thumbnail

Environmental impact of the landslides caused by the 12 May 2008, Wenchuan, China earthquake

By:
,
Edited by:
Claudio Edited by Margottini, Paolo Canuti, Kyoji Sassa
DOI: 10.1007/978-3-642-31427-8_23

Links

Abstract

The magnitude 7.9 (Mw) Wenchuan, China, earthquake of May 12, 2008 caused at least 88,000 deaths of which one third are estimated to be due to the more than 56,000 earthquake-induced landslides. The affected area is mountainous, featuring densely-vegetated, steep slopes through which narrowly confined rivers and streams flow. Numerous types of landslides occurred in the area, including rock avalanches, rock falls, translational and rotational slides, lateral spreads and debris flows. Some landslides mobilized hundreds of million cubic meters of material, often resulting in the damming of rivers and streams, impacting river ecosystems and morphology. Through an extensive search of both Chinese- and English-language publications we provide a summary of pertinent research on environmental effects, emphasizing key findings. Environmental effects caused by landslides include the alteration of agriculture, changes to natural ecosystems, changes in river morphology due to landslide dams and other effects such as sedimentation and flooding. Damage by landslides to the giant panda reserve infrastructure and habitat, was severe, threatening the survival of one of the world’s rarest species. The Panda reserves are of national significance to China, and to the vital tourism economy of the region. One of the major impacts to both the natural and built environment is the complete relocation of some human populations and infrastructure to new areas, resulting in the abandonment of towns and other areas that were damaged by the earthquake and landslides. The landslide effects have affected the biodiversity of the affected area, and it has been hypothesized that strict forest preservation measures taken in the years preceding the earthquake resulted in a reduction of the environmental damage to the area.

Geospatial Extents

Additional Publication Details

Publication type:
Book chapter
Publication Subtype:
Book Chapter
Title:
Environmental impact of the landslides caused by the 12 May 2008, Wenchuan, China earthquake
DOI:
10.1007/978-3-642-31427-8_23
Year Published:
2013
Language:
English
Publisher:
Springer
Contributing office(s):
Geologic Hazards Science Center
Description:
6 p.
Larger Work Type:
Book
Larger Work Subtype:
Other Government Series
Larger Work Title:
Landslide Science and Practice
First page:
179
Last page:
184
Country:
China
State:
Wenchuan