黑河中游甘州区地下水埋深变化的时空分异  

Spatiotemporal Variation of Groundwater Depth in Ganzhou District in Middle Reaches of the Heihe River Basin

作　　者：闫云霞[1] 王随继[1] 颜明[1] 贺莉[1] 

机构地区：[1]中国科学院地理科学与资源研究所,陆地水循环及地表过程重点实验室,北京100101

出　　处：《干旱区研究》2013年第3期412-418,共7页Arid Zone Research

基　　金：国家重点基础研究发展计划(2009CB421305);国家自然科学基金面上项目(41171083)共同资助

摘　　要：根据黑河中游甘州区地下水位埋深时间变化的相似性和差异性,选择了4个典型站点,分析其地下水埋深随时间的变化趋势及产生的原因。继而基于测井埋深时间序列变化的相似性、测井位置的临近性以及地下水补给的一致性,将整个研究区分成了4个分区。第Ⅰ分区地下水总体呈下降趋势,但波动性很大,且2001年以后地下水出现上升的迹象;第Ⅱ分区地下水位呈持续下降趋势;第Ⅲ分区地下水位在分水措施实施前缓慢下降,分水后地下水位显著下降;第Ⅳ分区地下水位呈先上升后下降的趋势。并对每个分区地下水位的变化从地下水的补给和利用等方面进行了阐述。Temporal variation of groundwater depth in 4 groundwater-level monitoring wells in Ganzhou District of Gansu Province in middle reaches of the Heihe River Basin was analyzed. Based on the similarity of groundwater recharge sources, temporal variation trend of groundwater depth and proximity of the locations of groundwater-lever monitoring wells, Ganzhou District was divided into four subregions. Groundwater level in subregion Ⅰ was in a drawdown with a big fluctuation, but it was in a slight increase after 2001 ; it was in a continuous drawdown in sub- region Ⅱ ; it was in a slow drawdown in subregion Ⅲ before implementing the water redistribution project but in a sharp drawdown after implementing the proiect; it was increased at first and then in a drawdown in subregion Ⅳ.

关 键 词：地下水埋深 时空分异 甘州区 黑河中游 

分 类 号：P641[天文地球—地质矿产勘探]