新疆土壤元素含量特征及其对沙尘气溶胶贡献分析  

Analysis on Element Content in Xinjiang Soil and Contribution to Dust Aerosol

作　　者：高卫东[1] 

机构地区：[1]济南大学城市发展学院

出　　处：《干旱区资源与环境》2008年第8期155-158,共4页Journal of Arid Land Resources and Environment

基　　金：中国沙漠气象科学研究基金(Sqj2006001);山东省重点学科(实验室)基金项目;济南大学博士科研启动基金(B06034)资助

摘　　要：新疆土壤中Al、Si、Ca和Fe等元素的含量较高,土壤颗粒物的粒径都比较小,特别是沙漠周围的边缘地带、河流两岸、古河道中的土壤是大气沙尘气溶胶中细颗粒物的主要来源和潜在来源。来源于地壳的物质是塔里木盆地气溶胶的主要成分;对气溶胶颗粒物进行化学分析发现,气溶胶来源主要是自然源,人类活动的影响很小;对气溶胶颗粒物中水不可溶相主要元素分析发现,该类元素具有相同的源,主要来源于地表土壤。The contents of Al,Si, Ca and Fe are higher, the soil particle size is smaller, especially, the fine particle of the soil near the desert and both sides of river and old channel is the main and potencial source of aerosol partides in sandstorms. The substance soot in the earth＇s crust is the main composition of aerosol in Tarim Basin; Chemical analysis found that most aerosol is origined from nature sources, the effect of human activity is small; The main water insoluble elements of aerosol are from the Earth＇s upper continental crust, especially, the contents of Si, Al, Fe, Ca are very close to the contents of upper crust elements, they are representative terrigenous elements.

关 键 词：新疆 土壤 气溶胶 

分 类 号：S153[农业科学—土壤学]