Related Experiment Video
Updated: Aug 9, 2026

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils
Published on: November 25, 2016
Mobility and speciation of Cd, Cu, and Zn in two acidic soils affected by simulated acid rain
Zhao-hui Guo1, Bo-han Liao, Chang-yong Huang
1Department of Environmental Engineering, Central South University, Changsha 410083, China. zhguo@mail.csu.edu.cn
Abstract:
Through a batch experiment, the mobility and speciation of heavy metals (Cd, Cu, Zn) in two acidic forest soils from Hunan Province were studied. The results showed that the release and potential active speciation of Cd, Cu, and Zn in the tested contaminated red soil (CRS) and yellow red soil (CYRS) increased significantly with pH decreasing and ion concentrations increasing of simulated acid rain, and these effects were mainly decided by the pH value of simulated acid rain. Cd had the highest potential risk on the environment compared with Cu and Zn. Cd existed mainly in exchangeable form in residual CRS and CYRS, Cu in organically bound and Mn-oxide occluded forms, and Zn in mineral forms due to the high background values.
Related Concept Videos
Precipitation and Co-precipitation
Extraction: Advanced Methods
Microbes and Other Elemental Cycles
Microbial Bioremediation of Uranium
Microbial Leaching
Acid Mine Drainage

