陕西省土地利用强度时空变化特征分析  

Analysis of the Spatiotemporal Variability and Driving Forces of Land Use Intensity in Shaanxi Province

作　　者：吴冬梅 周艺婷 WU Dongmei;ZHOU Yiting(School of Land Engineering,Chang′an University,Xi′an 710054,China)

机构地区：[1]长安大学土地工程学院,陕西西安710054

出　　处：《河南科技》2025年第4期106-110,共5页Henan Science and Technology

摘　　要：【目的】土地利用强度是衡量人类活动对陆地表层影响程度的指标,分析其时空变化特征可为优化土地资源配置提供参考。【方法】基于1985—2022年土地利用遥感地类数据,运用土地利用强度模型分析时空演变特征。【结果】(1)陕西省所辖延安、汉中、安康、商洛、宝鸡市土地利用强度分别下降了7.78、4.92、7.34、1.93、3.14,西安、渭南、咸阳、铜川、榆林市分别上升了7.62、9.49、4.35、5.45、4.06。(2)不同等级土地利用强度分布整体呈现出“南北低、中部高”的空间格局。从局部看,中部形成“东中高,西部低”的中高强度集聚区,低值区分布在中北部和东南部。【结论】陕西省土地利用强度地域性差异显著且南北部强度水平略低,应统筹安排,因地制宜,促进经济生态系统的协调发展。[Purposes]Land use intensity is a measure of the extent of the impact of human activities on the land surface,and analyses of its spationtemporal changes provides a reference for optimizing land resource allocation.[Methods]Based on the 1985—2022 remote sensing land classification date,the spatial and temporal evolution characteristics were analysed using the land use intensity model.[Find⁃ings]①The land-use intensity in the cities of Yan′an,Hanzhong,Ankang,Shangluo and Baoji under its jurisdiction has declined by 7.78,4.92,7.34,1.93 and 3.14 respectively,while that of Xi′an,Weinan,Xianyang,Tongchuan and Yulin has increased by 7.62,9.49,4.35,5.45 and 4.06 respectively.②The distribution of different levels of land-use intensity shows an overall spatial pattern of"low in the north and south and high in the centre".From a local point of view,the central part of the country has formed an area of high and medium intensity with"high in the east and low in the west",while the low value area is distributed with lower levels in the north and south..[Conclusions]There are significant geographical differences in the intensity of land use in Shaanxi Province,Development strategies should be coordi⁃nated and adapted to local conditions to promote economy-ecosystem synergy.

关 键 词：土地利用强度 时空变化 陕西省 

分 类 号：F301.2[经济管理—产业经济]