环境变化对农田涝渍灾害的影响——以赣抚平原灌区三江联圩为例  

The Impact of Environmental Changes on Agricultural Waterlogging Disasters:A case study of the Three Rivers Union in the Ganfu Plain Irrigation Area

作　　者：靳伟荣 艾赣雄 熊玉江 JIN Wei-rong;AI Gan-xiong;XIONG Yu-jiang(Jiangxi Center Station of Irrigation Experiment,Nanchang 330201,Jiangxi Province,China;Agricultural Water Conservancy Department,Changjiang River Scientific Research Institute,Wuhan 430015,Hubei Province,China)

机构地区：[1]江西省灌溉试验中心站,江西南昌330201 [2]长江水利委员会长江科学院农业水利研究所,湖北武汉430015

出　　处：《中国农村水利水电》2024年第9期94-101,108,共9页China Rural Water and Hydropower

基　　金：江西省水利厅科技项目(202224ZDKT05)。

摘　　要：为探究环境变化对农田涝渍灾害的影响,构建多层联合水箱模型探究降雨量、塘堰面积占比和稻田初始水层对灌区涝水峰值的影响。研究结果表明:多层联合水箱模型能够准确模拟灌区的径流变化过程,模型率定期和验证期的模拟精度均达到乙等;灌区涝水峰值随着降雨量的增大而增大,重现期为100年的降雨量产生的涝水峰值为18.91m,较重现期50年与20年的降雨量分别增加了0.35 m、0.87 m;闸泵的工程调度可以有效控制由塘堰面积变化带来的涝水峰值变化;稻田对降雨排水具有明显的调控作用,通过预降稻田初始水层,可以有效防止区域洪涝灾害。In order to investigate the influence of environmental changes on waterlogging disasters in farmland,a multi-layer joint tank mod-el was constructed to investigate the influence of rainfall,the percentage of pond and weir area and the initial water layer of rice fields on the flooding peak in the irrigation area.The results show that:the multi-layer joint tank model can accurately simulate the runoff change process in the irrigation area,and the simulation accuracy of the model rate periodical and the validation period reaches the B class;the peak value of flooded water in the irrigation area increases with the increase of rainfall,and the peak value of waterlogging produced by the rainfall with a return period of 100 years is 18.91 m,which increases by 0.35 m and 0.87 m compared to the rainfall with a return period of 50 years and 20 years respectively;the engineering scheduling of the pumping station can effectively control the change of the peak value of waterlogging brought about by the change of the area of the pond and weir;rice fields have an obvious regulatory effect on rainfall drainage,and the re-gional flood disaster can be effectively prevented by pre-decreasing the initial water layer of rice fields.

关 键 词：环境变化 涝渍灾害 塘堰面积 水箱模型 影响机制 

分 类 号：TV93[水利工程—水利水电工程]