农牧交错区土地利用重心迁移研究——以河北省沽源县为例  

Migration of land-use barycenters in farming-pastoral areas——a case study of Guyuan County,Hebei Province

作　　者：郭碧云[1] 张正峰[2] 

机构地区：[1]浙江海洋学院海洋科学与技术学院,浙江舟山316004 [2]中国人民大学公共管理学院土地管理系,北京100872

出　　处：《干旱地区农业研究》2014年第4期217-221,261,共6页Agricultural Research in the Arid Areas

基　　金：国家自然科学基金资助项目(51209119);浙江海洋学院科研启动经费资助

摘　　要：基于Landsat TM数据和GIS技术,通过土地利用变化和重心迁移理论对农牧交错区河北省沽源县30多年土地利用的空间演变情况进行分析。结果表明:研究区农业用地和草地占主要地类,1980—2013年土地利用重心有明显迁移;农业用地重心向东北迁移,迁移距离为4 595.79 m;林地重心向东南方迁移,迁移距离为3 820.62m;草地和建设用地重心向西北方迁移,迁移距离分别为5 294.75、1 220.91 m;水域重心迁移距离较小;未利用土地重心向西南方迁移,迁移距离为4 552.13 m。自然因素对沽源县土地利用空间变化起到一定的推动作用,政策推动等人类活动干扰则是主要驱动因素。Based on Landsat TM data and GIS technology,through the information of land-use change and barycenter migration theory,the spatial evolution of land-use structure in the past 30 years in Guyuan County,Hebei Province has been analyzed. The results showed that agricultural land and grassland were the principal types of land-use,and the land-use barycenters experienced a significant migration in the study area from 1980 to 2013.The barycenter of agricultural land has migrated toward northeast with the distance of 4 595. 79 m; the barycenter of woodland has migrated toward southeast with the distance of 3 820. 62 m; the barycenters of grassland and construction land have migrated toward northwest with the distance of 5 294. 75 m and 1 220. 91 m,respectively; the barycenter of water body has migrated little; and the barycenter of unused land has migrated toward southwest with the distance of 4 552. 13 m. Policies and human activities are the main driving factors,while natural factors play a promoting role in the spatial variation of land-use.

关 键 词：土地利用 空间变化 重心迁移 

分 类 号：F301.24[经济管理—产业经济]