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Alternative TitleDynamics of regional ecological frangibility under natural hazard stress: A case study in Qingping Town of Sichuan Province, Southwest China
刘斌涛; 陶和平; 刘邵权; 于慧; 孔博
Corresponding Author刘斌涛
Source Publication应用生态学报


Other Abstract

By using the aerial remote sensing images after May 12, 2008 (the date of catastrophic Wenchuan Earthquake) and the unmanned aircraft vehicle remote sensing images after August 13, 2010 (the date of extraordinary debris flow), and in combining with the land use map (1∶10000), topographic map (1∶50000), and collected field investigation data of Qingping Town, Mianzhu City of Sichuan Province in 2006, this paper analyzed and evaluated the ecological frangibility of the Town. In the Town, the slightly, lightly, moderately, heavily, and extremely fragile ecological zones after the extraordinary debris flow occupied 1.9%, 7.9%, 18.7%, 23.0%, and 48.5%, respectively, with the area of heavily and extremely fragile ecological zones accounting for 71.5 % of the total, being 238.45 km2, i.e., the ecological environment was overall very fragile. Under the impact of the two natural hazards, the ecological frangibility degree of the Town increased obviously. As compared with that before the Earthquake, the area of heavily and extremely fragile ecological zones after the Earthquake increased by 12.4%, and the area of extremely fragile ecological zone was 1.67 times larger. The dynamic evolution of the ecological frangibility of the Town was mainly manifested in the conversion of heavily fragile ecological zone into extremely fragile ecological zone. Complex terrain was the key factor of the ecological frangibility of the Town.

Keyword生态脆弱性 自然灾害 动态变化 清平
Subject AreaX171.1
Indexed ByCSCD
Funding Organization中国科学院知识创新工程重要方向项目(KZCX2-YW-333,KZCXZ-EW-317)
Citation statistics
Cited Times:8[CSCD]   [CSCD Record]
Document Type期刊论文
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
刘斌涛,陶和平,刘邵权,等. 自然灾害胁迫下区域生态脆弱性动态——以四川省清平乡为例[J]. 应用生态学报,2012,1(23):193-198.
APA 刘斌涛,陶和平,刘邵权,于慧,&孔博.(2012).自然灾害胁迫下区域生态脆弱性动态——以四川省清平乡为例.应用生态学报,1(23),193-198.
MLA 刘斌涛,et al."自然灾害胁迫下区域生态脆弱性动态——以四川省清平乡为例".应用生态学报 1.23(2012):193-198.
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