WANG Xiao-feng,REN Zhi-yuan.Analysis of Land Use Change and Driving Force in Wind Drift Sand Region——A Case Study of Shenmu County[J].Research of Soil and Water Conservation,2006,13(06):201-203,207.
近14年榆林北六县土地利用变化及驱动力分析
- Title:
- Analysis of Land Use Change and Driving Force in Wind Drift Sand Region——A Case Study of Shenmu County
- Keywords:
- wind drift sand region; land use change; driving force
- 分类号:
- F301.24
- 摘要:
- 以陕北黄土高原长城沿线作为研究区，分析了近14年来土地利用变化的特征，结果表明：长城沿线土地利用发生了明显的变化，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；其它土地都有所增加，但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，土地利用沙化现象仍然存在。长城沿线的土地利用变化受到多种因素的综合作，在自然因素的背景下，我国环境政策是该地区土地利用变化的根本原因，人口增长，经济因素也是土地利用变化重要驱动因素。
- Abstract:
- The transitional region of the wind and sand along the Great Wall in the northern Shaanxi Province was chosen as a study area the characteristic of the land use change in the past 14 years is analyzed.The results show that:(1)the cultivated land,water region are always decreasing with some fluctuating,whereas other kinds of area are increasing in some different degree,especially the orchard,grassland and dwelling increased greatly.(2) According to the matrix of land use change,cropland change was the most imported type,which was mainly transformed to orchard,forest,grassland,dwelling land and others,among which forest,grassland and dwelling land have more proportion;unused land mainly transformed to forest,grassland,traffic land etc.(3)LUCC is a complex system,which is affected by many comprehensive factors,including both socio-economic and natural and environment.In Shenmu county,the policy was the fundamental driving force of LUCC;in addition,human activity is a directly factor that drove the LUCC;besides the economical factor also affect LUCC in some extent.
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备注/Memo
收稿日期:2005-10-25。
基金项目:国家自然科学基金项目（40371003）；教育部重点项目（01158）
作者简介:王晓峰（1977- ），男，甘肃庄浪人，博士研究生，研究方向为GIS与土地利用变化.