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flood hazard prediction from Soil Properties by Remote Sensing and Genographic Information System:A Case Study of Mae Rim Watershed,Chiang Mai Province,Thailand

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Pedosphere 1998年第1期8卷 71-78页

作者： PANJIANJIUN E．BERGSMA 等 CollegeofResourceandEnvironmentalScience NanjingAgri.Nniv.Nanjing210095（CHina） SoilSurveyDivision In

Physiography and soil in Mae Rim watershed, Chiang Mai Province, Thailand were investigated by using aerial photographs and satellite image in conjunction with field work, and soil infiltration rate and soil shear resistance were measured in field. Many factors affecting runoff were analyzed using the Integrated Land and Water Information System (ILWIS). As a result, a model determining flood hazard was set up. Three maps including runoff curve number map, runoff coefficient map, and flood inundation map were created. In addition, the time of concentration was predicted.

关键词： flood hazard prediction Mae Rim watershed soil properties surface runout coefficient

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On the flood Disasters in the Lower Jingjiang Reaches: Grey prediction Model and Application

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Chinese Journal of Population,Resources and Environment 2005年第3期3卷 37-41页

作者： Yang Guifang 1, Huang Changsheng 2, Yin Hongfu 2 & Li Chang’an 2 1 State Key Laborary of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China 2 China University of Geosciences, Wuhan 430074, China State Key Laborary of Estuarine and Coastal Research East China Normal University Shanghai 200062 China China University of Geosciences Wuhan 430074 China

In the light of the historical substantial data (covering a 70-year period) collected in the Lower Jingjiang segment and aided by topological grey method, here we attempt to characterize the occurrence and future trend of flood calamities in the study area. Our findings indicate that overall the high-frequent flood disasters with middle to lower damage prevail at present. A series of dramatic flood waves will appear in the years of 2016, 2022, 2030 and 2042, particularly a destructive flood will occur between 2041 and 2045 in the Lower Jingjiang reaches. Typical of sensitive response to flood hazards in close association with its special geographical location, the lower Jingjiang segment hereby can reflect the development trend of floods in the middle Yangtze reaches. According to the results, a good fitness was revealed between the prediction and practical values. This actually hints that the topological grey method is an effective mathematical means of resolving problems containing uncertainty and indetermination, thus providing valuable information for the flood prediction in the middle Yangtze catchment.

关键词： flood hazard prediction occurrence future trend grey system method lower jingjiang reaches

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