摘要
为准确掌握固原市降水的酸碱度及发生规律,进而为开展环境气象预报及降水污染防治提供科学依据,本文利用固原市2001—2016年的酸雨观测资料进行了计算,并分析了固原市降水p H值、电导率K值的变化特征及影响因素。结果表明,固原市的年平均降水p H值为7.42,电导率K值为75.2,属于非酸雨区,p H值呈弱碱性,2001—2016年总体上呈上升趋势。固原市降水的p H值,电导率K值有明显的季节变化,p H、K值在冬春季明显大于夏秋季,即:春季平均p H,K值分别为7.58、106.6,夏季平均p H、K值分别为7.45、70.1,秋季平均p H、K值分别为7.38、67.7,冬季平均p H、K值分别为7.53、114.3。经分析,影响p H、K值与降水量、风速以及与降水前的大风扬沙、浮尘、沙尘暴天气现象有关。
In order to accurately grasp the pH and regularity of precipitation in Guyuan,and provide scientific basis for carrying out environmental weather forecasting and prevention of precipitation pollution,This paper uses the observation data of acid rain in Guyuan from 2001 to2016 to analysis the variation characteristics and influence factors of pH and conductivity in Guyuan. The results show that the annualaverage pH value in Guyuan is 7.42,and the K value is75.2,which belongs to the non-acid rain area. the pH value is weakly alkaline,and the overall trend is upward. The pH value and K value of precipitation in Guyuan have obviously seasonal changes,the pH and K values are significantly higher in winter and spring than that in summer and autumn. The pH,K value are related to the precipitation,wind speed,and the phenomenon of wind,sand,dust,and dust storms before the precipitation.
作者
王桂芳
何云
马强
梁继忠
常耀军
马国涛
WANG Guifang;HE Yun;MA Qiang;LIANG Jizhong;CHANG Yaojun;MA Guotao(Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management ofCharacteristic Agriculturein in Arid Regions of CMA, Yinchuan 750002, China;Ningxia KeyLaboratory of Meteorological Disaster Prevention and Reduction, Yinchuan 750002, China;Guyuan Meteorological Bureau, Guyuan 756000, China)
出处
《沙漠与绿洲气象》
2018年第2期31-36,共6页
Desert and Oasis Meteorology
基金
宁夏气象局科技创新领军人才项目资助
关键词
固原市
酸雨
PH
K值
变化特征
影响因素
Guyuan
acid rain
pH
K value
variation characteristics
influence factors
作者简介
王桂芳（1973-）,女,工程师,主要从事气象综合观测工作.E-mail：wangguif9695@foxmail.com
