%0 Journal Article
%T Land Use/Cover Change and Associated Effects on Eco-environment in Source Region of Yellow River<br>黄河源区土地利用/覆被变化及其生态环境效应
%A SONG Xiang
%A YAN Chang-zhen
%A ZHU Yan-ling
%A DUAN Han-chen
%A <br>宋翔
%A 颜长珍
%A 朱艳玲
%A 段翰晨
%J 中国沙漠
%D 2009
%I 
%X Through interpreting TM image in 1989 and ETM+ image in 2005, the land use/cover database of the source region of the Yellow river had been established, and then the land use/cover dynamic information was derived by overlaying the database of land use/cover. Based on the land use/cover database, an eco-environment quality index model was used to establish the quantitative relation between land use/cover type eco-environment effect. The results show as follows: ①The change of land and its use/cover was slow and moderate, and two contrary changing trends of degradation and improvement in eco-environment coexisted. In the large region scale, the eco-environment quality kept relatively stable in the period of 1989-2005, but changed significantly in the small scale.②Vegetation was the major factor that affected the eco-environment quality in the source region of the Yellow River, followed by grassland factor. ③The eco-environment quality index model can not only be used to study the eco-environment quality in the region scale, but also to find the main driving force of affecting the eco-environment quality.
%K land use/cover change
%K remote sensing
%K eco-environment
%K source region of the Yellow River<br>土地利用/覆被变化
%K 遥感
%K 生态环境效应
%K 黄河源区
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=F62EDFC6E63C5D025C6AE9D0171B7C05&aid=A169D6CEC22CFA4B9D5759927939B8D2&yid=DE12191FBD62783C&vid=771469D9D58C34FF&iid=B31275AF3241DB2D&sid=AE9D5375B9B2D7F2&eid=309A221A57FE8496&journal_id=1000-694X&journal_name=中国沙漠&referenced_num=4&reference_num=16