前郭灌区退水入查干湖水量分析

摘要

Qianguo Irrigation return flows into the actual Chagan Lake has always been unclear.Through the years mentioned Qianguo Irrigation Water and Irrigation quota,effective precipitation,ET,field leakage,and regional analysis of canal water evaporation and seepage ,proposed by the drainage canal into the water supply in Lake Chagan is Divided into runoff and underground water;the total amount into the lake in recent years ,an average of 285.3 million m3,of which surface runoff 113 million m3,underground diving 172,300,000 m3, with many years of actual water level in Lake Chagan-water situation basically match.%前郭灌区进入查干湖的实际退水量历来不甚明了. 通过对前郭灌区历年提水量及灌区灌溉定额、 有效降水、 ET、 田间渗漏、 渠系及区域蒸发与渗漏水量的分析研究, 提出经排水干渠进入查干湖的补给水量分为地表径流和地下潜水两个部分, 总入湖水量近年平均为2.853亿m3, 其中地表径流1.130亿m3, 地下潜水1.723亿m3, 与查干湖多年实际水位-水量情况基本相符.