Characteristics and Environmental Significance of pH and EC in Summer Rainfall and Shallow Firn Profile at Yulong Snow Mountain,Lijiang City,China  

作　　者：李宗省 何元庆 Wilfred H Theakstone 贾文雄 辛惠娟 张蔚 刘婧 王淑新 

机构地区：[1]State Key Laboratory of Cryospheric Sciences,Yulong Snow Mountain Glacial and Environmental Observation Station,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Sciences [3]Institute of Environment and Climate Change Research in Western China,Lanzhou University [4]School of Environment and Development,University of Manchester [5]Yulong Snow Mountain Glacial and Environmental Observation Station,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences

出　　处：《Journal of Earth Science》2010年第2期157-165,共9页地球科学学刊（英文版）

基　　金：supported by the National Basic Research Program of China (No.2007CB411501);the National Natural Science Foundation of China (Nos.40971019,J0630966,90511007);the Special Grant for Postgraduate Research,Innovation and Practice;the West Light Foundation of Chinese Academy of Sciences (No.O828A11001);the Fund from State Key Laboratory of Cryospheric Sciences

摘　　要：The seasonal and inter-annual variations of pH and EC （electrical conductivity） at Yulong （玉龙） Snow Mountain, Lijiang （丽江） City, are sensitive to precipitation variations and are important indicators of the atmospheric environment. The pH of summer rainfall at Lijiang City ranges from 6.7 to 7.4, and alkaline mineral salts dominate the variations of rainfall acidity, pH values in the shallow firn profile at Baishui （白水） Glacier No. 1 range from 5.6 to 6.3, and EC values from 2.4 to 7.3 μs/cm. The ranges are lower than those in other firn cores from China because of stronger elution and the influence of marine aerosols. This indicates that environmental records from a monsoonal temperate glacier differ from those at continental glaciers.The seasonal and inter-annual variations of pH and EC （electrical conductivity） at Yulong （玉龙） Snow Mountain, Lijiang （丽江） City, are sensitive to precipitation variations and are important indicators of the atmospheric environment. The pH of summer rainfall at Lijiang City ranges from 6.7 to 7.4, and alkaline mineral salts dominate the variations of rainfall acidity, pH values in the shallow firn profile at Baishui （白水） Glacier No. 1 range from 5.6 to 6.3, and EC values from 2.4 to 7.3 μs/cm. The ranges are lower than those in other firn cores from China because of stronger elution and the influence of marine aerosols. This indicates that environmental records from a monsoonal temperate glacier differ from those at continental glaciers.

关 键 词：PH EC Baishui Glacier No. 1 Yulong Snow Mountain Lijiang City. 

分 类 号：X16[环境科学与工程—环境科学]