摘要
以松北区灌排体系及水生态环境建设工程为例,建立研究区的地下水水流数学模型,通过模型计算对比不同人工河道建设方案对区域地下水水位的影响,进而分析地下水位埋深状况,以保证项目实施后地下水位埋深不小于地下水临界深度,防止产生土壤次生盐碱化。在水流预测的基础上,根据地下水与人工河道的水量交换量,预测及评价地下水水质的发展状况;在比较预测结果的基础上,分析得出对地下水环境影响较小的人工河道建设方案。结果表明:实施方案二情况下,地下水补给渠道,且补给量较小,对地下水水质基本没有影响;实施方案一情况下,渠道河水补给地下水,且补给量较大,将对地下水水质产生较大影响。
Groundwater flow numerical simulation was established based on the irrigation and drainage system and water ecological environment construction projects in Songbei District.In order to ensure the groundwater depth not less than critical depth and to prevent secondary salinization after project,it was necessary to compare and study the influence of different artificial channels programs on groundwater depth through simulation and calculation.In further,the trend of quality of groundwater was predicted and evaluated according to the exchanged amount of water between groundwater and canal water.Based on the predicted results,the artificial channel construction programs with little influence on groundwater environment were obtained.The results show that on the conditions of implementation of the program 2,groundwater will recharge channels with a small amount and negligible impact on groundwater environment,while the program 1 is just the opposite,with channels recharging groundwater and a large amount which will cause serious impact on groundwater quality.
出处
《人民黄河》
CAS
北大核心
2013年第1期69-71,共3页
Yellow River
关键词
地下水环境
水位
水质
污染
人工河道
groundwater environment
groundwater level
water quality
pollution
artificial channel
