离子的内容和分布特征,n链烷,并且在 Yuzhufeng ( YZF )冰河和冰河是的小 Dongkemadi ( XDKMD )上的雪坑的多不的芳香的烃在离子和二有机化合物之间的 studied.Parameter 特征和关联系数被用来探索显示的这些化学 compositions.The 结果的可能的来源两条冰河被西方风循环影响,但是离子,n链烷,和多不的芳香的 hydrocar 的内容
The contents and distribution characteristics of ions, n-alkanes, and polycyclic aromatic hydrocarbons in snow pits on the Yuzhufcng (YZF) Glacier and the Xiao Dongkernadi (XDKMD) Glacier are studied. Parameter characteristics and correlation coefficients between ions and two organic compounds are used to explore the possible sources of these chemical compositions. The results indicated that both glaciers are influenced by west wind circulation, but the contents of ions, n-alkanes, and polycyclic aromatic hydrocarbons in the YZF Glacier are higher than in the XDKMD Glacier because of differences in geographical position. The ratios of ∑nC21^-/∑nC22^+ and CPI values (CPI: carbon preference index) indicate that the n-alkanes from natural sources in these two glaciers are mainly derived from higher plants, whereas the contribution from lower organisms was small, also, n-alkanes from anthropogenic sources in the YZF Glacier are higher than in the XDKMD Glacier. The ratios of LPAHs/HPAHs and (Fly+Pyr)/(BghiP+INP) indicate that the polycyclic aromatic hydrocarbons in these two glaciers are mainly derived from low temperature combustion of coal and biomass, and, in the XDKMD Glacier, partially from the vehicle exhaust.