2009•Journal of landscape researchRequires access

Study on Changes of Grassland Landscape Pattern in Qinghai Lake Watershed

Zhang Fei, Kelong Chen, Hairui Duo, Su MaoXin

Abstract

The changes of grassland landscape pattern in Qinghai Lake watershed form 1977 to 2000 were studied by the method of 3S and landscape pattern analysis.The results showed that patch numbers reduced,degree of landscape fragmentation and isolation decreased,average patch area and fractal dimension increased;Form analyzing the landscape change of county area in Qinghai Lake watershed,the landscape structure of Tianjun,Gangcha,Haiyan had same change;But Gonghe had the different change,such as average patch,landscape fragmentation and resolution increased,average patch area decreased.

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Key concepts: Grassland, Watershed, Fragmentation (computing), Qinghai lake, Geography, Fractal dimension, Physical geography, Environmental science