不同类型酸雨对水稻土酸缓冲力影响研究  

The Influence on Acid Buffer Capacity of Paddy Soil with Different Types Acid Rain

作　　者：杨晓艳[1] 李海萍[1] 张汉萍[1] 杜钰娉[1] 

机构地区：[1]广东省物料实验检测中心,广东广州510080

出　　处：《广州化工》2011年第14期133-134,共2页GuangZhou Chemical Industry

基　　金：广东省珠江三角洲经济区农业地质与生态地球化学调查项目(粤农地[2007]004-07)

摘　　要：在离子强度、pH值相同的情况下,采用一年雨量不同摩尔浓度比值的硫酸根、硝酸根模拟酸雨进行土柱淋滤的模拟试验,研究不同比值的模拟酸雨对珠三角水稻土酸缓冲能力的影响。研究表明:在保持pH值、离子强度不变的情况下,不同摩尔浓度比的硫酸根、硝酸根模拟酸雨对土壤的酸缓冲力影响不明显。The influence on acid buffer capacity of Pearl River Delta paddy soil with simulative acid rain was studied. The paddy soil was filled into plastic cylinder, and was eluted by simulative acid rain of annual rainfall amount whose ion intensity and pH was same but molar concentration ratio of sulfate radical to nitrate radical was different. The study showed that keeping in the same ion intensity and pH value, different molar concentration ratio of sulfate radical to nitrate radical had little influence on the acid buffer capacity.

关 键 词：离子强度 模拟酸雨 淋滤 释放 

分 类 号：X517[环境科学与工程—环境工程]