摘要
本文采用美国农业部湿地研究所推荐的湿地评价水文模型DRAINMOD,利用西安地区的降雨和土壤资料,探讨了干旱与半干旱地区不同来水量对湿地地下水位变化的影响。同时根据美国目前采用的水文识别准则,分析了该区形成临界湿地水文条件所需的临界水量。结果表明,相同的水量在不同的月份会导致不同的湿润程度;同时,形成临界水文条件所需的水量也不同。研究结果表明了不同水量以及不同时间的供水对湿地湿润水平的影响不同。
The data of precipitation and soil properties in Xi′an area are analyzed by using the hydrological model DRAINMOD to investigate the influence of incoming water on variation of groundwater table.The model is suggested by the Wetland Research Institute,Department of Agriculture,USA.At the same time,the identification criterion currently adopted in US is applied to analyze the necessary critical incoming water for wetland formation.It is found that the incoming water with the same flow discharge may result in different wetness in different months in a year.Consequently,the necessary water flow for forming the critical hydrological condition is not a constant.
出处
《水利学报》
EI
CSCD
北大核心
2004年第6期27-32,共6页
Journal of Hydraulic Engineering
