IMHE OpenIR  > 山地灾害与地表过程重点实验室
Destruction of vegetation due to geo-hazards and its environmental impacts in the Wenchuan earthquake areas
Cui, Peng1; Lin, Yong-ming2; Chen, Can2
Corresponding AuthorCui, Peng
2012
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
EISSN1872-6992
Volume44Pages:61-69
SubtypeArticle
AbstractGeo-hazards induced by earthquakes have caused ecosystem degradation and vegetation destruction. Little, however, is known about the consequences of geo-hazards due to a lack of research data. We have undertaken a study in the Wenchuan earthquake-affected area of China in order to identify and characterize vegetation destruction and its consequent environmental impact. The Wenchuan earthquake on 12th May, 2008 induced numerous geo-hazards (including rock avalanches, landslides, landslide-dammed lakes and debris flows) that caused vegetation destruction up to 1249.5 km(2), of which shrub comprised the largest proportional area with 338.559 km(2). The vegetation coverage decreased by 4.76% in 9 severely damaged cities and counties and by 12.37% in the Subao river, Beichuan county. Rock avalanches and landslides were the most common destructive types, resulting in 98.73% of all types of geo-hazards, whereas debris flows and landslide-dammed lakes accounted for 1.27%. Vegetation destruction was distributed along both sides of rivers causing erosion, formation of debris flows and landslides. Hydrologic progress was changed and hydrological adjusting function diminished due to vegetation deterioration resulting in bare rock (infiltration reduced, runoff increased and flow concentration expedited) and deposit region (infiltration increased and runoff reduced) in catchment. Soil erosion was intensified causing increased sediment transportation of rivers, decreased storage capacities of reservoirs downstream, a significantly increased area that has suffered severe erosion and aggravated magnitude and damage capability of debris flows and landslides. Ecosystem function declined and vegetation restoration and reconstruction was difficult due to co-degradation of vegetation-soil system in the earthquake-affected areas. Finally, we summarized the challenges faced in the future for vegetation restoration and reconstruction. (C) 2012 Elsevier B.V. All rights reserved.
KeywordWenchuan Earthquake Geo-hazards Vegetation Destruction Restoration And Reconstruction Environmental Impacts
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.ecoleng.2012.03.012
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Engineering
Indexed BySCI
WOS KeywordCENTRAL TAIWAN ; RECOVERY ; SUCCESSION
Language英语
Quartile3区
TOP
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000305443100008
Funding OrganizationNational Basic Research Program of China (973 Program)(2011CB409902) ; Key laboratory of Mountain Hazard & Surface Processes, CAS(2009) ; Fujian Provincial Natural Science Foundation(2009J05092)
Citation statistics
Cited Times:51[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9887
Collection山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Fujian Agr & Forestry Univ, Coll Forestry, Fuzhou 350002, Peoples R China
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
Cui, Peng,Lin, Yong-ming,Chen, Can. Destruction of vegetation due to geo-hazards and its environmental impacts in the Wenchuan earthquake areas[J]. ECOLOGICAL ENGINEERING,2012,44:61-69.
APA Cui, Peng,Lin, Yong-ming,&Chen, Can.(2012).Destruction of vegetation due to geo-hazards and its environmental impacts in the Wenchuan earthquake areas.ECOLOGICAL ENGINEERING,44,61-69.
MLA Cui, Peng,et al."Destruction of vegetation due to geo-hazards and its environmental impacts in the Wenchuan earthquake areas".ECOLOGICAL ENGINEERING 44(2012):61-69.
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