Some results of snow chemical surveys in the Kunnes River valley,East Tienshan mountains,China |
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| Institution: | 1. Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, USA;2. Agricultural Statistics Laboratory, University of Arkansas, Fayetteville, AR, USA;3. Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Rice Research and Extension Center, Stuttgart, AR 72160, USA;4. Department of Biological Sciences, University of Arkansas, Fayetteville, AR, USA;1. School of Geographical Sciences, Guangzhou University, Guangzhou 510006, China;2. Guangdong Province Engineering Technology Research Center for Geographical Conditions Monitoring and Comprehensive Analysis, Guangzhou 510006, China;3. Center of Geo-Informatics for Public Security, School of Geographic Sciences, Guangzhou University, Guangzhou 510006, Guangdong, China;4. Department of Geography, University of Cincinnati, Cincinnati, OH 45221-0131, USA;1. Environmental Physics Laboratory, Universidade de Vigo, Ourense 32004, Spain;2. Instituto Dom Luiz (IDL), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal;3. Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE CSIC), Campus de Aula Dei, Zaragoza 50059, Spain;1. Michael Fields Agricultural Institute, East Troy, WI, United States;2. Pennsylvania State University, State College, PA, United States;3. Department of Crop and Soil Sciences, Washington State University, Pullman, WA, United States;4. Department of Crop and Soil Sciences, Oregon State University, Pendleton, OR, United States;5. Washington State University Extension, Spokane, WA, United States |
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| Abstract: | Chemical surveys of snow were carried out in the upper reaches of the Kunnes River, a tributary of the Yili River in East Tienshan Mountains, China. Some surprisingly high values of sodium and potassium (K++Na+) ranging from 4.44 to 8.99 mg/l compared with other data from neighboring areas are detected. Moreover, some relative high values of SO42− with mean concentration 15.8 mg/l for new snow and 14.40 mg/l for deposited snow, ranging from 10.43 to 23.71 mg/l are also found. Therefore, it is inferred that the sodium and potassium (K++Na+) are in the forms of sulfate and that the sources of the sulfate are deserts and some dried lakes in Central Asia. It is also found that there is obviously spatial variation of ions such as K++Na+, Ca2+, SO42− and HCO3−. The concentrations of K++Na+ and SO42−, and that of Ca2+ and HCO3− have similar spatial pattern. The temporal pattern of ion concentration of new snow is considered to be mainly controlled by the depth and area of snow cover in the study area and in the areas to the west. |
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