干旱灌区地下水位动态变化及驱动因素分析  

Change of Groundwater Depth and Impact Factors in Arid Irrigation Area

作　　者：张叶[1] 刘兵[1] 何新林[1] 张少博[1] 彭飞[1] 

机构地区：[1]石河子大学水利建筑工程学院,新疆石河子832003

出　　处：《节水灌溉》2017年第6期63-67,共5页Water Saving Irrigation

基　　金：国家自然科学基金项目(U1203282;51469028);国家科技支撑项目(2014BAC14B01;2015BAD20B03)

摘　　要：地下水作为干旱区的主要水源,研究其变化规律及其驱动因素对水资源的可持续利用具有重要意义。本文根据玛纳斯河流域典型灌区147团1996-2010年的地下水位监测资料,采用水均衡法对灌区地下水动态变化特征进行分析,并采用主成分分析法分析了影响地下水位变化的驱动因子。结果表明:该地区地下水动态处于正均衡状态,均衡差为246.322万m3/a,地下水年内、年际变化的趋势都逐渐减小。人为因素的影响占64%,比自然因素对该地区地下水位变化的影响大,其中灌水量和开采量是影响该地区地下水埋深的主要因子,它们的荷载分别为0.945和0.930。Groundwater is a main water source in arid regions. Studying its change rule and driving factors has great significance for the sustainable utilization of water resources. Based on the groundwater level monitoring data of the 147th regiment in Manas River typical irrigation district during 1996-2010, water balance method is used to analyze the groundwater variation characteristics and the principal component analysis method is used to analyze the driving factors of groundwater level variation. The results show that ： the groundwater is in a positive equilibrium state, the balance value is 2 463 220 m^3 per year and the trend of the annual and monthly variation of groundwater is gradually decreasing. The influence of human factors accounted for 64% in the region, which is larger than the influence of natural factors on the variation of groundwater level, in which irrigation and exploitation are the main factors that affect the depth of groundwater in the region, and their load are 0.945 and 0.930, respectively.

关 键 词：地下水位动态变化 水均衡 主成分分析 驱动因素 干旱灌区 

分 类 号：S273[农业科学—农业水土工程] P333.1[农业科学—农业工程]