西安市近二十年耕地“非农化”时空演变特征及影响因素  

Spatial-temporal evolution characteristics and influencing factors of “nonagriculturalization” of arable land in Xi'an over the past two decades

作　　者：白宇拓 BAI Yutuo(Aerial Photogrammetry and Remote Sensing Group Company Limited(ARSC),Xi’an,Shaanxi 710199,China)

机构地区：[1]中煤航测遥感集团有限公司,陕西西安710199

出　　处：《北京测绘》2025年第4期484-489,共6页Beijing Surveying and Mapping

基　　金：自然资源部矿山地质灾害成灾机理与防控重点实验室开放基金(2022-02)。

摘　　要：耕地“非农化”现象是我国耕地保护与粮食安全面临的巨大挑战,研究耕地“非农化”时空格局特征及其影响因素能够为区域非农化治理、耕地资源保护提供依据。本文以西安市为研究区,利用土地覆盖类型等数据和土地利用转移矩阵展开研究,揭示西安市耕地“非农化”时空演变特征,探究其影响因素。结果表明,西安市2000—2020年以耕地、森林、建设用地为主,面积增加、减少最多的分别是建设用地(737.46 km^(2))、耕地(914.20 km^(2)),建设用地增幅(119.30%)较为显著;20年间耕地“非农化”总面积744.91 km^(2),长安区的非农化面积最大、未央区次之(两者占比37.3%);主要分布在海拔小于450 m、坡度小于6°、与主干道路距离较近的区域。The phenomenon of “non-agriculturalization” of arable land is a significant challenge to farmland protection and food security in China.Studying the spatial-temporal patterns and influencing factors of this process can provide valuable insights for regional non-agriculturalization governance and farmland resource protection.This paper focused on Xi'an,using data such as land cover types and land use transition matrices to explore the spatial-temporal evolution characteristics of arable land “non-agriculturalization” and its influencing factors.The results show that from 2000 to 2020,the main land use types in Xi'an were arable land,forest,and built-up land.The areas with the most significant increases and decreases were built-up land(737.46 km~2) and arable land(914.20 km~2),with built-up land increasing by 119.30%.Over the past two decades,the total area of non-agriculturalized arable land was 744.91 km~2,with the largest non-agriculturalization area found in Chang'an District,followed by Weiyang District(together accounting for 37.3%).The process was mainly distributed in areas with an altitude below 450 meters,a slope of less than 6°,and proximity to major roads.

关 键 词：耕地非农化 时空演变 影响因素 土地利用 西安市 

分 类 号：P273[天文地球—测绘科学与技术]