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Method for researching soil organic carbon reserve change based on returning farmland to forest and returning grass

A technology of organic carbon and organic matter content, applied in the direction of obtaining spatial resolution, measuring device, color/spectral characteristic measurement, etc., to achieve the effect of improving estimation accuracy

Pending Publication Date: 2021-03-19
北京观微科技有限公司
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Problems solved by technology

[0003] At present, domestic and foreign methods for estimating soil carbon storage mainly include soil type method, GIS estimation method, vegetation type method, model method, life zone method, etc. In the process of soil carbon storage, there are different disadvantages

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  • Method for researching soil organic carbon reserve change based on returning farmland to forest and returning grass
  • Method for researching soil organic carbon reserve change based on returning farmland to forest and returning grass
  • Method for researching soil organic carbon reserve change based on returning farmland to forest and returning grass

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Embodiment Construction

[0050]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] Such as figure 1 As shown, the embodiment of the present invention discloses a research method based on the change of soil organic carbon storage of returning farmland to forest and grass, comprising the following steps:

[0052] S1. Obtain the previous soil type distribution map and land use type distribution map of the study area;

[0053] S2. Calculate the average organic carbon density of each type of soil and the organic carbon storage of the resea...

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Abstract

The invention discloses a method for researching soil organic carbon reserve change based on returning farmland to forest and returning grass. The method comprises the following steps: acquiring a previous soil type distribution diagram and a land utilization type distribution diagram of a research area; calculating the average organic carbon density of each type of soil and the organic carbon reserve of the research area based on the soil type distribution diagram and the soil type attribute recorded by the soil type of the research area; calculating the average organic carbon density of thesoil under different land utilization modes; acquiring a land utilization type distribution diagram of the research area in the latest period; based on the land utilization type distribution diagramsin different periods, the land utilization type change situation of the research area is obtained; and calculating the soil organic carbon reserve of the research area in the latest period based on the change condition of the land utilization type and the soil average organic carbon density in different land utilization modes, and evaluating the soil carbon sequestration effect of the research area after the measures of returning farmland to forests and returning grass are taken. The method can estimate and compare the soil organic carbon reserves after the land utilization changes in different periods, and improves the estimation precision.

Description

technical field [0001] The invention relates to the technical field of soil carbon storage estimation, and more specifically relates to a research method for soil organic carbon storage changes based on returning farmland to forests and grasslands. Background technique [0002] Global warming and its impact on the climate environment is one of the major environmental problems facing mankind. CO 2 As one of the main components of greenhouse gases, it has a direct impact on the rise of global temperature. Therefore, the study of carbon cycle is a key part of understanding and solving this environmental problem. The carbon cycle of terrestrial ecosystems is an important part of the global carbon cycle and plays a dominant role in the carbon source / sink of terrestrial ecosystems, while soil carbon pools are the largest carbon pools in terrestrial ecosystem carbon pools. Soil carbon pools and their changes still affect the atmospheric CO 2 concentration of key ecological proces...

Claims

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Application Information

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IPC IPC(8): G01N21/25G06F17/10
CPCG01N21/25G06F17/10G01N2021/1793G01N2021/178
Inventor 史静汪磊殷继先谢珠利周阳李梦薇
Owner 北京观微科技有限公司
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