莱州市地下水质的正常年变化及其与气象要素关系分析
The Normal Annual Variation of Groundwater Quality in Laizhou City and Its Relation with Meteorological Factors
任可1
作者信息
- 1. 山东省莱州市气象局,山东莱州261400
- 折叠
摘要
利用YE0-KAL612水质分析仪观测数据,统计了莱州市地下水质的地下水位深度、酸碱度、盐度、温度四要素的正常年份变化,并将地下水质四要素与测站同期的降水量、降水强度、大气温度、地面温度进行了对比分析,找出其间的相应关系.结果表明,对正常年份来说,莱州市地下水的温度相对稳定,其变值与降水无显著关系,地下水的最低温度、年中最大变温值均不随大气温度、深层地温的规律变化;强降水造成的地表水径流为影响地下水pH变化的主要因素,因强降水引发的地表径流致酸性物质累积影响地下水pH呈强酸性;地下水的最低水位与降水负距平呈正相关,最高水位受当地灌溉需求量的影响甚大;盐度变化的大小与降水量、降水时空分布是否均匀均呈相关性.
Abstract
Data were observed and detected by YE0-KAL612 water quality analyzer.Normal annual variations of the salinity,temperature,pH value and depth of groundwater in Laizhou City were measured.The four factors of groundwater quality were compared with the precipitation,precipitation intensity,atmospheric temperature and ground temperature;their corresponding relationship was found out.Results showed that the temperature of underground water was relatively stable in normal years in Laizhou City,and its changing value had no significant correlation with precipitation.The minimum temperature of underground water and the maximum temperature change both did not change with the atmospheric temperature and deep soil temperature.Surface water runoff caused by heavy precipitation was the main factor affecting the pH value of underground water,which led to the accumulation of acidic materials and affected the pH value of underground water.The minimum level of underground water showed positive correlation with the negative precipitation departure;while the maximum level was greatly affected by the local irrigation demand.Salinity change had positive correlation with precipitation and the evenly spatial and temporal distribution of precipitation.
关键词
地下水质/变化特征/气象要素/相关关系/莱州市Key words
Groundwater quality/Change characteristics/Meteorological factors/Correlation analysis/Laizhou City引用本文复制引用
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据