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[1]ZHAO Zongquan,ZHOU Liangguang.Assessment on Drought Disaster Risk in Jianghuai Watershed Region[J].Research of Soil and Water Conservation,2017,24(01):370-375.

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Assessment on Drought Disaster Risk in Jianghuai Watershed Region

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 01 Page number: 370-375 Column: Public date: 2017-02-28

Title:: Assessment on Drought Disaster Risk in Jianghuai Watershed Region

Author(s):: ZHAO Zongquan^1,2, ZHOU Liangguang^1,2; 1. College of Geographic Information and Tourism, Chuzhou University, Chuzhou, Anhui 239000, China;
2. Anhui Center for Collaborative Innovation in Geographical Information Integration and Application, Chuzhou University, Chuzhou, Anhui 239000, China

Keywords:: drought; risk assessment; principal component analysis; Jianghuai Watershed Region

CLC:: X423;S423

DOI:: -

Abstract:: Using the data of meteorology, remote sensing and social-economy statistics of Jianghuai watershed area, we selected eight indicators to build drought risk assessment system from the aspects of hazard factors, hazard-affected body, pregnant disaster environment, disaster prevention and mitigation measures. Also, the drought risk level in 2000—2010 in the area was evaluated through the method of the principal component analysis and multi-layer weighted principal component analysis. The results showed that the multi-layer right of principal component analysis was more suitable for evaluating the risk level differentiation; the drought risk level had the decreasing tendency from 2000 to 2010, the area with low drought risk level increased in about 19.8%. The risk level in southern area (Lai’an, Chuzhou, Quanjiao and Hefei, Feixi, Jin’an, Yu’an, etc.) was substantially lower than that of northern ones (Fengyang, Dingyuan, Huainan, Shouxian, etc.) and high risk level mainly concentrated in the central area.

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