Spatial distribution and ecological risk assessment of heavy metals in karst soils from the Yinjiang County, Southwest China.

ABSTRACT:

Background

Soil heavy metals (HMs) under different land-use types have diverse effects, which may trigger the ecological risk. To explore the potential sources of HMs in karst soils, the spatial distribution and geochemical behavior of HMs based on different land-use types are employed in this study.

Methods

Soil samples (n = 47) were collected in three suites of karst soil profiles from the secondary forest, abandoned cropland and shrubland in Yinjiang, Southwest China. The concentrations of Ni, Mn, Cr, Pb, Cd and Mo were determined to give a comprehensive understanding of the possible sources of these HMs and evaluate the potential ecological risk in Yinjiang County.

Results

The mean concentrations of HMs in all profiles followed the same order: Mn > Cr > Ni

SUBMITTER: Han R 

PROVIDER: S-EPMC8815369 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature