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4 February 2011 Study on the spatial distribution of ecological environment in Songhuajing watershed based on land use and its change: Harbin region as example
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Proceedings Volume 7752, PIAGENG 2010: Photonics and Imaging for Agricultural Engineering; 775209 (2011) https://doi.org/10.1117/12.887831
Event: International Conference on Photonics and Image in Agricultural Engineering (PIAGENG 2010), 2010, Qingdao, China
Abstract
The Index system of land eco-environmental status evaluation was constructed from Landsat TM images of 1996 and 2005a, based on RS. Supported by the function of GIS special analysis and geological statistical, the mini-watersheds was used as evaluation units(5×5km) based on the land use and its changes, the land eco-environmental status index (EI) model was used to evaluate. The changes in results of EI were studied. The result shown that: the total land ecoenvironmental status in 2005 was general, the tendency was better compared with 1996, the area of slightly and basically better accounted for 21.39% of the total area, this region was mountains and hills and the conversion of from cultivated land to forestland was the main track, the proportion of unchanged region was 78.17%,which occupied the dominant position and was the major section for the activities of people living and agriculture, the proportion of slightly worse region was lowest, the region was the fragile of hills and plains and its ecological environment was sensitive. Therefore, this study's result had noticeable significance to the regional land eco-environment protection and its improvements.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wenfeng Gong and Tiedong Liu "Study on the spatial distribution of ecological environment in Songhuajing watershed based on land use and its change: Harbin region as example", Proc. SPIE 7752, PIAGENG 2010: Photonics and Imaging for Agricultural Engineering, 775209 (4 February 2011); https://doi.org/10.1117/12.887831
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