Comprehensive estimation method and system for clean greenhouse gas emission of regional agricultural planting system

Abstract

The invention discloses a comprehensive estimation method and system for clean greenhouse gas emission of a regional agricultural planting system, and the method comprises the steps: S1, obtaining the related information of the agricultural planting system in a research region, and carrying out the localization of an agricultural system model; s2, after localization, evaluating CO2 emission ECO2 caused by agricultural management by using a life cycle method, and S3, simulating methane emission ECH4 of an agricultural planting system based on rice by using a process-based mechanism model CH4MOD or DNDC model; s4, calculating the total nitrous oxide emission amount of each agricultural planting system in the research area; s5, simulating the annual variation SOC of the organic carbon on the soil surface layer (0-30 cm) by adopting a process-based RothC or DAYCENT model, and obtaining the carbon sequestration amount of the organic carbon input amount; and S6, integrating the carbon sequestration and the greenhouse gas emission amount to obtain the regional clean greenhouse gas emission amount.

Description

technical field [0001] The invention relates to the technical field of agricultural information, and more particularly to a method and system for comprehensively estimating net greenhouse gas emissions in a regional agricultural planting system. Background technique [0002] In 2020, my country solemnly promises that CO 2 Emissions strive to peak by 2030 and carbon neutrality by 2060. Carbon peaking and carbon neutrality in 2021 will be written into the government work report. As a result, carbon peaking and carbon neutralization have become a major social and technological task. [0003] Agricultural production consumes a lot of chemical fertilizers, pesticides and water resources, and is an important source of greenhouse gas (GHG) emissions. Agricultural GHG emissions account for about 10-12% of total global GHG emissions. At the same time, agriculture plays an important role in carbon sequestration. Therefore, strengthening carbon sequestration and emission reduction...

AI Technical Summary

Problems solved by technology

Aiming at, the assessment of greenhouse gas emissions mainly adopts the emission factor method, which is too simplified and has great uncertainty

Moreover, the assessment of carbon sequestration and greenhouse gas emissions in the agricultural production system is usually assessed separately, and the two are not combined, making it difficult to comprehensively and objectively assess the carbon emissions of the agricultural production system

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