摘要
Abstract
In order to improve the water use efficiency of Yuanhuiqu Irrigation District in Jiangxi Province,the basic situation of water source in the irrigation area was fully investigated,and the main crop types,corresponding irrigation area and crop irrigation system in the irrigation area were analyzed.Based on the irrigation system and balance calculus,the crop water demand in the irrigation area is calculated and analyzed in detail.Finally,by studying the factors such as the ecological water supplement of the canal system,the water supply and demand balance of the irrigation area under different levels of years is obtained.The results show that after deducting the ecological base flow,the irrigation water of Yuanhuiqu irrigation area and the upstream and downstream water demand,the monthly water level of the upstream reservoir is higher than the minimum dead water level(63.11 m)of the recent operation,and the water supply of the reservoir can meet the water demand of Yuanhuiqu irrigation area and other water users.The research results can be used for reference by relevant departments and institutions.关键词
农业灌溉/分项定额法/供需水平衡/水资源Key words
Agricultural irrigation/subentry quota method/water supply and demand balance/water resources分类
农业科技
