CN116663238A - Method for predicting carbon sequestration potential of ecosystem - Google Patents
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- CN116663238A CN116663238A CN202310445770.6A CN202310445770A CN116663238A CN 116663238 A CN116663238 A CN 116663238A CN 202310445770 A CN202310445770 A CN 202310445770A CN 116663238 A CN116663238 A CN 116663238A
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- 239000002689 soil Substances 0.000 claims abstract description 180
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Abstract
A method for predicting carbon sequestration potential of an ecosystem, comprising the following steps: the method comprises the following steps: s1, estimating the organic carbon density of soil; s2, estimating organic carbon reserves of soil; s3, predicting carbon sequestration potential of soil; s4, estimating carbon reserves of plants in the soil ecosystem: s5, estimating the average carbon density of the soil ecosystem plants; s6, predicting the carbon fixation potential of the plant in the soil ecosystem. According to the method for predicting the carbon sequestration potential of the ecosystem, disclosed by the invention, soil and plants are the two most important carriers of the soil ecosystem, the carbon sequestration potential of the soil is predicted by combining the estimated value and the measured value of the organic carbon reserves of the soil, the carbon sequestration potential of the plant of the soil ecosystem is predicted by combining the model calculation method, and scientific basis is provided for developing and improving the soil fertility, increasing the carbon sink of the plant of the soil ecosystem and enhancing the sustainable utilization of the soil.
Description
Technical Field
The invention belongs to the technical field of biological carbon fixation, and particularly relates to a method for predicting carbon fixation potential of an ecological system.
Background
How to achieve the aim of reducing emission effectively and economically is the focus of attention in various circles. At present, the aim of emission reduction can be achieved mainly by the following two methods: (1) The emission of greenhouse gases to the atmosphere is directly reduced by means of reducing energy consumption, improving energy efficiency and the like; (2) Absorbing and fixing CO in the atmosphere by utilizing biological carbon fixation measures 2 For the offset discharge, this method does not directly affect the increase of economy, but also has great benefits for environmental ecological protection.
Therefore, the biological carbon fixation and emission reduction method becomes a hot problem for research in various countries. For example, international application number US201815875313 discloses a synthesis route of biosolids, chinese application number CN201310751205.9 discloses a method of enhancing biosolids, chinese application number CN202111450944.5 discloses an aquatic organism carbon sequestration capacity enhancing system, and the like.
Therefore, the invention aims to develop a method for predicting the carbon sequestration potential of an ecosystem, and provides scientific basis for developing and improving soil fertility and increasing carbon sink of plants of the soil ecosystem and enhancing sustainable utilization of soil by predicting the carbon sequestration potential of the soil and the carbon sequestration potential of plants of the soil ecosystem.
Disclosure of Invention
The invention aims to: in order to overcome the defects, the invention aims to provide the method for predicting the carbon sequestration potential of the ecological system, which is reasonable in design, wherein soil and plants are the two most important carriers of the soil ecological system, the carbon sequestration potential of the soil is predicted by combining the estimated value and the measured value of the organic carbon reserves of the soil, the carbon sequestration potential of the plants of the soil ecological system is predicted by combining the average carbon density of the plants of the soil ecological system by a model calculation method, and scientific basis is provided for developing and improving the soil fertility and the carbon sink of the plants of the soil ecological system and enhancing the sustainable utilization of the soil, so that the method has great application value.
The invention aims at realizing the following technical scheme:
a method for predicting carbon sequestration potential of an ecosystem, comprising the following steps:
s1, estimating soil organic carbon density: estimating the organic carbon density of the soil by adopting the organic carbon density of the soil in each square area of the soil layer in the soil profile;
s2, estimating the organic carbon reserves of the soil, namely estimating the organic carbon reserves of the soil by adopting a soil type method;
s3, predicting carbon fixation potential of soil: predicting the carbon sequestration potential of the soil by combining the estimated value and the measured value of the organic carbon reserves of the soil;
s4, estimating carbon reserves of plants in the soil ecosystem: estimating plant carbon reserves of a regional soil ecosystem by adopting a plant type method;
s5, estimating the average carbon density of the soil ecosystem plants: estimating the average carbon density of the plant in the soil ecosystem by adopting the carbon reserves of the plant in the soil ecosystem in each square area of the soil area of the region;
s6, predicting carbon fixation potential of the soil ecosystem plants: and analyzing the carbon reserves of the plants in the soil ecosystem and the average carbon density of the plants in the soil ecosystem by adopting a model calculation method, and predicting the carbon fixation potential of the plants in the soil ecosystem.
According to the method for predicting the carbon sequestration potential of the ecosystem, disclosed by the invention, the carbon sequestration potential of the soil is predicted by combining the estimated value and the measured value of the organic carbon reserves of the soil, the carbon sequestration potential of the plant of the soil ecosystem is predicted by combining the average carbon density of the plant of the soil ecosystem by a model calculation method, and scientific basis can be provided for developing and improving the soil fertility, increasing the carbon sink of the plant of the soil ecosystem and enhancing the sustainable utilization of the soil.
