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作 者:张晶香[1] 杨胜天[2] 王玉娟[2] 朗杨[2]
机构地区:[1]云南曲靖师范学院云贵高原生物多样性研究所,云南曲靖655011 [2]北京师范大学地理学与遥感科学学院,北京100875
出 处:《Journal of Landscape Research》2010年第9期60-64,共5页景观研究(英文版)
基 金:Sponsored by Scientific and Research Foundation of Yunnan Provincial Education Department (08Y0303);S&T Innovation Team Project of Bio-diversity Protection of Qujing Normal University~~
摘 要:By using TM remote sensing images of Baiyangdian Wetland in 1989,1999,2003 and 2004,taking the water area between Anxin County and Cangzhou where most of Baiyangdian Wetland water body lies for landscape classification,changes in landscape pattern of Baiyangdian before and after the water supplement were analyzed with landscape indexes calculated by Fragstats3.3. The results showed that after the water supplement,from the perspective of landscape cell index,fractal dimension of major ecosystems in Baiyangdian decreased to some extent;from the perspective of landscape diversity index,diversity index of the study region also decreased,which demonstrated that ecosystem diversity in this region reduced,land cover grew to simplification;and the decreasing evenness degree of the study region also showed the uneven development of its ecosystems. That is to say,water supplement has brought favorable ecological changes to the eco-environment of Baiyangdian,which has further optimized the health condition of ecosystems in this region.By using TM remote sensing images of Baiyangdian Wetland in 1989,1999,2003 and 2004,taking the water area between Anxin County and Cangzhou where most of Baiyangdian Wetland water body lies for landscape classification,changes in landscape pattern of Baiyangdian before and after the water supplement were analyzed with landscape indexes calculated by Fragstats3.3. The results showed that after the water supplement,from the perspective of landscape cell index,fractal dimension of major ecosystems in Baiyangdian decreased to some extent;from the perspective of landscape diversity index,diversity index of the study region also decreased,which demonstrated that ecosystem diversity in this region reduced,land cover grew to simplification;and the decreasing evenness degree of the study region also showed the uneven development of its ecosystems. That is to say,water supplement has brought favorable ecological changes to the eco-environment of Baiyangdian,which has further optimized the health condition of ecosystems in this region.
关 键 词:Baiyangdian WETLAND Water SUPPLEMENT for Baiyangdian from Yuecheng Reservoir LANDSCAPE pattern LANDSCAPE index
分 类 号:P208[天文地球—地图制图学与地理信息工程] P901[天文地球—测绘科学与技术]
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