云南边境地区耕地“非农化”时空演变及转移路径  

Spatial-Temporal Evolution and Migration Path of Non-agricultural Farmland in Yunnan Border Area

作　　者：刘凤莲 杨博文 陈洪敏 LIU Fenglian;YANG Bowen;CHEN Hongmin(Institute of Land&Resources and Sustainable Development,Yunnan University of Finance and Economics,Kunming 650221,Yunnan,China;Yunnan Key Laboratory of Service Computing,Yunnan University of Finance and Economics,Kunming 650221,Yunnan,China)

机构地区：[1]云南财经大学国土资源与持续发展研究所,云南昆明650221 [2]云南财经大学云南省服务计算重点实验室,云南昆明650221

出　　处：《国土资源科技管理》2025年第2期97-107,共11页Scientific and Technological Management of Land and Resources

基　　金：国家乡村振兴局委托项目(80026091881);云南省教育厅科学研究基金项目(2024J0634);云南省服务计算重点实验室开放课题(YNSC24305);云南财经大学引进人才项目(2022D13)。

摘　　要：耕地“非农化”影响粮食综合生产能力,科学认知耕地“非农化”的动态演变对于保障新时期粮食安全至关重要。本文基于土地利用覆被数据提取了云南边境地区2000—2020年的耕地“非农化”数据,运用地理数据分析工具研究了云南边境地区耕地“非农化”时空演变及转移路径。研究表明:(1)云南边境地区耕地资源主要分布在临沧市、普洱市和文山州,且破碎化严重,在整个研究时段内耕地面积先减少后增加再减少;耕地“非农化”现象主要分布在文山州、临沧市、保山市和德宏州,在整个研究时段内呈现出先涨后落再涨的变化态势。(2)耕地“非农化”的热点区域在2005年之后才开始出现,主要集中在德宏州、保山市、临沧市、西双版纳州和文山州,2000—2020年热点区域呈现出由南向北的转移趋势。(3)耕地“非农化”重心集中在临沧市和保山市,呈三角形分布,整体呈东南—西北—东南方向的转移态势。Non-agricultural farmland has seriously affected the comprehensive grain productivity,and scientific cognition of the dynamic evolution of non-agricultural farmland is very important to ensure food security in the new era.Based on the land use cover data,this paper extracted the non-agricultural farmland data of Yunnan border area from 2000 to 2020,and used the geographic data analysis tool to study the spatiotemporal evolution and migration path of non-agricultural farmland in Yunnan border area.The results showed that:(1)The cultivated land resources in Yunnan border areas were mainly distributed in Lincang city,Puer city and Wenshan prefecture,exhibiting severe fragmentation.The cultivated land quantity showed a situation of decreasing-increasing-decreasing during the whole study period;The non-agricultural farmland was mainly distributed in Wenshan prefecture,Lincang prefecture,Baoshan prefecture and Dehong prefecture,which showed a change trend of rising-falling-rising during the whole study period.(2)The hot spots of farmland non-agricultural conversion appeared after 2005,mainly concentrated in Dehong prefecture,Baoshan city,Lincang city,Xishuangbanna prefecture and Wenshan prefecture.From 2000 to 2020,the hot spots showed a trend of shifting from south to north.(3)The center of non-agricultural farmland was concentrated in Lincang city and Baoshan city,showing a triangular distribution,and the overall migration trend was first to the southeast,then to the northwest,and finally to the southeast.

关 键 词：云南边境地区 粮食安全 耕地“非农化” 耕地可持续发展 

分 类 号：F321.1[经济管理—产业经济]