate score calculates in conjunction with Surface fuel load calculation formula and determines surface fuel loading of forest district, tool Body calculation formula are as follows:
In formula, We is Surface fuel load, and Dh is combustible relative moisture content, and Ws is surface fuel quality, and S is combustible tune Look into area.
2. the determination method of surface fuel loading of forest district according to claim 1, it is characterised in that: in step 1, The concrete mode for choosing the sample ground of predetermined area in standing forest earth's surface to be measured is to be grown according to the slope aspect of forest in forest zone earth's surface to be measured Situation is successively used as standard for manual sampling to the sample of predetermined area in selection tailo, half tailo, Schattenseite and half Schattenseite, and in the sample Inside take muti-piece sample prescription as measurement sample prescription respectively.
3. the determination method of surface fuel loading of forest district according to claim 2, it is characterised in that: choosing sun When choosing sample prescription in slope, half tailo, Schattenseite and half Schattenseite sample ground, choosing method is that the diagonal selection along the sample ground is more Block sample prescription.
4. the determination method of surface fuel loading of forest district according to claim 1, it is characterised in that: in step 3, The specific method for obtaining each stand type surface fuel relative moisture content is, first can by withered fall contained in the sample prescription adopted back Combustion things sample carries out weighing record using electronic balance, and the withered combustible sample that falls then contained in by sample prescription is placed in laboratory Climate box in, using 90 degrees Celsius dry 24 hours handle, until it is withered fall combustible drying after, being weighed using electronic balance can The dry mass of combustion things finally calculates combustible relative moisture content, specific formula for calculation using Fuel loads formula are as follows:
In formula, Dh is combustible relative moisture content, and Wd is the weight g, Wn that scale obtains when combustible acquires sample in its natural state For the weight g after the drying of combustible sample.
CN201811135829.7A 2018-09-27 2018-09-27 The determination method of surface fuel loading of forest district Pending CN109284929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811135829.7A CN109284929A (en) 2018-09-27 2018-09-27 The determination method of surface fuel loading of forest district

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811135829.7A CN109284929A (en) 2018-09-27 2018-09-27 The determination method of surface fuel loading of forest district

Publications (1)

Publication Number Publication Date
CN109284929A true CN109284929A (en) 2019-01-29

Family

ID=65181662

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811135829.7A Pending CN109284929A (en) 2018-09-27 2018-09-27 The determination method of surface fuel loading of forest district

Country Status (1)

Country Link
CN (1) CN109284929A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112268831A (en) * 2020-10-15 2021-01-26 中国林业科学研究院森林生态环境与保护研究所 Method for rapidly measuring surface dead combustible load of artificial forest land
CN113366989A (en) * 2021-05-11 2021-09-10 宁夏农林科学院荒漠化治理研究所(宁夏防沙治沙与水土保持重点实验室) North China larch forest edge updating investigation method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102353761A (en) * 2011-07-13 2012-02-15 东北林业大学 Method for determining surface fuel loading of forest district
CN102634906A (en) * 2012-05-04 2012-08-15 常州天马集团有限公司 High-intensity high-impact-resistant glass fiber cloth and preparation method thereof
CN103886130A (en) * 2014-02-24 2014-06-25 中国林业科学研究院森林生态环境与保护研究所 Forest fire combustible combustion efficiency estimation method
CN104699982A (en) * 2015-03-25 2015-06-10 中测高科(北京)测绘工程技术有限责任公司 Forest fire combustible load capacity estimation method and device
CN106841563A (en) * 2017-03-03 2017-06-13 上海事凡物联网科技有限公司 The measurement apparatus and measuring method of a kind of Fuel loads
CN106950261A (en) * 2017-03-03 2017-07-14 上海事凡物联网科技有限公司 The measuring method and measurement sensor of a kind of Fuel loads
CN107462549A (en) * 2017-08-23 2017-12-12 东北林业大学 A kind of forest dead fuel moisture content on-line measurement device and its measuring method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102353761A (en) * 2011-07-13 2012-02-15 东北林业大学 Method for determining surface fuel loading of forest district
CN102634906A (en) * 2012-05-04 2012-08-15 常州天马集团有限公司 High-intensity high-impact-resistant glass fiber cloth and preparation method thereof
CN103886130A (en) * 2014-02-24 2014-06-25 中国林业科学研究院森林生态环境与保护研究所 Forest fire combustible combustion efficiency estimation method
CN104699982A (en) * 2015-03-25 2015-06-10 中测高科(北京)测绘工程技术有限责任公司 Forest fire combustible load capacity estimation method and device
CN106841563A (en) * 2017-03-03 2017-06-13 上海事凡物联网科技有限公司 The measurement apparatus and measuring method of a kind of Fuel loads
CN106950261A (en) * 2017-03-03 2017-07-14 上海事凡物联网科技有限公司 The measuring method and measurement sensor of a kind of Fuel loads
CN107462549A (en) * 2017-08-23 2017-12-12 东北林业大学 A kind of forest dead fuel moisture content on-line measurement device and its measuring method

