绿洲城市中封闭湖泊的水量平衡实例研究  

Study on water balance of closed lake in oasis city

作　　者：陈娟[1] 随金明 赵伟[1] 陈林[1] 薛毅 安超平 宋乃平[1] Chen Juan;Sui Jinming;Zhao Wei;Chen Lin;Xue Yi;An Chaoping;Song Naiping(Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration of North-western/Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in North-Western China ofMinistry of Education,Yinchuan 750021,China)

机构地区：[1]西北土地退化与生态恢复国家重点实验室培育基地/西北退化生态系统恢复与重建教育部重点实验室,宁夏银川750021

出　　处：《农业科学研究》2019年第4期21-26,共6页Journal of Agricultural Sciences

基　　金：宁夏回族自治区研究生教育创新计划示范课程建设项目(YKC201701);宁夏高等学校一流学科(生态学)建设项目(NXYLXK2017B06);宁夏大学研究生创新项目(GIP2018072)。

摘　　要：研究绿洲城市中封闭湖泊的水量变化及其影响因子,能够为干旱区绿洲城市生态系统的维持及生态功能的发挥提供科学依据.本研究以宁夏银川市宁夏大学金波湖为研究对象,基于2015—2017年金波湖水位、降水量、蒸发量等观测资料,采用水量平衡方程计算出湖泊渗漏量,研究湖泊水量变化与气候、人工补水的关系,探讨影响湖泊水量的主要因素.2015—2017年观测时段内,金波湖补水量为量32.88~26.76万m^3,水位上升100~110 mm;渗漏量约为8.5万m^3-10.4万m^3,占湖泊总耗水量的48%~50%;蒸发量约为8.8万m^3-11.1万m^3,占总耗水量的50%~52%.降水对金波湖水量的影响微弱,水源补给、蒸发量和湖泊渗漏量是影响绿洲城市封闭湖泊水量变化的主要因素.The relationship between the amount of water introduced and lost by lakes in a certain period of time is the water balance of lakes.This study takes Jinbo Lake of Ningxia University in Yinchuan,Ningxia as the research object.Based on the observation data of Jinbo lake water level,precipitation and evaporation from 2015 to 2017,the water balance equation was used to calculate the water leakage of the lake.The relationship between the change of lake water amount,climate and artificial water supply was studied,and explore the main factors affecting lake water volume.The results showed that during the observation period from 2015 to 2017,the water level of Jinbo lake increased by 100~110 mm with the amount of water supplement of 328,800~267,600 m^3.The leakage is about 85,000~104,000 m^3,accounting for 48%~50%of the total water consumption of the lake.The evaporation amount is about 88,000~111,000 m^3,accounting for 50%~52%of the total water consumption.Precipitation has little effect on lake water volume,and water supply,evaporation and lake leakage are the main factors that affect the water volume of closed lakes in urban oasis.

关 键 词：水量平衡 蓄水量变化 封闭湖泊 绿洲 

分 类 号：P333.1[天文地球—水文科学]