摘要
以构建的适合于平原灌区虾稻共作田降雨-径流过程模拟的TANK-MIKE 11耦合模型为工具,对四湖流域典型虾稻共作田区进行区域排涝影响研究。模拟了在不同降雨标准下,虾稻田种植面积占比、虾稻田上限排水深等条件变化对四新垸农排区径流的影响,结果表明:在不同历时暴雨重现期下,相较于50%现有虾稻共作种植面积,当虾稻田面积为10%与90%时,外排水量分别增加6%~28%和减少3%~18%;在各种设计暴雨下,相较于1.2 m虾沟上限排水深,1.3m时洪峰流量减小3.01%~5.62%。1.4 m时洪峰流量减小5.79%~10.36%。
By using the TANK-MIKE 11 coupling model,which is suitable for simulating rainfall-runoff processes in shrimp and rice co-cropping fields in plain irrigation area,this paper studies the effects of regional drainage and waterlogging on typical shrimp and rice co-cropping fields in Sihu Basin.Under different rainfall standards,the influences of the proportion of cultivated area in shrimp paddy fields and the upper drainage depth of shrimp paddy fields on runoff in Sixin Dikes are simulated.The main conclusions are as follows:Compared with 50%of the existing shrimp rice co-cropping area,the external displacement has increased by 6%~28%and decreased by 3%~18%when the shrimp rice paddy area was 10%and 90%,respectively.Under various designs,compared with the upper drainage depth of shrimp ditch at 1.2 m,the flood peak flow has decreased by 3.01%~5.62%.At 1.4 m,the flood peak flow has decreased by 5.79%~10.36%.
作者
何天楷
何军
刘路广
范杨臻
黄洁
HE Tian-kai;HE Jun;LIU Lu-guang;FAN Yang-zhen;HUANG Jie(College of Hydraulic and Environmental Engineering,Three Gorges University,Yichang 443002,Hubei Province,China;Hubei Water Resources Research Institute,Wuhan 430070,Hubei Province,China)
出处
《中国农村水利水电》
北大核心
2023年第5期146-150,共5页
China Rural Water and Hydropower
基金
国家重点研发计划项目(2018YFC1508300)
湖北省财政项目(2020-218-004-001)。
