土壤学报2023，Vol.60Issue(5)：1277-1288,12.DOI:10.11766/trxb202308040311
中国粮食生产的温室气体减排策略以及碳中和实现路径
Mitigation Strategies of Greenhouse Gas Emissions from Crop Production in China and the Pathways to Agricultural Carbon Neutrality
摘要
Abstract
As the largest agricultural country and emitter of greenhouse gas(GHG)in the world,China aims to peak its emissions before 2030 and achieve carbon neutrality before 2060.This target imposes challenging mitigation demands on agricultural systems,which account for～14％of China's national GHG emissions.Crop production is a major contributor to agricultural non-CO2 GHG emissions,primarily due to high methane(CH4)and nitrous oxide(N2O)emissions from intensive use of irrigation water and fertilizers.After the achievement of carbon peak,the contribution of GHG emissions from crop production and the associated mitigation necessity will become increasingly important.It is unclear whether and how crop production can transition to carbon neutrality.This paper reviewed the source and sink effects as well as the temporal and spatial characteristics of GHG emissions from crop production in China,summarized the effective agricultural management practices in mitigating CH4 and N2O emissions and enhancing soil organic carbon sequestration,analyzed the trade-offs between GHG mitigation and carbon sequestration and the associated countermeasures,and put forward prospects and suggestions on future studies regarding this research area in China.关键词
粮食生产/温室气体/碳中和/减排策略Key words
Crop production/Greenhouse gas/Carbon neutrality/Mitigation strategies分类
农业科技引用本文复制引用
夏龙龙,遆超普,朱春梧,张广斌,魏志军,颜晓元..中国粮食生产的温室气体减排策略以及碳中和实现路径[J].土壤学报,2023,60(5):1277-1288,12.基金项目
中国科学院南京土壤研究所自主部署项目(E3250200)资助 Supported by the Self-deployed Research Project of Institute of Soil Science,Chinese Academy of Sciences(No.E3250200) （E3250200）
