章古台地下水位与降水量变化动态相关性分析  

Dynamic Analysis of Groundwater Level and Precipitation Change in Zhanggutai Town

作　　者：于致龙 韩辉[2] 宋鸽[2] Yu Zhilong;Han Hui;Song Ge(Qingshan Protection Bureau, Liaoning Province, Shenyang 110036, China;Department of Horqin Sandy Land Ecosystem National Positioning Observatory, Zhanggutai, Liaoning Province, Liaoning Provincial Dune-fixation Afforestation Institute, Fuxin 123000, China)

机构地区：[1]辽宁省青山保护局,辽宁沈阳110036 [2]辽宁章古台科尔沁沙地生态系统国家定位观测站,辽宁省固沙造林研究所,辽宁阜新123000

出　　处：《防护林科技》2018年第3期26-29,共4页Protection Forest Science and Technology

基　　金：国家自然科学基金项目(31570704)

摘　　要：利用辽宁省章古台气象观测站1999—2017年地下水位和降水量连续观测数据,结合2017年应用CTD水位传感器和sl3型雨量传感器对章古台2块樟子松人工固沙林生长季地下水位和降水的测定结果,对章古台地下水位与降水量变化动态相关性进行分析。结果表明:章古台地下水位变动与降水关系密切,年际间地下水位变动滞后于降水量1~2a,地下水位上升或下降有3~5a为一周期的现象。月际间地下水位变动滞后于降水量,不同埋深的地下水水位变化受降水量影响不同,8m埋深的地下水位变化受降水影响小于4 m埋深。近19年降水量未下降而地下水位呈下降趋势,这与近10年来人工大量抽取地下水及森林蒸散消耗等多种因素有关。Using continuous observation data of groundwater level&precipitation from Zhanggutai Meteorological Observatory of Liaoning Province from1999to2017,combined with measurement results of groundwater level and precipitation in the growth season in two plots of artificial sand fixation forest for Pinus sylvestris var.mongolica by applying CTD water level sensor and sl3type rainfall sensor in2017,the correlation of dynamic changes for groundwater level and precipitation in Zhanggutai Town was analyzed.Result shows that the change of groundwater level in Zhanggutai Town is closely related to precipitation,and the change of groundwater level during the year lags behind that of precipitation by1-2years.The rise or fall of groundwater level has a period of3-5years.During the month,the change of groundwater level lags behind the amount of precipitation,and the change of groundwater level in different depths is affected by precipitation.The change of groundwater level at a depth of8m is affected by precipitation less than4m.In the past19years,the precipitation has not dropped but the groundwater level has shown a downward trend.This is related to many factors such as the artificial extraction of groundwater and the consumption of forest evapotranspiration in recent10years.

关 键 词：章古台 地下水位 降水量 动态分析 

分 类 号：P33[天文地球—水文科学]