Evidence map›Paper›PMID 39300182›Full record

ArticleScientific reports2024

A study based on high-density data examines the current status and evolution laws of heavy metal environmental capacity in the Bardawu area of the Qinghai-Tibet Plateau.

Zeyong Wang, Yingchun Yang, Qi Tian, Youning Wei, Haoqi Yang, Yao Niu

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Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Zeyong WangFifth Institute of Geological and Exploration of Qinghai Province, Xining, 810000, China.
Yingchun YangFifth Institute of Geological and Exploration of Qinghai Province, Xining, 810000, China.
Qi TianFifth Institute of Geological and Exploration of Qinghai Province, Xining, 810000, China.
Youning WeiQinghai Geological Survey, Xining, 810000, China.
Haoqi YangCollege of Resources and Environment, Yangtze University, Wuhan, 430100, China. 99299735@qq.com.
Yao NiuFifth Institute of Geological and Exploration of Qinghai Province, Xining, 810000, China.

Funding

Provincial Geological Exploration Special Funds Project in Qinghai Province 2020021021jc012
6 · The paper itself

Abstract

As the first ladder of China, the Qinghai-Tibet Plateau has always been known as the "roof of the world". Its environmental carrying capacity can be estimated more accurately than other regions because of its harsh natural environment, low population density, limited industrial and agricultural development, and low human activities. However, the current ecological risks of Co and threshold research are limited, and there is a lack of awareness of W's environmental risks. Hence, this study assessed the ecological support potential of the Bardawu region within Dulan County, Qinghai Province, using 7373 soil specimens, determined regional soil baseline measures, and applied the substance equilibrium linear technique along with the ecological aggregate indicator technique to examine the heavy metal content of the soil. A comprehensive evaluation of the environmental capacity and health risks was conducted to provide a reference for pastoral planning. The findings indicated that the cumulative static ecological capacity of the six trace heavy elements in the soil was ranked as follows: Cr > Li > Ni > Cu > W > Co, with W and Co positioned as the final pair. The remaining areas with a high environmental capacity were predominantly found in the study zone. The central sector exhibited diminished environmental capacity in the southwest and northeast and presented a contamination hazard. Land use, soil type, and geological type considerably affected the six elements in the study area at the p < 0.05. The Bardawu region's mean comprehensive index of soil environmental capacity was 0.98, indicating an intermediate level of environmental capacity and a moderate health risk. This study focuses on the geological context and influence of pastoral activities on the soil, augments the distribution of various elements across the Tibetan Plateau, and suggests preliminary soil governance strategies. The findings of this study lay the groundwork for soil environmental conservation and remediation efforts in highland regions.

Indexed as

Environmental risk assessmentGeochemical characteristicsHigh-altitude ecosystemsSoil heavy metal contaminationTrace element analysis

Identifiers

PMID39300182
PMCPMC11412972

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