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机构地区:[1]同济大学环境科学与工程学院,上海200092 [2]中央民族大学生命与环境科学学院,北京100081
出 处:《中央民族大学学报(自然科学版)》2009年第2期34-40,共7页Journal of Minzu University of China(Natural Sciences Edition)
基 金:国家科技支撑计划课题(No.07BAC03A08);国家民委重点项目(No.06CY05);中央民族大学"985工程"项目(No.CUN985-3-3)
摘 要:本文以黄河源头地区的果洛藏族自治州为研究对象,采用2006年的遥感数据,研究了区域土地利用格局的时空变化特征以及人类活动对土地利用格局演变的影响.分析了沿黄河两岸土地利用廊道的变化.研究结果表明:果洛藏族自治州主要是以莎草、禾草、灌木灌丛等类型为主的资源土地利用,各种草地土地利用连接度较高.本文选用生态适宜性指标进行生态规划,分析了自治州六个县的生态环境适宜性,研究结果对于果洛藏族自治州乃至黄河源头地区的生态环境可持续发展均具有指导作用.By use of the 2004 remote sensing data, we researched on the spatial and temporal variations of landscape pattern and people' s impacts on the changes of landscape pattern at Guoluo Tibetan Autonomous Prefecture in the headwater area of the Yellow Water. The landscape corridor change on the two sides along the Yellow Water was analyzed. The results showed the Guoluo Prefecture was a resources landscape mainly of sedge, grass, shrubs and other types;the landscape connectivity of various kinds of meadows was higher;the corridor effect of the Yellow River was obvious when in 10 kilometers and had a scale restriction. We conducted the ecological assessment according to the ecological adaptability indexes and analyzed the ecological environment adaptability of the six counties of the prefecture. The results provided instructions for the ecological environment sustainable development in Guoluo Tibetan Autonomous Prefecture and even in the headwater area of the Yellow River.
分 类 号:X835[环境科学与工程—环境工程]
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