中国农学通报2025，Vol.41Issue(29)：46-53,8.
坡耕地碳减排增汇技术及核算方法研究进展与展望
Research Progress of Slope Farmland Carbon Emission Reduction and Sink Increment Technology and Accounting Method
摘要
Abstract
As an important part of cultivated land,slope farmland is the agricultural production fundamental resource in mountain areas.Particularly in the hilly areas of central and western China,slope farmland accounts for a significant proportion of the total cultivated land.Slope farmland has become one of the land use types with the highest intensity of soil and water erosion and the greatest risk of agricultural non-point source pollutant migration due to the limitation of natural conditions and farming practices.This study analyzed the influencing factors of soil organic carbon(SOC)loss in slope farmland,elaborating on both environmental and anthropogenic factors.The main environmental factors include water erosion,wind erosion,frost-thaw erosion and their interactive erosive processes,while the human factors mainly include farming,fertilization,and irrigation.Given that soil and water loss from slope farmland leads to organic carbon loss,from the perspective of carbon sequestration/carbon emission reduction in sloping farmland,this study proposed improvements in agronomic practices such as tillage,fertilization,irrigation,straw mulching and biochar application.These improvements aim to modify slope characteristics,reduce surface runoff,enhance soil quality,and increase crop yields.Finally,the study summarized research on soil carbon pool reserves and carbon sequestration algorithms,fostering consensus on the accounting of SOC sinks in slope farmland and determining the technical methods for accounting organic carbon sinks in slope farmland under the influence of soil and water loss.关键词
坡耕地/水土流失/碳减排/碳汇核算Key words
slope farmland/soil and water loss/carbon emission reduction/carbon sink accounting分类
农业科技引用本文复制引用
吴月颖,王宏,姚莉,张奇,林超文,苏光燕,刘定辉..坡耕地碳减排增汇技术及核算方法研究进展与展望[J].中国农学通报,2025,41(29):46-53,8.基金项目
国家重点研发计划项目"川渝瘠薄坡耕地土壤多源增碳消障产品与技术"(2022YFD1901405) （2022YFD1901405）
"1+9"揭榜挂帅科技攻关"耕地质量提升与环境治理重大技术"(1+9KJGG005) （1+9KJGG005）
"四川稻菜轮作地表径流等调查"(019240295). （019240295）
