Release characteristics of base cations during soil mineral weathering under simulated acid rain
In order to investigating the release characteristics of base cations during soil mineral weathering,two types of red soil were collected for this simulated experiment.EDTA-ammonium acetate solution at pH 7.0 was used to remove the soil base cations in treated soil(TS).Then batch method was used to simulate leaching at pH 4.5 in treated(TS)and untreated soil(CK).The results showed that all base cations in CK groups declined sharply at first,then remained stable.But the variation trend of different base cations in TS groups are distinct from each other.And it seems that there is no remarkable difference in the release characteristics of base cations in the two types of soils,though the mineral compositions and soil parent materials are completely different.The same terrain climate and organisms conditions may be responsible for the phenomenon.
Yue Dong Jinling Yang Ganlin Zhang
State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China;Graduate School of Chinese Academy of Sciences,Beijing 100049,China
国际会议
The 11th International Symposium on Geochemistry of the Earths Surface(GES-11)(第十一届地球表层地球化学国际研讨会)
贵阳
英文
1-1
2017-06-11（万方平台首次上网日期，不代表论文的发表时间）