【作者】 杨君；

【导师】 关欣； 文启凯； 李香云；

【作者基本信息】 新疆农业大学 ， 土壤学， 2003， 硕士

【摘要】 摘要: 按照联合国标准，干旱区土地承载力是7人/102hm2。塔里木河流域源流区是典型的干旱区，而且人口数量递增。因此本文从人口因素着手，探讨该研究区土地利用/土地覆被变化（简称LUCC）情况。根据新疆维吾尔自治区1990年、2000年两期土地利用现状图，运用地理信息系统软件ArcInfo、Arcview以及统计软件，分析1990-2000年土地利用/土地覆被的时空变化情况。运用Excel和SPSS等统计软件，分析源流区统计人口数据和普查人口数据，总结研究区人口数量、人口密度、城乡人口和人口素质变化。并探讨了该研究区LUCC与人口因素的关系。发现10年来研究区各类土地利用形式均有所变化，开垦现象普遍。三源流中，阿克苏河流域耕地面积增加最快、未利用地减少最快、土地利用程度提高得最快。土地利用变化受乡村人口影响较大，主要发生在耕地、草地和未利用地之间。在利用方向上，以综合效益为目标的人地关系协调的土地开发和单纯以经济效益为目标的土地利用之间的矛盾尖锐。人口因素尤其是乡村人口成为该地区LUCC的主要驱动力更多还原

【Abstract】 Study on the Relations Between the LUCC and Demographic Factors in Headstream Zone of Tarim RiverYangjun (Soil Science)Supervised by Prof.Guan Xin，Prof.Wen Qikai and Prof. Li XiangyunAbstract: According to the United Nations criterion, the land supporting capacity in arid zone is 7 person/102hm2.The headstream zone of Tarim River is a typical arid zone,and the population have been increased.So this paper discussed the LUCC situation.Based on the Xinjiang land-use maps of 1990and 2000,and used geographic information system tools such as Arcinfo,Arcview and statistical software,the paper analyzed the temporal & spatial change on land-use/coverage from 1990 to 2000.Used statistical software such as Excel and SPSS,we analyzed statistical population and cencus population of study area and summarized the changing situation of amount,density ,city and rural population ,and cultural feature.It is indicated that all kinds of land-use has changed in study area in past 10 years,and reclamation is widespread.Among 3 headstreams,Aksu River is the quickest one in cultivated area increased,land-use degree increased and no-utilized area decreased.LUCC changed among cultivated land,grass land and no-utilized land,which mainly effected by rural population.On the direction of land use,the contradiction is very acute between land development with the aim of complicated effect and land use only with the aim of economic effect.Demographic factor is the main driving force in study area especially rural population更多还原