Further, in the method for predicting carbon sequestration potential of an ecosystem, in the step S1, a calculation formula is as follows: soil organic carbon density=bemmelen conversion coefficient×soil volume weight×soil layer thickness×organic matter content×0.1.
The soil organic carbon density refers to the quality of organic carbon in a soil layer with a certain depth in a unit area, and is an important index for representing the quality of soil and measuring the organic carbon reserve of the soil.
Further, in the method for predicting carbon sequestration potential of an ecosystem, in S1, a Bemmelen conversion coefficient is 0.58.
Further, in the method for predicting carbon sequestration potential of an ecosystem, in S2, the calculation formula is as follows: wherein n is soil subclass.
The organic carbon reserves are important indexes for calculating the carbon sequestration potential of the soil, and provide parameters for the subsequent carbon sequestration potential of the soil.
Further, in the method for predicting carbon sequestration potential of an ecosystem, in S3, the calculation formula is as follows: soil carbon sequestration potential = soil saturated carbon sequestration amount-soil organic carbon reserves.
The saturation value method is adopted to predict the carbon fixation potential of the soil, and the saturation point area expansion and organic carbon reserve method is used for taking the parallax between the organic carbon content level and each measured value content when the organic carbon in the soil type is changed to 0 as the increasing potential of the organic carbon in the soil at the point.
Further, in the method for predicting carbon sequestration potential of an ecosystem, in S4, the calculation formula is as follows: wherein n is the number of plant species.
Soil ecosystems include, in addition to soil, plants, solar energy, and human activities, etc., organic carbon of the soil ecosystem is mainly stored in soil, plants, and plant residue defoliation, and thus soil and plants are the two most important carriers of the soil ecosystem. The carbon fixation potential of the plant in the soil ecosystem can be predicted by combining the carbon reserves of the plant in the soil ecosystem and the average carbon density of the plant in the soil ecosystem.
Further, in the method for predicting carbon sequestration potential of an ecosystem, in S5, the calculation formula is as follows: average carbon density of regional soil ecosystem plant = regional soil ecosystem plant carbon reserves/regional area.
Compared with the prior art, the invention has the following beneficial effects: the method for predicting the carbon sequestration potential of the ecological system is simple, reasonable in design, and the soil and the plants are the two most important carriers of the soil ecological system, so that scientific basis can be provided for developing and improving the soil fertility, increasing the carbon sink of the plant of the soil ecological system and enhancing the sustainable utilization of the soil by predicting the carbon sequestration potential of the soil and the plant of the soil ecological system; predicting the carbon sequestration potential of the soil by a saturation value method combining the estimated value and the measured value of the organic carbon reserves of the soil, wherein the saturation point area expansion and the organic carbon reserves method are to take the parallax between the organic carbon content level and each measured value content when the organic carbon in the soil type is changed to 0 as the increasing potential of the organic carbon of the soil at the point; and analyzing the carbon reserves of the plants in the soil ecosystem and the average carbon density of the plants in the soil ecosystem by a model calculation method, and predicting the carbon fixation potential of the plants in the soil ecosystem.
Detailed Description
In the following, embodiments 1 and 2 will be described clearly and completely, but it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Example 1 provides a method for predicting the carbon sequestration potential of soil.
Example 1
A prediction method of soil carbon sequestration potential comprises the following steps:
(1) Estimating soil organic carbon density: the soil organic carbon density refers to the quality of organic carbon in a soil layer with a certain depth in a unit area, is an important index for representing the soil quality and measuring the organic carbon reserve of the soil, is usually negligible in gravel content larger than 2mm, and is estimated according to the following formula:
soil organic carbon density=bemmelen conversion coefficient×soil volume weight×soil layer thickness×organic matter content×0.1;
wherein the soil organic carbon density (kg/m 2 ) The Bemmelen conversion coefficient is 0.58, the organic matter content (%), the soil volume weight (g/cm) 2 ) Soil layer thickness (cm);
(2) Estimating the organic carbon reserves of the soil: the organic carbon reserves are important indexes for calculating the carbon sequestration potential of the soil, and are estimated according to the following formula:
wherein n is soil subclass;
wherein the organic carbon reserves (g) of the soil,density of organic carbon of the ith soil subclass (g/m) 2 )；
(3) Predicting carbon fixation potential of soil: the saturated value method is adopted to predict the carbon sequestration potential of the soil, the saturated point area expansion and organic carbon reserve method is to predict the carbon sequestration potential of the soil according to the following formula by taking the parallax between the organic carbon content level and each measured value content when the organic carbon in the soil type is changed to 0 as the increasing potential of the organic carbon of the soil at the point:
soil carbon sequestration potential = soil saturated carbon sequestration amount-soil organic carbon reserves;
the saturated carbon fixation amount of the soil depends on the stable value of the carbon reserves under the condition of unchanged climate, topography, matrix and the like.
Example 2 provides a method for predicting the carbon sequestration potential of a plant in a soil ecosystem.
