农业资源与环境学报2025，Vol.42Issue(6)：1425-1433,9.DOI:10.13254/j.jare.2025.0495
西南地区撂荒地复耕的粮食增产潜力与碳减排策略
Grain yield increase potential and carbon emission reduction strategies for abandoned cropland recultivation in southwest China
摘要
Abstract
The abandonment of cropland leads to resource waste,recultivation of abandoned cropland stands as an effective measure to enhance grain production capacity.Focusing on southwest China,this study employed remote sensing analysis and scenario modeling to evaluate both grain yield potential and carbon emissions from abandoned cropland recultivation.The results showed that the total area of abandoned land in southwest China was approximately 8.03×105 hm2,mainly distributed in the Yunnan-Guizhou region and southern Gansu.Among these,the areas suitable for planting rice,maize,spring potato,autumn potato,and winter wheat were 3.374×105,3.906×105,1.957×105,4.909×105,and 2.566×105 hm2,respectively.Recultivation could achieve significant production capacity and demonstrated significant production potential.The combined yield potential for spring and autumn potatoes reached 2.89×106 t,accounting for approximately 16.12%of China's total potato production.Production capacities for rice,maize,and wheat were projected at 2.47×106,2.24×106,and 6.73×105 t,respectively.Carbon emission analysis revealed that rice cultivation generated the highest emissions(1.77×109 kg CO2-eq).Implementing mitigation measures could reduce emissions by approximately 8.66×108 kg CO2-eq.Recultivation crop species should be selected based on local conditions,and key carbon-reduction technologies including alternate wetting-drying for rice and slow-release fertilizers should be simultaneously promoted.Establishing supportive policy systems may also be necessary to synergistically achieve grain production increase and carbon reduction targets.关键词
撂荒地复耕/西南地区/粮食增产潜力/碳减排措施Key words
abandoned cropland recultivation/southwest China/grain production potential/carbon emission reduction approach分类
环境科学引用本文复制引用
徐仲雨,尹昌斌,李福夺..西南地区撂荒地复耕的粮食增产潜力与碳减排策略[J].农业资源与环境学报,2025,42(6):1425-1433,9.基金项目
中国农业科学院科技创新工程项目(CAAS-ZDRW202419) （CAAS-ZDRW202419）
中国农业科学院青年创新专项(Y2025QC10) （Y2025QC10）
国家社会科学基金重点项目(24AZD023) （24AZD023）
国家自然科学基金青年项目(72303223) Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences(CAAS-ZDRW202419) （72303223）
Youth Innovation Program of Chinese Academy of Agricultural Sciences(Y2025QC10) （Y2025QC10）
Key Program of National Social Science Foundation of China(24AZD023) （24AZD023）
National Natural Science Foundation of China Young Scientists Fund(72303223) （72303223）
