酸雨对土壤营养元素迁移转化的影响  

Effects of simulating acid rain on the migration and transformation of nutrient elements in soil

作　　者：高太忠[1] 戚鹏[2] 张扬 李景印[1] 

机构地区：[1]河北科技大学环境科学与工程学院,河北石家庄050018 [2]中国矿业大学(北京校区)教务处,北京10083 [3]辛集市环保局,河北辛集052300

出　　处：《生态环境》2004年第1期23-26,共4页Ecology and Environmnet

基　　金：河北省教育厅博士基金项目(99010E);河北省科技厅博士基金项目(99547012D);北京师范大学水环境模拟国家重点实验室项目(9805)

摘　　要：针对近年来北方一些城市大气污染严重并导致部分月份出现酸雨,及酸雨对主要营养元素产生影响的实际情况,通过模拟pH=5.6的酸雨的淋溶实验,对土壤营养元素迁移转化规律作了较深入的研究。结果表明,土壤中硝态氮质量分数随土壤深度的增加而呈下降的趋势;土壤中速效磷、速效钾对酸雨不敏感;拟合出在土壤表层(<5 cm)、10 cm、20 cm、30 cm的不同深度,硝态氮随时间变化的迁移规律方程。Based on the fact that du to the serious air pollution in some northern cities in recent years, acid rain was occurred in some months and it could affect the characteristics of main nutrient elements in soil, this paper did a deeper research on migration and transformation of nitrate nitrogen, rapidly available phosphorus, and readily available potassium in soil environment under the effect of simulated acid rain with pH=5.6. The results showed that: (1) The content of nitrate nitrogen tends to decrease with the increase in depth of soil profile; (2) rapidly available phosphorus and readily available potassium are not sensitive to acid rain. Moreover, equations of the regularity of nitrate nitrogen migration in different depths with time were made out by computer.

关 键 词：酸雨 土壤 营养元素 淋溶实验 PH 质量分数 

分 类 号：X131.3[环境科学与工程—环境科学] X517