Source of Major Anions and Cations of Snowpacks in the Typical Monsoonal Temper ate Glacial Region of China
我国典型季风海洋性冰川区雪坑中 主要阴、阳离子的来源

Snowpacks samples were collected from two glaciers: Baishui No.1 Glacier and Hailuogou No.1 Glacier in June,2006. The methods of sea-salt ions tracer,correlation analysis and trend analysis were used in this research in order to confirm the source of main ions,which indicated that Na is mainly from marine moisture and other ions mainly originate from land dust; the non-marine source percentages of Cl-,NO-3,SO-24,K ,Ca2 and Mg2 are 52%,99%,100%,98%,99.9% and 83%,respectively,in Hailuogou No.1 Glacier,while the corresponding values in Baishui No.1 Glacier are 68%,99%,100%,98%,99% and 59%. The non-marine source of ions is from dust of central Asian arid regions carried by westerly circulation and the plateau borne-areas with the Qinghai-Tibet Plateau winter monsoon in two glacial areas. However,the import of local dust in glacial area has made a great contribution to ions concentration in Baishui No.1 Glacier,which accounts for the much higher ions concentration in Baishui No.1 Glacier than that of Hailuogou No.1 Glacier. It is obvious that the source of each ion is different between Hailuogou No.1 Glacier and Baishui No.1 Glacier. There are three reasons which can explain it: firstly,the difference of the internal environment of the glacial area,such as lithology,hollow wind system,topographical relief and so on; secondly,the influence exerted by ions eluviation in snowpacks section with ions eluviation in Hailuogou No.1 Glacier being very strong; and thirdly,the discrepancies caused due to varying ions transporting styles,deposition modes,chemical characteristics and post-ions-deposition process.