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《Journal of Gansu Sciences》 2005-01
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Application of Least Square Error to Land Use Regionalization in Gansu Province

YAO Xiao-jun+{1,2}, MA Jin-hui+1, NIAN Yan-yun+1, MA Qing-yuan+1(1.National Laboratory of Western China's Environmental Systems, Lanzhou University, Lanzhou 730000, China;2.Resource and Environment Science College, Northwest Normal Univeristry, Lanzhou 730070, China)  
Some forerunners have studied the regionalization of land use in Gansu Province which was based on the qualitative analysis. This paper discusses the regionalization of land use in this Province from a new point of view. By means of GIS technology and Least Square Error, we provide a quantitative method to study the problem. According to the classification of land use structure types, we compare the result with the regionalization mentioned in Study on comprehension development and planning of land use in Gansu Province. The research has shown the means of Least Square Error is reasonable and scientific.;At the end, we discuss the result of regionalization. Gansu Province can be divided into five regions of land use: Long-dong Loess Plateau, Long-zhong Loess Hills, Long-nan Mountains, Gan-nan Mountains and He-xi Corridor.
【Fund】: 兰州大学"十五"、"211工程"西部经济与环境数据库建设项目
【CateGory Index】: F224
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