Pedosphere 2(2): 147--152, 1992
ISSN 1002-0160/CN 32-1315/P
©1992 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Application of Ground Phosphate Rock to Dimmish the Effects of Simulated Acid Rain on Soil Properties |
| DONG YUAN-VAN, LI XUE-YUAN |
| Agricultural University. Wuhan 430070 |
| ABSTRACT |
| The effects of simulated acid rain retained in soil on the properties of acid soil and its diminishing by application of ground phosphate rock were investigated by using the sorption method. Results show as follows: (1) For yellow brown soil, the effect of simulated acid rain on the properties of soil with a pH value of 5.9 was relatively small, except a great quantity of acid rain deposited on it. (2) For red soil, the effect of simulated acid rain on the properties of soil was significant. With the increase of the amount of acid deposition, the pH value of soil was declined, but the contents of exchangeable H+, Al3+ and Mn2+ and the amount of SO42- retention were increased. (3) Many properties of acid soils could be improved by applying ground phosphate rock. For example, pH value of soils and the amounts of available P and exchangeable Ca2+ and Mg2+ were increased, and the amounts of exchangeable H+ and Al3+ and SO42- retained was reduced. |
| Key Words: |
| Citation: Dong, Y. V. and Li, X. Y. 1992. Application of Ground Phosphate Rock to Dimmish the Effects of Simulated Acid Rain on Soil Properties. Pedosphere. 2(2): 147-152. |
| |
|
View Full Text
|
|
|
|
