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Proceedings Paper

Study on the spatial distribution of ecological environment in Songhuajing watershed based on land use and its change: Harbin region as example
Author(s): Wenfeng Gong; Tiedong Liu
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Paper 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.

Paper Details

Date Published: 4 February 2011
PDF: 6 pages
Proc. SPIE 7752, PIAGENG 2010: Photonics and Imaging for Agricultural Engineering, 775209 (4 February 2011); doi: 10.1117/12.887831
Show Author Affiliations
Wenfeng Gong, Heilongjiang Univ. (China)
Tiedong Liu, Northeast Forestry Univ. (China)

Published in SPIE Proceedings Vol. 7752:
PIAGENG 2010: Photonics and Imaging for Agricultural Engineering
Honghua Tan, Editor(s)

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