风沙过渡区土地利用变化及驱动力分析——以陕北神木县为例  

Analysis of land use change and driving force in wind drift sand region —— a case study over Shenmu country

作　　者：王晓峰[1] 任志远[1] 

机构地区：[1]陕西师范大学旅游与环境学院,陕西西安710062

出　　处：《陕西师范大学学报（自然科学版）》2004年第1期106-110,共5页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(40371003)

摘　　要：以陕北黄土高原长城沿线的神木县作为研究区域,应用土地利用转换矩阵表,分析了近13年来土地利用结构互动变化和动态变化的空间特征.结果表明:神木县的土地利用有其明显的变化,耕地、水域和未利用土地在减少,其中耕地和未利用土地的减少最为明显;本区域其他土地都有所增加,且转变幅度最快是园地和建设用地;农用地内部各地类转换剧烈,农用地和建设用地之间的转换明显,但土地利用沙化现象仍然存在;土地利用变化在空间分布上的土地综合动态度呈东南向西北逐渐降低趋势.神木县的土地利用变化受到多种因素的综合作用,在自然因素的背景下,其环境政策是该县域土地利用变化的主要因素,而人口增长、农业结构的调整,也是土地利用变化重要驱动因素.the Shenmu county, which lies in loess plateau of north Shaanxi province, along the line of Great Wall, is chosen as a study region. Through the analysis of the land use and cover changes matrix, in conjunction with field investigation. The character of land use changes in spacial and temporal dimension during 1988—2001 are analysed. The result show that : In all types of land use, the cultivated land, water field and virgin soil are all decreased, especially the cultivated and the unused land changed greatly ;The rest are all increased. All land of agriculture inside conversion violent, farmland and construction land conversion obvious, The desertification phenomenon is still exist. The relative changes index of the land use is different in different places, the land of south-eastern changed more great than did the land of north-westerns. The policy is the fundamental driving forces of land use/cover ;in addition, human activity is a direct factor that drove the land use/cover changed; Besides the economical factor also affect the land use/cover change in some extent.

关 键 词：风沙过渡区 土地利用变化 驱动力 陕北 转换矩阵表 沙化现象 

分 类 号：F301.24[经济管理—产业经济]