南水北调与水利科技2017，Vol.15Issue(5)：127-133,7.DOI:10.13476/j.cnki.nsbdqk.2017.05.020
新疆玛纳斯河流域典型剖面地下水位动态分析
Analysis of groundwater level dynamics along typical profile of the Manas River Basin,Xinjiang
摘要
Abstract
Manas River Basin of Xinjiang is a region with a high exploitation level of water resources and a high level of economic development.Based on the trend analysis of the monitoring data of a typical profile constituted by 13 monitoring wells from 2010 to 2014 in Manas River Basin,we found that the groundwater level of the entire profile showed continual declination.The decreasing rate of groundwater level in the single unconfined groundwater area of the upper alluvial plain was 0.65-0.83 m/a (averaging 0.74 m/a);the decreasing rate of groundwater level in the middle overflow zone was 1.12 m/a;the decreasing rates of groundwater level in the upper part and lower part of the alluvial fine soil plain area were 0.59-3.07 m/a (averaging 1.77 m/a) and 0.35-3.98 m/a respectively (averaging 2.41 m/a).The annual decreasing rate of groundwater level tended to increase from upstream to downstream.In terms of the annual variance of groundwater level,the change of groundwater depth in the alluvial plain was down-up-down;the change in the overflow zone and its northern area was up-down-up.The groundwater dynamic type in the single unconfined groundwater area of the upper alluvial plain was infiltration-runoff type,while in the overflow zone and the alluvial fine soil plain area was exploitation type.Because the regional groundwater level continued to decline,the present groundwater depth (5.89-67.46 m) was much larger than the critical depth of desertification (6.0 m).The ecological environment was deteriorating.Based on the analysis of water resources utilization in Shihezi City and Manas County,the continual declination of groundwater level was caused by both groundwater overexploitation and effective utilization of regional water resources which reduced the groundwater recharge.Finally,we proposed that water resources utilization must be scientifically planned and the area of irrigation and groundwater exploitation quantity must be reduced,while the mechanism of ecological compensation must be carried out,so as to ensure sustainable economic and social development in the basin.关键词
玛纳斯河流域/地下水位动态/地下水位持续下降/地下水超采Key words
Manas River Basin/groundwater level dynamics/continual declination of groundwater level/groundwater overexploitation分类
天文与地球科学引用本文复制引用
魏兴,贾瑞亮,周金龙,王新中..新疆玛纳斯河流域典型剖面地下水位动态分析[J].南水北调与水利科技,2017,15(5):127-133,7.基金项目
国家自然科学基金新疆联合基金重点支持项目"干旱内陆盆地地下水流系统模式与地下水补给排泄研究"(U14032)NSFC-Xinjiang project "Study on groundwater flow system and groundwater recharge and discharge in arid inland basins (U14032)" （U14032）
