太原市煤粉尘降落量监测及其对土壤肥力的影响  

Quantitative Monitoring of Coal Dust in Taiyuan City and Its Effect to Soil Nutrition

作　　者：高宏樟[1] 张强[2] 

机构地区：[1]山西大学生物工程学院,山西太原030006 [2]山西省农业科学院土壤肥料研究所山西省土壤环境与养分资源重点实验室,山西太原030031

出　　处：《山西农业科学》2008年第3期55-60,共6页Journal of Shanxi Agricultural Sciences

基　　金：山西省科技攻关项目(2006031099-1)

摘　　要：研究结果表明，煤粉尘的降落值在污染源下风向明显高于其他方位，且随平均风速的增加而增加。煤粉尘使得土壤中的pH值降低而EC值增大，在土壤的表层0-10cm更为明显。土壤表层全氮及碱解氮的含量与降尘量和煤粉尘量呈正相关关系。煤粉尘降落比较多的地方，有机质含量也高，说明煤粉尘在一定程度上增加了土壤有机质的含量；有效硫和CEC也随之增加。煤粉尘的降落在一定程度上增加了土壤肥力。Results showed a significant influence of coal dust to the north and south areas of contamination source, the Second Thermal Power Plant. Coal dust could drop soil pH and increase EC and organic matter insoil to some extent, especially in the top layer of soil. Total N and available N of the polluted region were taller than off polluted one. But in the 20 - 40 cm of soil layer the difference was not obvious in all investigate areas.

关 键 词：环境降尘 煤粉尘 土壤养分 

分 类 号：S513.6[农业科学—作物学]