1Feng Ping and Wang Zhongjue (Department of Water Conservancy & Hydroelectricity, Institute of Architectural Engineering, Tianjin University, Tianjin 300072, China).STUDY ON DROUGHT DISASTER & MANAGEMENT MEASURES[J].Natural Disaster Reduction in China,2002(4):26-29.
3Lei Zhihong,Liang Xiaoming,Xu Xiaoqing,Xia Yicheng (Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China) Norio Ogura (Department of Environmental Science and Resources,Tokyo University of Agriculture and Technology,Tokyo,Japan).Chemical characteristics of acidified waters in southwest China[J].Journal of Environmental Sciences,1995,7(1):36-43.