Elemental composition of the topsoil fine fraction at and around the Tibetan plateau

Huang, Ju; Wu, Guangjian; Gu, Fan; Yu, Zhenhai; An, Baosheng

doi:10.1016/j.envpol.2023.121098

Cited by 6 publications

(1 citation statement)

References 37 publications

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“…The key soil type in the middle of YZRB is subalpine grassland soil zone, with loose sandy soil structure and easy to be eroded (Zhan et al, 2021). In addition, the Gangdise polymetallic metallogenic belt is also located in the YZRB, with huge potential for Cu, Pb and Zn deposits (Huang et al, 2023). The YZRB valley is an important granary and oasis in Tibet and is most likely to be affected by heavy metals using agriculture and other activities.…”

Section: Study Areamentioning

confidence: 99%

Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibet Plateau

Xiao

Cui

Yuchun

et al. 2023

Preprint

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In this study, 112 agricultural topsoil samples were collected from the Yarlung Zangbo River Basin (YZRB) and its two tributaries, and the concentrations, spatial distribution, source apportionment, and potential ecological risk of eight heavy metals (Cd, Hg, Pb, Cr, Cu, Zn, Ni and As) were analyzed. The mean concentrations of Cu, Pb, Zn, Cr, Ni, Cd, As, Hg and Pb were 33.91, 28.21, 86.93, 109.04, 73.58, 0.12, 21.49 and 0.05 mg/kg respectively. Except for Pb, the concentration of heavy metals in soil exceeded the corresponding local background values, but did not exceed the national soil pollution risk screening values. In terms of spatial distribution, it showed that the heavy metals were enriched in the Nianchu River, and followed by Lhasa River and YZRB mainstream. Furthermore, the ecological risks were ordered as Hg > Cd > As > Ni > Cu > Pb > Cr > Zn, and the potential ecological risk index of the YZRB fell in the range of moderate ecological risk. The high risk areas were near the greenhouses of the Nianchu River, which was mainly related to agricultural activities. In addition, the positive matrix factorization results showed traffic, agricultural activities, soil parent material, and atmospheric transport sources were the four sources in soils of the YZRB. This work will provide scientific reference for the comprehensive prevention and control of heavy metal pollution in soils of agricultural facilities in the YZRB of Tibetan Plateau.

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Section: Study Areamentioning

confidence: 99%

Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibet Plateau

Xiao

Cui

Yuchun

et al. 2023

Preprint

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show abstract

Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibetan Plateau

Xiao,

Cui,

Zhao

et al. 2023

Environ Earth Sci

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In this study, 112 agricultural topsoil samples were collected from the Yarlung Zangbo River Basin (YZRB) and its two tributaries, and the concentrations, spatial distribution, source apportionment, and potential ecological risk of eight heavy metals (Cd, Hg, Pb, Cr, Cu, Zn, Ni and As) were analyzed. The mean concentrations of Cu, Pb, Zn, Cr, Ni, Cd, As, Hg and Pb were 33.91, 28.21, 86.93, 109.04, 73.58, 0.12, 21.49 and 0.05 mg/kg, respectively. Except for Pb, the concentration of heavy metals in soil exceeded the corresponding local background values, but did not exceed the national soil pollution risk screening values. In terms of spatial distribution, it showed that the heavy metals were enriched in the Nianchu River, and followed by Lhasa River and YZRB mainstream. Furthermore, the ecological risks were ordered as Hg > Cd > As > Ni > Cu > Pb > Cr > Zn, and the potential ecological risk index of the YZRB fell in the range of moderate ecological risk. The high-risk areas were in the facility agriculture fields of the Nianchu River, which was mainly related to agricultural activities. In addition, the positive matrix factorization results showed traffic, agricultural activities, natural weathering of the parent minerals, and atmospheric transport sources were the four sources in soils of the YZRB. This work will provide a scientific reference to develop appropriate pollution control measures and facility farmlands management in the YZRB of Tibetan Plateau.

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Snow chemical characteristics and meteorological controlling factors from three snowfalls of Gande in the Tibetan plateau

Ai,

Li,

et al. 2024

Atmospheric Pollution Research

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Elemental composition of the topsoil fine fraction at and around the Tibetan plateau

Cited by 6 publications

References 37 publications

Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibet Plateau

Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibet Plateau

Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibetan Plateau

Snow chemical characteristics and meteorological controlling factors from three snowfalls of Gande in the Tibetan plateau

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