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
倪荣新等: "木荷生物防火林带与杉木林可燃物数量比较研究", 《浙江林业科技》 *
周涧青: "大兴安岭南部主要林分地表可燃物负荷量及其影响因子研究", 《西北农林科技大学学报(自然科学版)》 *
李浩: "云南松林可燃物负荷量预测模型研究", 《广东林业科技》 *
王强: "基于岭回归和人工神经网络估测森林可燃物负荷量", 《林业科学》 *
王秋华: "滇中安宁地区火烧迹地光叶石栎灌木林的火行为模拟", 《沈阳农业大学学报》 *
高岚: "《华南灾荒与社会变迁 第八届中国灾害史学术研讨会论文集》", 30 November 2011 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112268831A (en) * 2020-10-15 2021-01-26 中国林业科学研究院森林生态环境与保护研究所 Method for rapidly measuring surface dead combustible load of artificial forest land
CN113366989A (en) * 2021-05-11 2021-09-10 宁夏农林科学院荒漠化治理研究所(宁夏防沙治沙与水土保持重点实验室) North China larch forest edge updating investigation method
CN113366989B (en) * 2021-05-11 2022-05-10 宁夏农林科学院荒漠化治理研究所(宁夏防沙治沙与水土保持重点实验室) Forest edge updating and surveying method for larix huabeiensis

Similar Documents

Publication Publication Date Title
Zeng et al. Individual tree biomass equations and growth models sensitive to climate variables for Larix spp. in China
CN111415065B (en) Mountain disaster ecological damage risk evaluation method based on action process
Liu et al. Where have all the showers gone? Regional declines in light precipitation events in China, 1960–2000
Verstraeten et al. Comparative analysis of the actual evapotranspiration of Flemish forest and cropland, using the soil water balance model WAVE
Tognetti et al. Modeling regional drought-stress indices for beech forests in Mediterranean mountains based on tree-ring data
CN103472009B (en) The monitoring method of wheat plant water percentage under a kind of different plants nitrogen content level
CN109829534B (en) Method, device and system for evaluating community stability of opencast coal mine refuse dump
Keane et al. Comparing three sampling techniques for estimating fine woody down dead biomass
CN101158576A (en) Embedded program type electric theodolites angle gage automatic stereo tree-measuring technology
CN109284929A (en) The determination method of surface fuel loading of forest district
Fiorucci et al. Development and application of a system for dynamic wildfire risk assessment in Italy
CN112213230B (en) Method and system for determining moisture content of surface combustible of Yunnan pine
CN107358363A (en) Coal work incidence of disease Forecasting Methodology based on radial basis function neural network built-up pattern
Eckdahl et al. Climatic variation drives loss and restructuring of carbon and nitrogen in boreal forest wildfire
López-López et al. Non-destructive method for above-ground biomass estimation of Fraxinus uhdei (Wenz.) Lingelsh in an urban forest
CN114354437A (en) Method for measuring water content of branches, leaves and withered and fallen objects of trees
Brady et al. Calibrating vascular plant abundance for detecting future climate changes in Oregon and Washington, USA
Sun et al. Predicting hourly litter moisture content of larch stands in daxinganling region, China using three vapour-exchange methods
CN116754743A (en) Method and system for determining combustible material amount of shrubs
Stafasani et al. Growth-climate response of young Turkey oak (Quercus cerris L.) coppice forest stands along longitudinal gradient in Albania
CN112819734B (en) Method for discriminating wetland plant habitat degradation
CN114971535A (en) Method for predicting comprehensive bearing capacity of forest ecological system resources based on range standardization and entropy weight method
Maulana Allometric Equations for Estimating Aboveground Biomass in Papua Tropical Forest
Andrews et al. Evaluation of a dynamic load transfer function using grassland curing data
CN112183802A (en) Prediction and forecast method for relative growth of 28 arbor species in China

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190129

RJ01 Rejection of invention patent application after publication