Research Article | OPEN ACCESS
Researching the Relationship between Vegetation Cover Change and Debris Flow Activity Based on GIS and RS
1, 2Yin Jianzhong, 2He Zhengwei and 3He Fenqin
1College of Civil Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
2Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu
University of Technology, Chengdu, 610059, China
3Department of Environmental Science and Safety Engineering, Tianjin University of
Technology, 391 Binshuixi Road, Tianjin, 300191, China
Research Journal of Applied Sciences, Engineering and Technology 2013 6:2192-2195
Received: August 02, 2012 | Accepted: September 08, 2012 | Published: February 21, 2013
Abstract
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.
Keywords:
Debris flow, GIS, relationship, RS, vegetation cover,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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