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作 者:胡巍巍[1]
机构地区:[1]韩山师范学院地理与旅游管理系,广东潮州521041
出 处:《地理空间信息》2013年第4期122-124,189,共3页Geospatial Information
基 金:国家重点基础研究发展计划资助项目(2006CB403301);韩山师范学院博士启动资助项目(QD20100710)
摘 要:采用空间测算模型,首先对基于土地利用一级分类的淮河流域中游湿地景观动态变化进行总体分析,然后对各二级湿地类型进行了详细的动态变化分析。结果表明,从各湿地景观类型变化速率来看,1950-1980年期间,淮河中游湿地景观格局变化明显,各湿地景观之间的转换量较大,天然湿地湖泊、河流、滩地、沼泽地萎缩,人工湿地水田和水库坑塘面积大幅度增长;1980-2000年期间,土地利用的基本格局变化很小。Based on the first classification of land use types,this article adopted the model of space calculation to analyze the change of wetland landscape in the middle reach of the Huaihe River basin firstly,and then analyzed the change of all kinds of wetlands in detail.The results show that the land use cover changed significantly in the middle reach from 1950s to 1980 from the change velocity of all kinds of wetlands,especially the transformation of all wetlands is big.There is a notable feature that natural wetlands including lakes,rivers,beach and marsh reduced,but constructed wetlands like rice field and reservoir greatly increased.Transformation between all kinds of landscapes is very different,and they are all different in transfer-out,transfer-in and in transfer quantities.From 1980 to 2000,there is only a little change in land use patterns in the area.
分 类 号:P208[天文地球—地图制图学与地理信息工程]
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