摘要
选择祁连山中部黑河上游天涝池流域为研究区,于2015年生长季(5-10月),利用HOBO U20-001-04自计式水位计对流域出口地下水位进行观测,结合气象数据,分析流域地下水动态.结果表明:距河道由近及远,地下水埋深逐渐增加;从平均状况看,5-6月中旬,地下水位缓慢抬升,6月中旬-7月水位抬升最为明显,7月初达到最大值;7月中下旬-8月,地下水位波动,9月以后处于稳定状态;5-10月整个雨季的总降水量为299.95 mm,水位变幅为1.374 m.地下水位埋深5-6月中旬受降水和气温共同影响,气温占主导作用,6月中旬-9月主要受降水量的制约.降水对地下水的补给具有滞后和累加效应.
Tianlaochi catchment, the selected study area, is located in the upper reaches of Heihe River. To study the response of the underground water dynamic to precipitation, underground water level was measured at the outlet of the catchment by water level recorders （HOBO U20-001-04, USA） from May to October in 2015. According to the weather station data, the relationship between the groundwater level and precipitation was analyzed and the results showed that the groundwater level increased with the increase of the distance from the river. The groundwater level gradually rose from May to the middle part of June, then obviously increased and reached the maximum in the first third part of July. The groundwa- ter level showed fluctuation from the middle third of July to August, and kept stable in September. During the period of observation, the total precipitation was 299.95 mm and the amplitude of groundwa- ter level was 1.374 m. The rainfall and temperature influenced the groundwater table dynamic from May to the middle part of June, and temperature played a bigger role than precipitation, from the middle part of June to September, the groundwater level was mainly affected by precipitation and after September, it kept stable. The supply of precipitation had a lag and a cumulative effect on the groundwater level.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
2017年第6期779-783,791,共6页
Journal of Lanzhou University(Natural Sciences)
基金
国家自然科学基金集成项目(91425301)
关键词
地下水
降水量
天涝池流域
动态
生长季
groundwater
precipitation
Tianlaochi catchment
dynamic
growing season
