[1]NI Zhong-yun,HE Zheng-wei,ZHAO Yin-bing,et al.Study on Damaged Land in Heavy Disaster Area of Wenchuan Earthquake[J].Research of Soil and Water Conservation,2011,18(03):198-200.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 03
Page number:
198-200
Column:
Public date:
2011-06-20
- Title:
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Study on Damaged Land in Heavy Disaster Area of Wenchuan Earthquake
- Author(s):
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NI Zhong-yun1,2, HE Zheng-wei1,2,3, ZHAO Yin-bing1,2, WANG Le1,2, GAO Hui1,2, CAI Ke-ke1,2
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1. State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu 610059, China;
2. College of Geosciences, Chengdu University of Technology, Chengdu 610059, China;
3. Key Laboratory of Resource Environment and GIS in Beijing, Capital Normal University, Beijing 100037, China
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- Keywords:
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disaster land; severely damaged area; 3S technology; Wenchuan Earthquake
- CLC:
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P315.725
- DOI:
-
-
- Abstract:
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The land in disaster area was damaged by Wenchuan earthquake.Study on the damaged land can indirectly reveal the earthquake destroy model.Based on multi-source information of disaster area,the land use types and distribution pattern before and after the earthquake based on remote sensing technology can be acquisited.The damaged land and its spatial characteristics were detected based on geographic information system technology.Study shows that the damaged land distributed along the oval seismic belt,and it has positive relationship with the distribution of faults.Landform transition zone with slope of 5°~35°covered 71.23% of the damaged land.Elevation of 1 000~2 000m areas distributed 31.89% of the total damaged land.Types of damaged land were various.While elevation of 2 000~3 000m areas distributed 34.59% of the total damaged land,and types of damaged land were single.Results show that the spatial structure of damaged land coincieded with the surface failure mechanism by earthquake.Information of damaged land can be used as the important clues for ecological environmental evaluation,recovery and reconstrucion after the earthquake.