Drought risk analysis and zoning in Guangdong Province based on AHP and GIS
HUANG Jinlin1,3, FAN Jiawei2, LUO Rihong1,3
1. Guangdong Research Institute of Water Resources and Hydropower, Guangzhou 510635; 2. Institute of Architectural Engineering, College of Science&Technology Ningbo University, Ningbo 315300; 3. Technical Research Center of Guangdong-Hong Kong-Macao Greater Bay Area's Water Safety Guarantee, Guangzhou 510635
Abstract：In order to reduce the impact of drought disasters and improve the ability to cope with drought disasters, based on the meteorological and social data of Guangdong Province, selected three evaluation elements of disaster risk, environmental sensitivity and vulnerability to disasters as the criteria layer. On the basis of building the drought risk analysis system, this paper used AHP and GIS to carry out drought risk analysis under the condition of multiple indicators. According to the drought comprehensive risk zoning map of Guangdong Province, the results showed that the risk areas in Guangdong Province presented staggered distribution and the areas (higher than medium risk) accounted for 75.5% of the total area. Based on the analysis of historical disaster data, the risk zoning distribution was basically consistent with the actual situation. The analysis results could provide reference basis for Guangdong Province to effectively cope with drought.
黄锦林, 范嘉炜, 罗日洪. 基于AHP和GIS的广东省干旱风险分析与区划[J]. 中国防汛抗旱, 2023, 33(4): 15-21.
HUANG Jinlin, FAN Jiawei, LUO Rihong. Drought risk analysis and zoning in Guangdong Province based on AHP and GIS. journal1, 2023, 33(4): 15-21.
2023, Vol. 33 
