酸雨对珠三角不同土壤中Pb的释放规律研究  

Research on the Regular of Dissolving Pb by Acid Rain with Different Soil in Pearl River Delta

作　　者：陈福强[1] 李海萍[1] 

机构地区：[1]广东省物料实验检测中心,广东广州510080

出　　处：《广东化工》2011年第8期272-273,275,共3页Guangdong Chemical Industry

摘　　要：以Pb元素为例,通过模拟酸雨,采用与自然界相接近的间歇性淋滤方式对土样进行淋滤,研究了pH酸雨对珠三角潮土和水稻土中Pb元素的溶出规律。结果表明,龙山潮土淋失量绝大多数>0.5μg/L,pH=4.50时淋失最严重;大旺水稻土淋失量绝大多数<0.5μg/L,最大淋失量出现在pH=2.50时的表层土,且淋失量随深度呈现减小趋势,其他pH变化不大。A research on different pH of acid rain affecting the regular of dissolving Pb by simulated acid rain with moisture soil and paddy soil in Pearl River Delta was finished. The results showed that most of the losses of Pb in Long Shah moisture soil more than 0.5 μg/L, especially when pH--4.5; most of the losses of Pb in Da Wan~ Daddy soil less than 0.5 μg/L, the maximum loss occurred in surface when pH=2.5, and the losses did not vary much with pH in other tiers.

关 键 词：酸雨 潮土 水稻土 PB 

分 类 号：S153.61[农业科学—土壤学]