乌苏市平原区机电井水电折算系数及影响因素研究  

Study on Conversion Coefficient between Electricity Consumed and Water of Electromechanical Wells in the Plain Area of Wusu City and the Influencing Factors

作　　者：李宇 吴彬[1,2] 高凡 杜明亮[1,2] 曹伟 徐森[4] Li Yu;Wu Bin;Gao Fan;Du Mingliang;Cao Wei;Xu Seng(College of Water Conservancy and Civil Engineering,Xinjiang Agricultural University,Urumqi,Xinjiang,830052,China;Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention,Urumqi,Xinjiang,830052,China;Xinjiang Uygur Autonomous Region Water Resources Centre Urumqi,Xinjiang,830099,China;Xinjiang State Grid Electric Power Co.LTD,Urumqi,Xinjiang,830011,China)

机构地区：[1]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052 [2]新疆水利工程安全与水灾害防治重点实验室,新疆乌鲁木齐830052 [3]新疆维吾尔自治区水资源中心,新疆乌鲁木齐830099 [4]国网新疆电力有限公司,新疆乌鲁木齐830011

出　　处：《新疆地质》2023年第3期454-465,共12页Xinjiang Geology

基　　金：新疆水利科技专项(XSKJ-2022-07);新疆水利工程安全与水灾害防治重点实验室研究项目(ZDSYS-YJS-2021-09)联合资助。

摘　　要：水电折算系数是采用以电折水方法计量地下水开采量的关键参数。据乌苏市2332眼机电井用电量和取水量数据计算出单井水电折算系数,采用空间分析、相关性分析和时间序列分析等方法对水电折算系数的空间分布特征、影响因素、动态变化进行分析。结果表明:①水电折算系数为0.5~5.0 m^(3)/(kw·h),冲洪积细土平原(Ⅱ1)平均水电折算系数最大为3.25 m^(3)/(kw·h);②地下水埋深与水电折算系数负相关性较好,与含水层富水性呈正相关,水泵额定参数与其相关性较差;③机电井密度较大与井水灌区年内水电折算系数在4—8月随取水量增加而减小,8月出现最小值机电井密度较小和非纯井灌区年内水电折算系数基本维持不变。说明研究区水电折算系数空间分布特征不明显,水电折算系数为2~3 m^(3)/(kw·h)的机电井占50.5%;主要受水文地质条件、地下水埋深及含水层富水性影响;灌溉模式选择、井密度对水电折算系数年内动态变化影响较大。The conversion coefficient of hydropower is the key parameter to measure the amount of groundwater exploitation by electric water method.In this paper,the conversion coefficient of single well hydropower is calculated according to the data of electricity consumption and water intake of 2332 electromechanical wells in Wusu City.The spatial distribution characteristics,influencing factors and dynamic changes of the conversion coefficient of hydropower are analyzed by means of spatial analysis,correlation analysis and time series analysis.The results show that:①The variation range of hydropower conversion coefficient is 0.5~5.0 m^(3)/(kw·h),and the maximum average hydropower conversion coefficient of alluvial-proluvial plain(II1)is 3.25 m^(3)/(kw·h).②The groundwater depth has a good negative correlation with the hydropower conversion coefficient,and has a significant positive correlation with the water abundance of the aquifer.③Hydropower conversion coefficient of high density of electromechanical wells and pure well irrigation area.The hydropower conversion coefficient decreases with the increase of water intake from April to August,and the minimum value appears in August.The conversion coefficient of hydropower in the year of small electromechanical well density and non-pure well irrigation area is basically unchanged.The spatial distribution of hydropower conversion coefficient in the study area is not obvious,and the hydropower conversion coefficient of 2~3 m^(3)/(kw·h)is more than half of the electromechanical wells.Mainly affected by hydrogeological conditions,groundwater depth and water yield of aquifer;irrigation mode selection and well density have a great influence on the dynamic change of hydropower conversion coefficient during the year.

关 键 词：机电井 水电折算系数 空间分布 影响因素 动态变化 

分 类 号：S273.4[农业科学—农业水土工程]