Journal of Geographical Sciences ›› 2015, Vol. 25 ›› Issue (7): 865-878.doi: 10.1007/s11442-015-1207-6

• Orginal Article • Previous Articles     Next Articles

Land suitability assessment for post-earthquake reconstruction: A case study of Lushan in Sichuan, China

Qing TANG1,2(), Yang LI3, Yong XU1,2,*()   

  1. 1. Key Laboratory of Regional Sustainable Development Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    3. China Center for Modernization Research, CAS, Beijing 100190, China
  • Received:2014-12-05 Accepted:2015-01-20 Online:2015-07-15 Published:2015-06-24
  • Contact: Yong XU E-mail:tangq@igsnrr.ac.cn;xuy@igsnrr.ac.cn
  • About author:

    Author: Tang Qing, PhD, specialized in land use and regional sustainable development. E-mail:tangq@igsnrr.ac.cn

  • Supported by:
    National Natural Science Foundation of China, No.41301121, No.41430636, No.41171449;Science and Technology Service Network Initiative of the Chinese Academy of Sciences, No.KFJ-EW-STS-003;The Key Research Program of the Chinese Academy of Sciences, No.KZZD-EW-06-01

Abstract:

Land suitability assessment (LSA) is one of the key processes of land-use planning. Given its particularity of land suitability assessment for post-earthquake reconstruction, this paper takes into account geological conditions, risk of disasters, water and land resources conditions, and eco-environmental suitability and emphasizes safety factor in the assessment. Taking the April 20, 2013 Mw 6.6 Lushan earthquake as a case, this assessment establishes factors system, uses GIS spatial analysis techniques and data of geology, topography, resources, and eco-environment to evaluate the land suitability for reconstruction. The results show that: (1) the spatial characteristics of land suitability for reconstruction at grid scale and administrative scale manifest that most of the piedmont plains in the east are suitable for large-scale population aggregation, industrialization, and urbanization development; and (2) for the six hard-hit counties, Mingshan is the preferred region for large-scale post-earthquake reconstruction due to its high construction index and suitable land per capita, and some plots of land in the valleys could be selected for in-situ small-scale reconstruction in Lushan. The land suitability assessment for post-earthquake reconstruction would be significant to making sound reconstruction planning for achieving sustainable regional development in the Mw 6.6 Lushan earthquake stricken area. This study could be used as a reference for the regions with similar events.

Key words: land suitability, post-earthquake reconstruction, GIS, Lushan, China