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Abstract
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Article Information:
Researching the Relationship between Vegetation Cover Change and Debris Flow Activity Based on GIS and RS
Yin Jianzhong, He Zhengwei and He Fenqin
Corresponding Author: Yin Jianzhong
Submitted: August 02, 2012
Accepted: September 08, 2012
Published: February 21, 2013 |
Abstract:
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To investigate the relationship between vegetation cover change and debris flow activity, we conducted an experiment in the Minjiang River from 2000 to 2008 year. Researching time was divided into 4 periods and image acquisition time as the division point. The vegetation index change rate of the vegetation cover and the frequency of debris flow activity were acquired respectively for the four periods. The inverse law was found that the frequency of debris flow activity and the change rate of the vegetation index. When vegetation cover increases, the frequency of debris flow activity reduces; when the vegetation index reduces, the frequency of debris flow activity increases.
Key words: Debris flow, GIS, relationship, RS, vegetation cover, ,
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Cite this Reference:
Yin Jianzhong, He Zhengwei and He Fenqin, . Researching the Relationship between Vegetation Cover Change and Debris Flow Activity Based on GIS and RS. Research Journal of Applied Sciences, Engineering and Technology, (06): 2192-2195.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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