摘要
耕地质量是划定永久基本农田的基础,合理科学地划定永久基本农田对我国粮食安全保障和国家安全稳定具有重大的意义。以徐闻县为研究对象,通过加权指数和法对耕地综合质量评价分级,借助空间自相关和冷热点法分析永久基本农田的空间分布特征,结合空间聚集理论分析划定耕地分区。结果表明:一是,徐闻县耕地综合质量三级和四级占比最大,总和面积超过耕地总面积的68%,集中分布在西连镇、迈陈镇、南山镇和曲界镇;二是,空间上,耕地质量高值聚集区的西连镇、迈陈镇和南山镇的优质耕地应该优先划入永久基本农田实行严格保护,曲界镇和下桥镇的耕地多分布在重点整治区和后备整治区,应加强规划相关的土地综合整治项目,提高耕地整体综合质量,为落实永久基本农田总量目标调整和补划提供后备资源保障。
Rational delineation of permanent prime farmland is crucial for safeguarding national food security.This study developed an integrated framework combining cultivated land quality assessment with spatial analysis to optimize farmland protection strategies in Xuwen County.The weighted index sum method was employed to evaluate land quality,while spatial autocorrelation and hotspot analysis revealed distribution patterns.Key findings include:Grade Ⅲ-Ⅳ lands(>68%total area)predominantly cluster in Xilian,Maichen,Nanshan and Qujie towns;Spatial analysis identified priority protection zones(Xilian/Maichen/Nanshan)and improvement zones(Qujie/Xiaqiao),informing differentiated management strategies.The methodology provides a replicable model for balancing farmland protection with quality enhancement.
作者
李妃勇
黄业建
LI Feiyong;HUANG Yejian(Youhao Farm,Zhanjiang 524022,China;Zhanjiang Agricultural Reclamation Bureau of Guangdong,Zhanjiang 524022,China)
出处
《广东农工商职业技术学院学报》
2025年第3期26-31,共6页
Journal of Guangdong Agriculture Industry Business Polytechnic
关键词
耕地综合评价
空间自相关
耕地分区
永久基本农田
land quality assessment
spatial autocorrelation
farmland zoning
permanent prime farmland
