湖北四湖流域景观结构变化对汛期湖泊水位影响的模拟分析

借助于水文学对不同下垫面状态的产流模式研究的成果，建立了计算四湖流域两个调蓄湖泊汛期洪峰水位的模型。模拟分析的结果表明，在4种同样的降雨条件下，景观结构变化使长湖汛期日水位平均增加0．0831—1．3223m，最大增加0．1579—1．8583m，使洪湖汛期日水位平均增加1.0810一2．3008m，最大增加1．4101—2．4864m。证明景观结构变化是引起洪涝灾害加剧的重要原因且景观结构变化对湖泊洪峰水位的影响存在一种累加效应。景观结构的调整也是控制洪涝灾害的重要途径。

A modeling analysis for the effect of the changing landscape structure in Sihu W atershed in Hubei Province on the lakes' water level in flooding period

The areas of forestry in the upper reach and lakes in the lower reach of many watersheds have been on the decrease, so the flood problem has become mo re frequent and worse in China. Great attention must be paid to research about t he effect of the changing landscape structure on the hydrological process of wat ershed.; The watershed in study here, Sihu watershed in Hubei, China, is a plain consisti ng of paddy field, fishpond, lake and dry land. There were different runoff-yie l d models for the four kin...