Differences in the removal efficiency of heavy metals in soils with different vegetation backgrounds along the China-Russia crude oil pipeline

Shiyi Chen, Cunyong Ju, Yang Du, Tianqi Mu and Tijiu Cai
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Shiyi Chen: School of Forestry, Northeast Forestry University, Harbin, P.R. China
Cunyong Ju: School of Forestry, Northeast Forestry University, Harbin, P.R. China
Yang Du: Harbin Research Institute of Forestry Machinery, National Forestry and Grassland Administration, Harbin, P.R. China
Tianqi Mu: School of Forestry, Northeast Forestry University, Harbin, P.R. China
Tijiu Cai: School of Forestry, Northeast Forestry University, Harbin, P.R. China

Plant, Soil and Environment, 2023, vol. 69, issue 12, 628-639

Abstract: This work discusses the differences in the removal efficiency of heavy metals in soils along the China-Russia crude oil pipeline in different vegetation backgrounds. In this paper, two representative forest types, birch forest and larch forest, were selected for replicated sampling and experimental study in the soil of disturbed and undisturbed areas along the pipeline, respectively. The results showed that after ten years of vegetation restoration, the amount of heavy metals in the soil of birch and larch forests decreased, the Cu content in the soil under the background of the birch forest was higher than that of the larch forest, while the Zn, Mn and Pb contents were lower than that of the larch forest. The order of decreasing magnitude was Mn, Pb, Zn and Cu, and the overall decreasing rate of heavy metal content in larch forest soil was more obvious. The above conclusions indicate that vegetation restoration is an effective measure to alleviate soil heavy metal pollution.

Keywords: pipeline laying; petroleum; toxic element; contamination; ecosystem (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:69:y:2023:i:12:id:361-2023-pse

DOI: 10.17221/361/2023-PSE

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