The study on the depositional styles of major ions and the climatic effect of nssSO_4^(2-)in Princess Elizabeth Land, Antarctica

作     者：张明军 李忠勤 秦大河 效存德 康建成 李军 

作者机构：Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of SciencesLanzhou 730000 China Polar Research Institute of China Shanghai 200129 China Antarctic CRC and Australian Antarctic Division Hobart 7001 Australia 

出 版 物：《Chinese Journal of Polar Science》 (极地研究（英文版）)

年 卷 期：2000年第11卷第2期

页      面：107-112页

学科分类：07[理学] 0705[理学-地理学] 070501[理学-自然地理学] 

基　　金：国家自然科学基金(49771022Chinese Academy of) 

主　　题：ion dry deposition wet deposition volcanic. 

摘      要：Snow samples collected from a 50 m firn core and two snow pits along the route of the 1996/1997 Chinese First Antarctic Inland Traverse Expedition in Princess Elizabeth Land, East Antarctica, have been analyzed for chemical composition and oxygen isotope ratio. Analyzing the relationship between the concentration and flux of major ions and accumulation rate can draw the following conclusions. 1) The concentrations of major ions in the atmosphere in the study region is big enough so that the concentrations of the ions do not vary with snow accumulation rate, that is to say, the concentrations of major chemical species are independent of snow accumulation rate. 2) The results of analyzing the depositional styles of major chemical species suggest that wet deposition dominates the major ions flux. In addition, there is no apparent correlation between nssSO 2- 4 fluctuations and isotope profile. This would indicate the short-term climatic effect of volcanism is not evident in the region.