Evaluation of Eco-environment Quality of the Loess Plateau Area Based on Remote Sensing and Gis- a Case Study of Linfen City
نویسندگان
چکیده
The Chinese Loess Plateau is suffering from severe soil erosion. The eco-environmental changes of the plateau have attracted considerable attentions both from scientists and local governments. Aiming at the regional features of eco-environment and main environmental problems of Linfen City, the synthetic evaluation index system including Organism Abundance index, Vegetation Cover index, Water Density index and Land Degradation index were set up. Supported by GIS and taken the county as the evaluation unit, eco-environmental evaluation index method and spatial analysis were integrated into the eco-environmental quality evaluation during the 1987-2009 periods in Linfen city. The results showed that the integral eco-environment quality of Linfen city was of inferior level, the highly intense human activities speeded up the degradation of regional eco-environments in 2000, and nearly 10 years of restoration of the ecosystem had achieved some success, but also need further efforts.
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