Trace element contaminations of roadside soils from two cultivated wetlands after abandonment in a typical plateau lakeshore, China |
| |
| Authors: | Junhong Bai Qinggai Wang Kejiang Zhang Baoshan Cui Xinhui Liu Laibin Huang Rong Xiao Haifeng Gao |
| |
| Institution: | (1) State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19 Xinjiekou Wai Street, Beijing, 100875, People’s Republic of China;(2) Appraisal Center of Environment and Engineering, Ministry of Environmental Protection, Beijing, 100012, People’s Republic of China;(3) Department of Civil Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada |
| |
| Abstract: | Total concentrations of As, Cd, Cu, Ni, Pb and Zn were determined in order to assess their changes in contamination levels
in roadside soils of long-term abandoned tillage (LAT) belt and short-term abandoned tillage (SAT) belt from a plateau lakeshore
of China. Results showed that the mean concentrations of these trace elements except for Cd and Pb were lower than background
values. The contamination index values of these trace elements fluctuated and generally decreased with increasing distances
from the road in both sampling belts except for Cu and Ni. Both LAT and SAT soils were facing Cd and Pb contamination. The
integrated contamination level was more serious in LAT soils compared to SAT soils, with heavy contamination levels at the
distances from 5 to 10 m in LAT soils. The effects of the studied rural road on both belts were clearly shown up to 250 m
away from the road. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
