Soil organic carbon spatial-temporal variation and carbon sequestration potential estimation method and system

An organic carbon and soil technology, which is applied in the field of soil census and can solve the problem of not forming a method for estimating soil carbon sequestration potential.

Pending Publication Date: 2022-03-11
辽宁省农业发展服务中心
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  • Description
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  • Application Information

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Problems solved by technology

Although there are more and more researches on this aspect, there is still no complete, accurate and effective method for estimating soil carbon sequestration potential.

Method used

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  • Soil organic carbon spatial-temporal variation and carbon sequestration potential estimation method and system
  • Soil organic carbon spatial-temporal variation and carbon sequestration potential estimation method and system
  • Soil organic carbon spatial-temporal variation and carbon sequestration potential estimation method and system

Examples

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Effect test

Embodiment 1

[0049] Such as figure 1 As shown, it is a schematic diagram of the overall flow chart of a method for estimating the spatiotemporal variation of soil organic carbon and carbon sequestration potential in Example 1 of the present application. Guided by the theory of geostatistics and soil science as a whole, with the help of geographic information technology, the method of supplementary measurement of field sample points and the combination of existing digital information mainly involves the following methods:

[0050] (1) With the help of the Masselon regionalization variable theory of geostatistics and the theory of semivariance function, the optimal semivariogram function theory model was established, and the organic carbon content of cultivated land in the Lower Liaohe Plain was comparatively studied in the past 30 years (1980-2010) The change characteristics of the spatial distribution and the spatial analysis method and the semivariogram in geostatistics are used to analyz...

Embodiment 2

[0118] Such as Figure 11 Shown is a schematic structural diagram of the soil organic carbon spatiotemporal variation and carbon sequestration potential estimation system in Example 2 of the present application, including a data collection module, a semivariogram function module, an organic carbon change module, an organic carbon balance module and an estimation analysis module.

[0119] Specifically, the data acquisition module is used to collect multiple soil survey data in a predetermined area; the semivariogram function module is used to establish a semivariogram function theoretical model, which is used to reflect the temporal and spatial variation of organic carbon content; organic carbon change The module is used to obtain the organic carbon density and storage change data of each soil census data; the organic carbon balance module is used to establish the organic carbon balance model of the soil census data, and the organic carbon balance model is used to reflect the or...

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Abstract

The invention discloses a soil organic carbon spatial-temporal variation and carbon sequestration potential estimation method and system. The method comprises the steps that soil census data in a predetermined area is collected for several times; establishing a semi-variance function theoretical model, wherein the semi-variance function theoretical model is used for reflecting the spatial-temporal variation of the organic carbon content; acquiring organic carbon density and reserve change data of each time of soil census data; establishing an organic carbon balance model of the soil census data; according to the semi-variance function theoretical model, the organic carbon density and reserve change data and the organic carbon balance model, organic carbon spatial-temporal variation and carbon sequestration potential estimation data of the soil are obtained, and soil organic carbon spatial-temporal variation and carbon sequestration potential estimation is completed. According to the method, the spatial and temporal distribution rule of the soil fertility can be accurately ascertained, the soil carbon sequestration potential is accurately evaluated, and a theoretical basis is laid for soil conservation and sustainable and efficient utilization.

Description

technical field [0001] The application belongs to the technical field of soil census, and specifically relates to a method and system for estimating soil organic carbon spatiotemporal variation and carbon sequestration potential. Background technique [0002] In recent years, soil carbon sequestration potential has become a hot and difficult point in scientific research all over the world. The so-called carbon sequestration potential refers to the saturated capacity of soil carbon or the maximum capacity that the soil can hold carbon, that is to say, under certain climatic conditions (mainly temperature and precipitation), the soil after artificial fertilization (application of organic fertilizer, etc.) The amount of organic carbon that can be achieved by organic carbon and is in a relatively balanced state. [0003] In the IPCC study on global climate change, it is considered that cultivated land is a very important part of the entire terrestrial system, because it can wel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F17/18G06F111/10G06F119/02
CPCG06F30/20G06F17/18G06F2111/10G06F2119/02
Inventor 宋丹马跃王吉磊杨宁董旭李眷
Owner 辽宁省农业发展服务中心
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