Spatial distribution and ecological risk assessment of heavy metal elements in rock‐soil in the mountainous areas of Southwest China: A case study of Xichang

污染 空间分布 重金属 环境科学 金属 环境化学 土工试验 土壤科学 地质学 成土作用 土层 采矿工程 土壤水分 生态学 化学 冶金 材料科学 生物 遥感
作者
Tong Li,Youguo Li,Hong Liu,Junbo Wang,Kuizhou Li,Yong Huang,Zeyu Wang,Huan Xing,Mingqiu Wei
出处
期刊:Geological Journal [Wiley]
卷期号:58 (10): 3866-3878 被引量:1
标识
DOI:10.1002/gj.4814
摘要

This study employs the Muller geological accumulation index method and the Hakanson risk assessment method in combination with ArcGIS technology to assess the potential heavy metal pollution in soil. The study aims to investigate the geochemical characteristics, pollution degree, and potential ecological risks associated with soil heavy metal element content and distribution across various geological formations. The concentrations of eight heavy metals, namely Cu, Cd, Ni, Pb, Zn, Hg, As, and Cr, were analysed by collecting samples of the soil layer, parent material layer, and parent rock layer. The proportions of samples with different risk levels are accurately calculated to locate areas with high pollution risks. The findings are as follows: Firstly, the soil pH value in the study area is low, and the Cd and Cr concentrations are 1.38 and 1.20 times the background concentrations in soil in Sichuan Province, respectively. Moreover, Cu, Cd, Ni, Zn, and Cr concentrations are 1.23, 1.10, 1.20, 1.10, and 1.55 times the background concentrations in soil in China. Secondly, the distribution of heavy metal elements varies across different geological formation units, and the heavy metal contents of different samples from the same formation also varies significantly. The concentrations of heavy metal elements are influenced by different geological formations, with the pedogenic parent rock in the soil determining the initial concentrations of heavy metal elements. Thirdly, the spatial distribution of heavy metal elements indicates a good spatial distribution coupling relationship among the soil layer, parent material layer, and rock layer. The study suggests that the contents of the eight heavy metal elements in the soil inherited the characteristics of the parent material to a large extent and are influenced and controlled by the pedogenic parent rock (geological formation). Finally, the evaluation results reveal that all eight heavy metal elements exhibit moderate pollution, with a relatively large distribution area exhibiting moderate Cd, Hg, and As pollution and above. The overall study area exhibits a mild potential ecological risk level, with some areas at a moderate potential ecological risk level, distributed in patches across the study area. Cd and Hg exhibit relatively high potential ecological risks. The potential ecological risks of heavy metals are relatively high in the JKms and Tss units. While the overall quality of the soil in the study area is good, heavy metal pollution and potential ecological risks of some elements are still above ideal levels.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
闾丘山菡完成签到,获得积分10
刚刚
Hello应助写得出发的中采纳,获得10
刚刚
木棉完成签到,获得积分20
1秒前
情怀应助猪猪hero采纳,获得10
1秒前
LaTeXer给fd163c的求助进行了留言
1秒前
量子星尘发布了新的文献求助10
3秒前
3秒前
Candy完成签到,获得积分10
4秒前
丘比特应助彩色的过客采纳,获得10
5秒前
6秒前
maybe发布了新的文献求助10
6秒前
DrCoLd完成签到,获得积分10
6秒前
7秒前
ding应助liuzengzhang666采纳,获得10
8秒前
8秒前
8秒前
闾丘山菡发布了新的文献求助10
9秒前
CipherSage应助小蜡笔采纳,获得10
10秒前
11秒前
11秒前
11秒前
李健应助全若之采纳,获得10
11秒前
踏月偷心发布了新的文献求助10
12秒前
12秒前
大方小白发布了新的文献求助10
12秒前
想飞的猪发布了新的文献求助10
13秒前
小二郎应助dhyzf1214采纳,获得30
13秒前
14秒前
15秒前
scvrl完成签到,获得积分10
16秒前
16秒前
16秒前
这个柳絮不会飞完成签到,获得积分10
16秒前
LCR完成签到,获得积分10
17秒前
猪猪hero发布了新的文献求助30
17秒前
aiyoualxb发布了新的文献求助10
17秒前
17秒前
18秒前
李芬完成签到,获得积分10
18秒前
d叨叨鱼发布了新的文献求助20
19秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3988827
求助须知:如何正确求助?哪些是违规求助? 3531183
关于积分的说明 11252671
捐赠科研通 3269809
什么是DOI,文献DOI怎么找? 1804780
邀请新用户注册赠送积分活动 881885
科研通“疑难数据库(出版商)”最低求助积分说明 809021