本文系统分析了广东省半个世纪以来由于洪水、干旱、台风三种自然灾害造成的社会经济损失的变化特征；另外，台风对广东省旱涝灾害的影响也做了探讨。研究结果表明：1) 虽然广东省气候以湿热为主，但近几十年来，干旱愈益严重，从而由干旱而导致的经济损失增加，从这个意义上来看，广东省除了传统意义上的防洪以外，抗旱的重要性逐年增加。2) 广东省部分地区地势低平，极易受洪水淹没影响，同时，地势低平之处也往往是人口密集之处。由洪灾造成的损失在90年代之前呈上升变化，而90年代以后，洪灾损失有减少的趋势，这主要归功于降水的季节性变化以及防洪措施的改善。3) 广东省还受台风的影响，而且相当一部分洪水是由台风引起的。台风主要通过山洪、强风以及风暴潮对广东省造成破坏。
Flood, Drought and Typhoon Disasters over the Last Half-Century in Guangdong Province, China
Abstract: In this paper, we present the changing properties of social-economic losses caused by floods, droughts, and typhoon disasters in the Guangdongprovince, an economically prosperous province in theSouth China. Influences of typhoon activities on droughts and floods are also analyzed. Results based on extensive and thorough investigations indicate that: 1) Guangdong province is generally humid and warm; however, in recent decades, the negative impacts of droughts seem to be enhancing, which is proved by increasing drought-induced economic losses. In this connection, considerable importance should be attached to droughts, not solely to floods, in Guangdong; 2) Low-lying terrain of the province makes this region easy to be influenced by flood inundation. Moreover, highly urbanized areas are mostly located in the low-lying areas. Flood-induced loss was increasing before the 1990s and is decreasing after 1990s, and this should be attributed mainly to seasonal shifts of precipitation changes and enhancing human mitigation to flood disasters; 3) Typhoon activities often inflict considerable losses on the economy of Guangdong province. Moreover, flood events in the study region are mostly the results of typhoon activities. Massive floods, strong wind and storm surge accompanying typhoon activities are the major factors intensifying the negative impacts of the typhoon disasters.
文章引用: 陈永勤 , 张强 , 陈晓宏 (2012) 广东省半个世纪以来的洪水、干旱与台风灾害演变特征研究。 水资源研究， 1， 169-174. doi: 10.12677/JWRR.2012.14024
 EASTERLING, D. E., MEEHL, A. G., PARMESAN, C., CHANGNON, A. S., KARL, R. T. and MEARNS, O. L. Climate extremes: Observations, modeling, and impacts. Science, 2000, 689: 2068-2074.
 MILLY, P. C. D, WETHERALD, P. T. Increasing risk of great floods in a changing climate. Nature, 2002, 415(6871): 514-517.
 MUDELSEE, M., BÖRNGEN, M., TETZLAFF, G. and GRÜNE- WALD, U. No upward trends in the occurrence of extreme floods in the central Europe. Nature, 2003, 425: 166-169.
 BENISTON, M., STEPHENSON, D. B. Extreme climatic events and their evolution under changing climatic conditions. Global and Planetary Change, 2004, 44: 1-9.
 IMAMURA, F., To, D. V. Flood and typhoon disasters in Viet Nam in the half century since 1950. Natural Hazards, 1997, 15: 71-87.
 ZONG, Y. Q., TOOLEY, M. J. A historical record of coastal floods in Britain: Frequencies and associated storm tracks. Natural Hazards, 2003, 29: 13-36.
 HSIEH, L. S., HSU, M. H. and LI, M. H. An assessment of structural measures for flood-prone lowlands with high population density along the Keelung River in Taiwan. Natural Hazards, 2006, 37: 133-152.
 Zhang, Q., XU, C.-Y., CHEN, Y. D. and YANG, T. Spatial assessment of hydrologic alteration across the Pearl River Delta, China, and possible underlying causes. Hydrological Proc-esses, 2009, 23: 1565-1574.
 陈晓宏, 陈永勤. 珠三角网河区水文变异特征及成因[J]. 地理学报, 2002, 57(4): 430-436. CHEN, Xiaohong, CHEN, Yongqin. Hydrologic change and its causes in the river network of the Pearl River Delta. Acta Geographica Sinica, 2002, 57(4): 430-436. (in Chinese).
 CHEN, Y. D., ZHANG, Q., XU, C.-Y. and YANG, T. Change- point alterations of extreme water levels and underlying causes in Pearl River Delta, China. River Research and Application, 2009, 25(9): 1153-1168.
 ZHANG, Q., XU, C.-Y., BECKER, S., ZHANG, Z., CHEN, Y. D. and COULIBALY, M. Trends and abrupt changes of precipitation extremes in the Pearl River basin, China. Atmospheric Science Letter, 2008, 10: 132-144.
 ZHANG, Q., JIANG, T., CHEN, Y. D. and CHEN, X. H. Changing properties of hydrological extremes in south China: Natural variations or human influences? Hydrological Processes, 2010, 24(11): 1421-1432.
 广东省三防办公室. 广东省旱、涝与台风灾害[M]. 暨南大学出版社, 1997. Headquarters of Flood Control, Drought Relief and Wind Break of Guangdong Province (HFDWG), Guangdong Hydraulic De-partment. Floods, droughts and typhoons hazards in Guangdong Province. Press of Jinan University, 1997. (in Chinese)
 ZHANG, Q., XU, C.-Y. and ZHANG, Z. Observed changes of drought/wetness episodes in the Pearl River basin, China, using the standardized precipitation index and aridity index. Theoretical and Applied Climatology, 2009, 98: 89-99.
 ZHANG, Q., XU, C.-Y., ZHANG, Z., CHEN, Y. D. and LIU, C.-L. Spatial and temporal variability of precipitation maxima during 1960-2005 in the Yangtze River basin and possible asso-ciation with large-scale circulation. Journal of Hydrology, 2008, 353: 215-227.
 LAMB, H. H. Historical storms of the North Sea, British Isles and Northwest Europe. Cambridge: Cambridge University Press, 1991.
 WENDLAND, W. M. Tropical storm frequencies related to sea surface temperatures. Journal of Applied Meteorology, 1977, 16: 477-481.
 DOW, K. New coverage of drought impacts and vulnerability in the US Carolinas, 1998-2007. Natural Hazards, 2010, 54(2): 497- 518.