摘要
海河流域水资源短缺,水资源供需矛盾突出,地下水供水量占流域总供水量的65%.长期以来,地下水资源被超采利用,然而由于监测地下水储量变化的监测井数量有限且分布不均,很难从流域尺度把握地下水储量的时空变化.本文利用GRACE重力卫星CSR05数据反演推算了海河流域2005～2009年间地下水储量的时序变化,为合理利用地下水资源提供科学依据.为验证GRACE反演推算结果的可靠性,将结果与该流域170眼监测井的数据进行对比分析,结果显示二者的变化趋势基本一致.研究结果表明:海河流域2005～2006年间地下水储量整体有所增加,且增加的幅度在逐步增大,在2006年达到峰值;自2006年起,地下水水储量上升的幅度呈缓慢减小的趋势,一直持续到2007年夏季.随后海河流域地下水储量减少,且减小的幅度变化不大.由此可以看出在该5年中地下水储量变化的整体趋势是逐年较小的.
Haihe Basin water shortages are obvious between water supply and demand, and groundwater water supply ac- counted 65% of the total water supply of the basin. A long time, groundwater resources are over-exploited and uti- lized. However, due to the limi8ted numbers of monitoring wells monitoring groundwater changes and the uneven distribution, we are difficult to know the temporal variations of the groundwater reserves from the basin-scale. By GRACE satellite CSR05 data, we can get the temporal variations of the groundwater reserves in Haihe Basin be- tween 2005 - 2009, to provide a scientific basis for the rational use of groundwater resources. In order to verfy the reliability of the GRACE results, comparing the results with the watershed data of 170 monitoring wells, the results show that the trend of the two is consistent. The results show that ： Haihe Basin groundwater reserves between 2005 - 2006 overall increase and the rate of rise increase to peak in 2006 ; a slow decreasing trend since 2006, and the rate of rise of the groundwater reserves continued until the summer of 2007 ; The groundwater reserves are decreased subsequently in Haihe Basin, and the magnitude of change is not too much. It can be seen that the change in the overall trend of the groundwater reserves in the five years year smaller year by year.
出处
《首都师范大学学报（自然科学版）》
2013年第4期88-94,共7页
Journal of Capital Normal University：Natural Science Edition
基金
国家自然科学基金(41101033
41130744)
中国博士后科学基金(2011M500347)
关键词
海河流域
地下水
时变趋势
Haihe basin, Groundwater, Time-varying trends.
