Effect of Simulated Acid Rain on Acidification and Dissolution of Potassium,Natrium,Calcium and Magnesium in the Rape Plantation SoilChinese Full Text
LIANG Jun~(1,2),ZHENG You-fei~(1),LI Lu~(1),MAI Bo-ru~1 1.College of Environmental Science and Engineering,Nanjing University of Information Science ＆ Technology,Nanjing 210044,China2.Agriculture College,Guangxi University,Nanning 530004,China
Abstract: Under the natural ecological condition of rape field cultivation,effect on rape soil and dissolution in the base ions of K,Na,Ca and Mg with different pH of simulated acid rain was investigated by spraying and soil columns leaching experiments.The results show that pH value of rape soil and filtrate liquid was apparently higher than pH value of acid rain after spraying and leaching.The acid rain stress was major factors,and pH of soil was confined chiefly by acidity of acid rain on pH＜3.5.The amortizing of soil came into play on pH＞3.5 due to the base quantity in soil.The ecological environment on rape plantation soil could be initialized by amortizing in increased spraying and leaching times so that pH value could tend to be balanced.The dissolution of K,Na,Ca and Mg could be decreased with raising pH of acid rain,developing leaching amount and times,and enhanced with rape group growing.Among the four metal elements,Ca had a greater amount and variation.On the other hand,releases of K,Na,Mg in the plantation soil could be feebleness under influence by acid rain.
Keywords：
- DOI：
10.13198/j.res.2008.02.61.liangj.013
- Series：
- Subject：
- Classification Code：
X53
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