Risk Assessment of Geological Hazard in Wudu Area of Longnan City, China

Abstract:

Risk assessment of geological hazard is the study of damage degree of human life and property affected by the geological disaster. It is of great importance for reducing harm level of geological hazard fatalness, preventing and controlling of geological disaster. As an example in Wudu area of Longnan City, we choose topography, lithology, meteorology, hydrology and human activity as the hazard assessment factors, on the basis of detailed investigation of geological conditions in study area. Then, adding the importance of the residents activity area as a risk assessment factor, we have finished the geological hazard assessment and its risk assessment by GIS combined with AHP. The result shows that the proportions of geological hazard risk of non-risk, low-risk, medium-risk and high-risk area are respectively 31%, 14%, 25% and 30%.

• Periodical: Applied Mechanics and Materials (Volume 39)
• Pages: 232-237
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.39.232
• Online since: November 2010
• Authors: Shou Yun Liang, Yun Xing Wang, Yu Wang
• Keywords: Analysis Hierarchy Process (AHP), Geographical Information System (GIS), Geological Hazard, Hazard Assessment, Risk Assessment

References

[1] Y.S. Ma, Y.C. Zhang, C.S. Zhang and J.S. Wang: Theory and Approaches to Risk Evaluation of Geological Hazards. Journal of Geomechanics, Vol. 10, No. 1(2004), pp.7-18.

[2] S.Q. Wen, R.F. Li and Q.Z. Ren: Application of GIS Technology in the Regionalization of Geological Hazards. Chinese Geology, Vol. 32, No. 3(2005), pp.512-517.

[3] X.Y. Fan, J.P. Qiao and Y.B. Chen. Application of Analytic Hierarchy Process in Assessment of Typical Landslide Danger Degree. Journal of Natural Disasters, Vol. 14, No. 1(2004), pp.72-76.

[4] S.Y. Liang and X.X. Ma: Comprehensive Assessment of Environmental Impact of Large-scale Water Conservancy Project: a Case Study of Yintao Irrigation Project on Tao River in Gansu, China. The 1st International Conference on Information Science and Engineering, IEEE Computer Society, United States(2009).

DOI: 10.1109/icise.2009.411

[5] S.Y. Liang, Y. Wang and Z.Q. Zhou: Geological Hazard Assessment of Small Towns Based on EAHP. International Conference on Management and Service Science, IEEE Computer Society, United States(2009), pp.1-4.

DOI: 10.1109/icmss.2009.5305818

[6] Y. Xiong, G.M. Zeng and G.Q. Chen: Combining AHP with GIS in Synthetic Evaluation of Eco-environment Quality: a Case Study of Hunan Province, China, Ecological Modeling, Vol. 209, No. 2-4(2007), pp.97-109.

DOI: 10.1016/j.ecolmodel.2007.06.007

[7] Q. Wu, J.J. Fu and M. Yang : Water-power Erosion in mines Coupling GIS, RS and AHP Model. Coal Geology & Exploration, Vol. 32, No. 6(2004), pp.35-38.

[8] H.T. Zhang, Y. Zhou and S.Q. Wang. Natural Productivity Evaluation of Cultivated Land Based on GIS and RS Data in Houhu Farm of Jianghan Plain. Transactions of the Chinese Society of Agricultural Engineering, Vol. 19, No. 2(2003), pp.219-222.

[9] S.Y. Liang and X.M. Yang: Landslide Hazard Assessment Based on GIS: a Case Study of a Hydropower Station Area in China. 2008 International Workshop on Education Technology and Training and 2008 International Workshop on Geoscience and Remote Sensing, Vol. 1. IEEE Computer Society, United States(2009).

DOI: 10.1109/ettandgrs.2008.104

[10] S.Y. Liang, Z.L. Huo and Y.N. Niu: Assessment of Snow Drifting Hazard along Railway: a Case Study of JYH Railway in Xinjiang, China. 2009 International Conference on Environmental Science and Information Application Technology, Vol. 1. IEEE Computer Society, United States(2009).

DOI: 10.1109/esiat.2009.107