%0 Journal Article
%T Variations of pH Value and Electrical Conductivity in the Dongkemadi Basin,Tanggula Range<br>唐古拉冬克玛底冰川流域pH值和电导率分析
%A WANG Jian
%A Aihemaiti Aximu
%A DING Yong-jian
%A LIU Shi-yin
%A WU Jin-kui
%A <br>王建
%A 艾合麦提·阿西木
%A 丁永建
%A 刘时银
%A 吴锦奎
%J 环境科学
%D 2007
%I 
%X Investigation of meltwater chemistry may provide information to understand the significance of glacier in estimating of water provenance.Most notably,the role of electrical conductivity(EC) variation in meltwater during glacier melting season has attracted considerable attention,since this may reflect the water flux.Analyses for pH and EC in 229 bulk meltwater samples have provided information about water provenance at Dongkemadi Glacier basin,an outlet tongue from the Tanggula Pass,Tibetan Plateau.The samples were collected at 14:00 from 12~(th) May to 27~(th) September in 2005 at site of controlled meltwater flux.The results document the following findings.First phase of runoff was mainly supplied by snow and glacier ice meltwater,31% and 65%,respectively,and the snow including fresh snow and winter deposited snow.Secondary phase of flux primarily was supplied by glacier ice meltwater and precipitation,but meltwater of frozen water in soil also has some contribute to flux,but only 2%.Third phase,ice bulk meltwater decreased and fresh snow meltwater increased.In different precipitation modalities variation trends of pH value and EC are following an orderd snow>rainwater>hailstone.
%K pH value
%K electrical conductivity
%K water provenance
%K Dongkemadi basin<br>pH值
%K 电导率
%K 水量来源
%K 冬克玛底冰川流域
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=C0E9ECB57A08B830&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=F3090AE9B60B7ED1&sid=6E66AAEF44D63139&eid=62430EC5AE2C2006&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=21