%0 Journal Article
%T Division of land use degree in western China using factor analysis<br>基于因子分析的中国西部土地利用程度分区
%A WANG Xiu-hong
%A HE Shu-jin
%A ZHANG Yi-li
%A LUO Ming
%A <br>王秀红
%A 何书金
%A 张镱锂
%A 罗明
%J 地理研究
%D 2001
%I 
%X Integrated evaluation on land use degree for each county in western China was made by using factor analysis. Based on the integrated score of each evaluated unit (county or county-level city), which reflected the structure of land use, and taken the eco-geographical system of China as a controlling framework, evaluated units were united with the GIS technique; thus, the combined division method of From-top-to-bottom (TB) and From-bottom-to-top (BT) was tested. Western China, which included 12 provinces, autonomous regions and municipality, were divided into three large regions of East monsoon region, Northwest arid region and Tibetan alpine region and further divided into 30 subregions. The various types of indices commonlyused to illuminateland use degreejust reflect the situation of land usefrom a few on the sides. Therefore, the simply using of these indicesto proceed mathematical analyses and to dodivision research would usually deviate from the right direction. Taken the eco-geographical system of China as a controlling framework, the combined division method of TB and BT can be used with hierarchical structure and suggestivedirection. Using the factor analysis, information provided by many indices can be purified and synthesized. The result of data deduction also keeps the structure of samples in high dimension, especiallythe structure related to ordering. Thus, the comparisonand union of the evaluated units have one directly referenced index rather than lots of indices. The application of GIS technique makes the orderingof integrated score closely related to the space attributes among samples, and avoid the irrational union of evaluated units which have almost the same integrated score but have very different land use structure. Also the GIS technique makes the division methods combined between that of TB and that of BT. Many attributes of the divided regions are gradually changing;therefore, the result of division is opposite. County boundary must be consideredfor maneuverability; however, some countieshave large areas, resulting in rather differentecogeographic conditions. With more detailed inquisition information about land use and perfecting study method, the division result would be more reasonable.
%K factor analysis
%K western China
%K land use degree
%K division<br>因子分析
%K 西部地区
%K 土地利用程度
%K 分区
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=C0C75E88BA2EE501C8298896F64A711F&aid=3F792D581EB3E4A5&yid=14E7EF987E4155E6&vid=A04140E723CB732E&iid=B31275AF3241DB2D&sid=507521DBC725630F&eid=0B52E912EAFE3700&journal_id=1000-0585&journal_name=地理研究&referenced_num=24&reference_num=35