西南地区撂荒地复耕的粮食增产潜力与碳减排策略
文献类型: 中文期刊
关键词: 撂荒地复耕;;西南地区;;粮食增产潜力;;碳减排措施
期刊名称:农业资源与环境学报
ISSN: 2095-6819
年卷期: 2025 年
页码:
收录情况: 北大核心(2023版) ; ; CSCD(2025-2026年度) ; ; 科技核心(2024版) ; ; 农林核心(2024版)
摘要: 耕地撂荒造成耕地资源浪费,推进撂荒地复耕是提升粮食产能的有效手段之一。本研究以我国西南地区为研究对象,采用遥感解析、情景分析等方法,对撂荒地复耕的粮食增产潜力与碳排放进行评估。研究表明,西南撂荒地总面积约80.34万hm2,主要分布在云南中北部、贵州丘陵山区、甘肃南部等地区,其中适宜种植水稻、玉米、春作马铃薯、秋作马铃薯和冬小麦的面积分别为33.74万、39.06万、19.57万、49.09万hm2和25.66万hm2。复耕后,春作和秋作马铃薯增产潜力合计达288.56万t,约占我国马铃薯年产量的16.12%,水稻、玉米和小麦产能分别约246.86万、224.42万t和67.26万t。碳排放分析显示,复耕地种植水稻的碳排放总量最高,达1.77×109 kg CO2-eq,通过采取减排措施,可实现8.66×108 kg CO2-eq的碳排放量。因此,应因地制宜复耕适宜粮食作物,推广水稻干湿交替、缓释肥替代传统化肥等关键降碳减排技术,同时设计配套政策体系,推动粮食增产与碳减排目标协同实现。
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