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Assessing ecological security at the watershed scale based on RS/GIS: A case study from the Hanjiang River Basin

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WOS被引频次:14
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成果类型:
期刊论文
作者:
Yu, Guangming;Zhang, Shu;Yu, Qiwu;Fan, Yong;Zeng, Qun;Wu, Lei;Zhou, RuiRui;Nan, Na;Zhao, Pengjie
通讯作者:
Yu, G.(yu_guangming@163.com)
作者机构:
[ Zhao, Pengjie ; Yu, Qiwu ; Wu, Lei ; Yu, Guangming ; Nan, Na ; Fan, Yong ; Zeng, Qun ; Zhou, RuiRui ; Zhang, Shu ] College of Urban and Environmental Sciences, Central China Normal University, Wuhan, 430079, China
通讯机构:
[Yu, GM] Cent China Normal Univ, Coll Urban & Environm Sci, Wuhan 430079, Peoples R China.
语种:
英文
关键词:
Ecological security - Indicator system - Spatial analysis - Watershed management - Watershed scale
期刊:
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
ISSN:
1436-3240
年:
2014
卷:
28
期:
2
页码:
307-318
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:工程学;WOS学科类别:Engineering, Civil;Engineering, Environmental;Environmental Sciences;Statistics & Probability;Water Resources
入藏号:
WOS:000328908200012;EI:20140117152652
基金类别:
Natural Science Fund of China [41001125]; Natural Science Fund of Hubei Province, China (Item name: The ecological security effect of land use and land cover change in the Hanjiang River Basin, Hubei Province, China) [2008CDB046]
机构署名:
本校为第一且通讯机构
摘要:
The purpose of this study is to develop an assessment framework of ecological security at the watershed scale to meet the need of watershed management, and to assess ecological security using this framework in the middle and lower reaches of Hanjiang River Basin (in Hubei Province, China). The states and their changes of ecological security in the study region are investigated with the support of ERDAS and ARC/INFO platform. The results show that the ecological security index (P) values in 1995 and 2000 were 0.685 and 0.699 respectively in the study region. While in 2005 and 2010, the P values were decreased to 0.657 and 0.624. In 1995, there were 5 counties with degree II state (the poor state) of ecological security, and 14 counties with degree III state (the common state). By 2000, the amount of counties with degree II decreased to 4 counties. And the number of counties with degree II is the same as 2000 in 2005. The result of 2010 shows there were 12 countries with degree III state as well as 7 counties with degree II state. The results of our case study of the Hanjiang River Basin reflect that the ES situation is very grim in the study area. The degree of ecological security developed in this study can be used as a useful tool for watershed managers and decision-makers. ©2013 Springer-Verlag Berlin Heidelberg.
参考文献:
Andreasen James K., 2001, Ecological Indicators, V1, P21, DOI 10.1016/S1470-160X(01)00007-3
Aronson J., 1993, Restoration Ecology, V1, P8, DOI 10.1111/j.1526-100X.1993.tb00004.x
Bryce SA, 2002, ENVIRON MANAGE, V30, P294, DOI 10.1007/s00267-002-2702-y
[���� CHEN Xing], 2005, [�����ѧ��չ, Progress in geography], V24, P8
Cui S-H, 2005, ACTA ECOLOGICA SINIC, V25, P861

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