摘要
本研究基于某地区2009-2019年国土调查数据,综合运用GIS空间分析、遥感解译与多源数据融合技术,分析了耕地动态变化特征及驱动机制。研究区耕地非农化转移占比4.2%,其中70.83%流向农村住宅用地;农用地内部结构调整占95.8%,主要转化为园地和林地。地形因子显著影响转化类型,82.83%园地转化发生在15°以下缓坡,而88.41%林地转化集中于15°以上陡坡。研究提出“规则约束+技术监管+经济激励”三维保护体系,实施后耕地年均流失率由4.2%降至1.8%。耕地流失是技术革新、政策导向与市场驱动共同作用的结果,需通过空间规划优化、动态监测网络构建和补偿机制创新实现耕地可持续管理。
Based on the land survey data of a certain region from 2009 to 2019, this study comprehensively uses GIS spatial analysis, remote sensing interpretation, and multi-source data fusion technology to analyze the dynamic changes and driving mechanisms of cultivated land. The proportion of non-agricultural transfer of cultivated land in the research area is 4.2%, of which 70.83% flows to rural residential land;The internal structural adjustment of agricultural land accounts for 95.8%, mainly converted into gardens and forests. The terrain factor significantly affects the type of transformation, with 82.83% of garden transformation occurring on gentle slopes below 15°, while 88.41% of forest transformation is concentrated on steep slopes above 15°. The study proposes a three-dimensional protection system of "rule constraints+technical supervision+economic incentives", which reduces the average annual loss rate of arable land from 4.2% to 1.8% after implementation. The loss of arable land is the result of the combined effects of technological innovation, policy guidance, and market drive. It is necessary to achieve sustainable management of arable land through spatial planning optimization, dynamic monitoring network construction, and compensation mechanism innovation.
作者
梁勇
LIANG Yong(Guangxi Zhuang Autonomous Region Institute of Geographic Information Surveying and Mapping,Liuzhou 545000,China)
出处
《价值工程》
2026年第7期45-47,共3页
Value Engineering
关键词
耕地动态变化
耕地保护
国土变更调查
dynamic changes in cultivated land
farmland protection
land change investigation
