石川河河谷区地下水人工补给潜力与补给方式  

Artificial groundwater recharge potential and recharge mode in the Shichuan River valley area

作　　者：范芷若 王煜莹 欧阳卫 周维博[1,2] FAN Zhiruo;WANG Yuying;OUYANG Wei;ZHOU Weibo(School of Water and Environment,Chang’an University,Xi’an 710054,China;Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region(Chang’an University),Ministry of Education,Xi’an 710054,China;Nanchang Economic and Technological Development Zone Urban and Rural Construction Bureau,Nanchang 330013,China)

机构地区：[1]长安大学水利与环境学院,西安710054 [2]长安大学旱区地下水文与生态效应教育部重点实验室,西安710054 [3]南昌经济技术开发区城乡建设局,南昌330013

出　　处：《南水北调与水利科技（中英文）》2023年第3期491-500,共10页South-to-North Water Transfers and Water Science & Technology

基　　金：陕西省水利科技项目(2021slkj-16)。

摘　　要：为实现石川河地下水位的有效回升进而维持采补平衡,需在该区实施地下水人工补给工程,并确定合理的补给位置及有效的补给方式。选取地下水埋深、坡度、含水层厚度、含水层渗透系数、与环境敏感区距离和给水度6个指标,运用空间分析技术对人工补给地下水地点适宜性进行评价;在此基础上建立三维地质模型分析典型人工补给潜力区的地层结构,探索可行的地下水人工补给方式。结果表明:适宜进行人工补给的高潜力和较高潜力区域主要分布在研究区中部及东南部,面积达48.01 km^(2),占研究区总面积的32.0%。建议:在石川河河道中上游高潜力和较高潜力区域的北部修建地表入渗池或渗坑;在河道中上游高潜力和较高潜力区域南部和河道中下游的较高潜力区域布设反滤回灌井群;可沿石川河河道中上游高潜力与较高潜力区域之间布置一条长约4.5 km的渗渠,利用河道进行入渗补给。研究结果可为地下水库的修建提供参考。The Shichuan River Valley is located in the hinterland of Guanzhong,and due to the shortage of surface water resources,groundwater is an important source of supply for the area.The long-term imbalance of groundwater extraction and replenishment led to multiple landing funnels in the area,resulting in the drying up of submerged aquifers on a large scale and the loss of ecological service function value of rivers.Artificial recharge is an important measure to solve the contradiction between water supply and demand in the area,prevent and control groundwater overdraft,and conserve water resources.The large underground storage space in the area provides favorable conditions for artificial groundwater recharge.The study relies on the Shaanxi Water Conservancy Science and Technology Project,through field investigation and collection of information covering topography and geomorphology,hydro-meteorology,river system,stratigraphic lithology,hydrogeological conditions and current status of groundwater development and utilization in the study area to provide a supporting basis for the subsequent study of artificial groundwater recharge.The artificial recharge conditions in the study area were comprehensively analyzed,and according to the basic principles of index selection,six indexes of groundwater table depth of burial,slope,aquifer thickness,distance to environmentally sensitive areas,aquifer permeability coefficient,and water supply degree were selected for graded scoring.Then,the AHP method was used to calculate the subjective weights and the CRITIC method to calculate the objective weights,respectively.After that,the subjective weights and objective weights of each index were combined using the formula to obtain the coupling weights.Based on the determination of weights,the raster data of each index was overlaid and calculated using ArcGIS spatial analysis technology to obtain the recharge potential scores of each area of the Shichuan River groundwater reservoir,and established a recharge suitability evaluation syste

关 键 词：空间分析 地下水人工补给 补给潜力 补给方式 石川河 

分 类 号：TV211.1[水利工程—水文学及水资源]