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首页> 外文会议>2010 International Conference on Multimedia Technology >Study on Land Use Structure and Driving Factor in Typical Watershed of Loess Plateau over past 20 Years
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Study on Land Use Structure and Driving Factor in Typical Watershed of Loess Plateau over past 20 Years

机译：近20年来黄土高原典型流域土地利用结构与驱动力研究。

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This study aims at revealing how land use and land cover change in the typical watershed (Luoyugou Watershed) of Loess Plateau over past 20 years. Based on the remote sensing imagery data and topographic map, a four-stage (1986, 1995, 2001 and 2008) spatial data base was established with ArcGIS software. Demographic data, agricultural economic data and other auxiliary data were collected from national and provincial farms statistical bureaus on land reclamation and cultivation, and some relevant documents and various statistical reports were also collected at the perfection of the typical counties from 1986 to 2008. With GIS spatial analysis tools, the land use and cover change characteristics and the changing trend in Luoyugou watershed since 1986 are traced and analyzed in this paper. According to the basic data of land use, the land use change is quantified by way of computing the Land-use transfer matrix and index models of regional land use change and its driving factors are analyzed. The following results were obtained: ① Luoyugou watershed has an intense land-use change, land use pattern to bear pressures from conflict of the city construction and ecological protection ② The main trend of land use changes is transferring slope land to terrace, and then transferring from terrace to Woodland and construction sites ③ Both natural (climate change, such as temperature, precipitation ) and social ( policies, population increase) driving factors were responsible for the land use change in Luoyugou watershed.
机译：这项研究旨在揭示过去20年中黄土高原典型流域（罗（沟流域）的土地利用和土地覆盖变化。基于遥感影像数据和地形图，利用ArcGIS软件建立了一个四阶段（1986、1995、2001和2008年）的空间数据库。从国家和省级农业统计局收集有关土地开垦和耕种的人口统计数据，农业经济数据和其他辅助数据，并在1986年至2008年的典型县完善时收集了一些相关文件和各种统计报告。本文对1986年以来罗yu沟流域的空间分析工具，土地利用和覆被变化特征以及变化趋势进行了追踪和分析。根据土地利用的基本数据，通过计算土地利用转移矩阵和区域土地利用变化指数模型对土地利用变化进行量化，并分析其驱动因素。得到以下结果：①罗gou沟流域土地利用变化剧烈，土地利用方式承受城市建设与生态保护冲突的压力②土地利用变化的主要趋势是将坡地转为梯田，然后再向土地流转。从梯田到林地和建筑工地③自然（气候变化，例如温度，降水）和社会（政策，人口增加）的驱动因素都是罗Lu沟流域土地利用变化的原因。

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