Example 2
A prediction method for carbon sequestration potential of plants in a soil ecosystem comprises the following steps:
(1) Estimating the carbon reserves of plants in the soil ecosystem: the soil ecosystem comprises plants except soil, the plant carbon reserves are a considerable and potential carbon warehouse, and the change of the plant carbon reserves of the soil ecosystem not only directly reflects soil fertility and net primary productivity, but also affects areas and global environment, and the plant carbon reserves of the soil ecosystem are estimated according to the following formula:
wherein n is the number of plant species;
plant carbon reserves (t) of regional soil ecosystem,
(2) Estimating the average carbon density of the soil ecosystem plants: the average carbon density of the soil ecosystem plants was estimated according to the following formula:
average carbon density of regional soil ecosystem plant = regional soil ecosystem plant carbon reserves/regional area;
(3) Predicting carbon fixation potential of plants in soil ecosystem: and (3) analyzing the carbon reserves of the plants in the soil ecosystem and the average carbon density of the plants in the soil ecosystem by adopting a model calculation method, so that the carbon fixation potential of the plants in the soil ecosystem can be predicted.
The carbon sequestration potential of the plant in the soil ecosystem can be predicted by combining the carbon reserves of the plant in the soil ecosystem and the average carbon density of the plant in the soil ecosystem through a model calculation method, and scientific basis can be provided for the development of the improvement of soil fertility, the increase of carbon sink of the plant in the soil ecosystem and the enhancement of the sustainable utilization of the soil.
There are many ways in which the invention may be practiced, and what has been described above is merely a preferred embodiment of the invention. It should be noted that the above examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that modifications may be made without departing from the principles of the invention, and such modifications are intended to be within the scope of the invention.
Claims (7)
1. The method for predicting the carbon sequestration potential of the ecosystem is characterized by comprising the following steps:
s1, estimating soil organic carbon density: estimating the organic carbon density of the soil by adopting the organic carbon density of the soil in each square area of the soil layer in the soil profile;
s2, estimating the organic carbon reserves of the soil, namely estimating the organic carbon reserves of the soil by adopting a soil type method;
s3, predicting carbon fixation potential of soil: predicting the carbon sequestration potential of the soil by combining the estimated value and the measured value of the organic carbon reserves of the soil;
s4, estimating carbon reserves of plants in the soil ecosystem: estimating plant carbon reserves of a regional soil ecosystem by adopting a plant type method;
s5, estimating the average carbon density of the soil ecosystem plants: estimating the average carbon density of the plant in the soil ecosystem by adopting the carbon reserves of the plant in the soil ecosystem in each square area of the soil area of the region;
s6, predicting carbon fixation potential of the soil ecosystem plants: and analyzing the carbon reserves of the plants in the soil ecosystem and the average carbon density of the plants in the soil ecosystem by adopting a model calculation method, and predicting the carbon fixation potential of the plants in the soil ecosystem.
2. The method for predicting carbon sequestration potential of an ecosystem according to claim 1, wherein in S1, the calculation formula is: soil organic carbon density=bemmelen conversion coefficient×soil volume weight×soil layer thickness×organic matter content×0.1.
3. The method for predicting carbon sequestration potential of an ecosystem according to claim 2, wherein the Bemmelen scaling factor in S1 is 0.58.
4. The method for predicting carbon sequestration potential of an ecosystem according to claim 2, whereinIn the step S2, the calculation formula is as follows: soil organic carbon reserves =X i soil subclass organic carbon density, wherein n is soil subclass.
5. The method for predicting carbon sequestration potential of an ecosystem according to claim 4, wherein in S3, the calculation formula is: soil carbon sequestration potential = soil saturated carbon sequestration amount-soil organic carbon reserves.
6. The method for predicting carbon sequestration potential of an ecosystem according to claim 1, wherein in S4, the calculation formula is: regional soil ecosystem plant carbon reserves =Wherein n is the number of plant species.
7. The method for predicting carbon sequestration potential of an ecosystem according to claim 6, wherein in S5, the calculation formula is: average carbon density of regional soil ecosystem plant = regional soil ecosystem plant carbon reserves/regional area.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116992351A (en) * | 2023-09-26 | 2023-11-03 | 云南省林业调查规划院 | Forest carbon sink potential prediction method and device |
| CN117310124A (en) * | 2023-10-07 | 2023-12-29 | 深圳碳中和生物燃气股份有限公司 | Method and related device for measuring soil carbon fixation amount based on biochar carbon negative emission |
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- 2023-04-24 CN CN202310445770.6A patent/CN116663238A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116992351A (en) * | 2023-09-26 | 2023-11-03 | 云南省林业调查规划院 | Forest carbon sink potential prediction method and device |
| CN116992351B (en) * | 2023-09-26 | 2023-11-28 | 云南省林业调查规划院 | Forest carbon sink potential prediction method and device |
| CN117310124A (en) * | 2023-10-07 | 2023-12-29 | 深圳碳中和生物燃气股份有限公司 | Method and related device for measuring soil carbon fixation amount based on biochar carbon negative emission |
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