| 乌鲁木齐市区大气降水酸碱度及电导率变化分析 |
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| 引用本文： | 张山清,任泉,刘振新,等.乌鲁木齐市区大气降水酸碱度及电导率变化分析[J].新疆气象,2008,2(2):11-14. |
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| 作者姓名： | 张山清 任泉 刘振新 等 |
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| 作者单位： | [1]兰州大学,甘肃兰州730002; [2]乌鲁木齐市气象局,新疆乌鲁木齐830002 |
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| 摘 要： | 根据乌鲁木齐国家基本气象观测站1992--2006年的749次大气降水PH值和电导率监测资料，分析了乌鲁木齐市区大气降水酸碱度和电导率的年际和月际动态变化特征，结果表明：15a来，乌鲁木齐市区大气降水总体以中性和碱性为主，但有逐渐酸化的趋势，其中冬半年酸化更为明显，降水的年平均PH值以-0．048·a^-1的速率递减，年酸雨频率以0．624％·a^-1的速率递增。年平均大气降水电导率以-1．846us·cm^-1·a^-1一的速率递减。
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| 关 键 词： | 酸雨 PH值 电导率 动态变化 |
The Analysis on Precipitation PH Value and Conductivity in Urumqi City |
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| ZHANG Shan_qing,REN Quan and LIU Zhen-xin,et al.The Analysis on Precipitation PH Value and Conductivity in Urumqi City[J].Bimonthly of Xinjiang Meteorology,2008,2(2):11-14. |
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| Authors: | ZHANG Shan_qing REN Quan and LIU Zhen-xin |
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| Institution: | ZHANG Shan-qing, REN Quan, LIU Zhen-xin, YAN Zhan-jiang, HUANG Hong, FU Lian-xin (1. Lanzhou University, Lanzhou 730002, China; 2 . Urumqi Meteorological Bureau, Urumqi 830002, China) |
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| Abstract: | Based on the data of precipitation PH value and conductivity observed by Urumql meteorological station during 1992--2006, the interannual and inter-monthly dynamic features of precipitation PH value and conductivity are analyzed. The results showed that the precipitation in Urumqi city was neuter and alkaline mainly in recent 15 years, but had the tendency with gradually acidified. Thereinto the acidification was more obvious in winter half-year, the annual mean PH value decreased by the speed of-0.048a^-1 and the year acid rain frequency increased by 0.624%a^-1. The annual mean precipitation conductivity reduced by -1.846us· cm^-1·a^-1 in the recent 15 years overall. |
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| Keywords: | acid rain PH value Conductivity dynamic change |
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