Characterization of mercury concentration from soils to needle and tree rings of Schrenk spruce (Picea schrenkiana) of the middle Tianshan Mountains, northwestern China
Mercury (Hg) is a potent neurotoxin in low concentrations and can be transported over a long distance in the atmosphere. Due to Hg accumulation, plant tissues could be used as a low-cost and efficient biological indicator. A significant linear relationship was found between Hg value and organic carb...
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Online Access: | http://ir.ieecas.cn/handle/361006/13845 https://doi.org/10.1016/j.ecolind.2019.04.066 |
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ftchinacascieeca:oai:ir.ieecas.cn:361006/13845 2023-06-11T04:12:43+02:00 Characterization of mercury concentration from soils to needle and tree rings of Schrenk spruce (Picea schrenkiana) of the middle Tianshan Mountains, northwestern China Kang, Huhu Liu, Xiaohong Guo, Junming Wang, Bo Xu, Guobao Wu, Guoju Kang, Shichang Huang, Jie 2019-09-01 http://ir.ieecas.cn/handle/361006/13845 https://doi.org/10.1016/j.ecolind.2019.04.066 英语 eng ELSEVIER SCIENCE BV ECOLOGICAL INDICATORS http://ir.ieecas.cn/handle/361006/13845 doi:10.1016/j.ecolind.2019.04.066 Tree rings Point-pollution source Soil Needles and tree bark Mercury pollution CHLORALKALI PLANT GRENOBLE ATMOSPHERIC MERCURY SCOTS PINE HEAVY-METALS ICE CORE DEPOSITION HG EMISSIONS POLLUTION BARK Biodiversity & Conservation Environmental Sciences & Ecology Biodiversity Conservation Environmental Sciences 期刊论文 2019 ftchinacascieeca https://doi.org/10.1016/j.ecolind.2019.04.066 2023-05-08T13:24:31Z Mercury (Hg) is a potent neurotoxin in low concentrations and can be transported over a long distance in the atmosphere. Due to Hg accumulation, plant tissues could be used as a low-cost and efficient biological indicator. A significant linear relationship was found between Hg value and organic carbon content in soil, and the highest Hg concentration reached up to the level of 267.1 ng/g in the topsoil layer near the coal-fired power plant. There were evident distance-dependent variations of Hg concentration in needles close to the cement factory. There was a significant Hg accumulation in the needles from all sites, and the highest Hg concentrations were observed in needle samples from the site nearest to the cement factory (HXG1). Hg in tree rings increased by year gradually for all sites, with the highest concentrations of Hg recorded in the site closest to the cement factory. The tree bark of the HXG1 site recorded the highest Hg concentration (65.8 ng/g), reflecting the total Hg deposition from the atmosphere and cement dust associated-Hg loading over the region. Due to the limited data, however, we cannot confirm the possible translocation of Hg from tree bark to outmost tree rings at this time. Overall, we concluded that in our study area, most of the accumulated Hg emissions originated from the cement factory. Even at low Hg concentrations, Hg in tree-rings, needles and barks could not only be used as bioindicators for Hg pollution but also infer the pollution history over long-term periods and to enhance our understandings of the biogeochemical Hg cycling in the forest ecosystems. Report ice core Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) The Needles ENVELOPE(-70.967,-70.967,-68.950,-68.950) Ecological Indicators 104 24 31 |
institution |
Open Polar |
collection |
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacascieeca |
language |
English |
topic |
Tree rings Point-pollution source Soil Needles and tree bark Mercury pollution CHLORALKALI PLANT GRENOBLE ATMOSPHERIC MERCURY SCOTS PINE HEAVY-METALS ICE CORE DEPOSITION HG EMISSIONS POLLUTION BARK Biodiversity & Conservation Environmental Sciences & Ecology Biodiversity Conservation Environmental Sciences |
spellingShingle |
Tree rings Point-pollution source Soil Needles and tree bark Mercury pollution CHLORALKALI PLANT GRENOBLE ATMOSPHERIC MERCURY SCOTS PINE HEAVY-METALS ICE CORE DEPOSITION HG EMISSIONS POLLUTION BARK Biodiversity & Conservation Environmental Sciences & Ecology Biodiversity Conservation Environmental Sciences Kang, Huhu Liu, Xiaohong Guo, Junming Wang, Bo Xu, Guobao Wu, Guoju Kang, Shichang Huang, Jie Characterization of mercury concentration from soils to needle and tree rings of Schrenk spruce (Picea schrenkiana) of the middle Tianshan Mountains, northwestern China |
topic_facet |
Tree rings Point-pollution source Soil Needles and tree bark Mercury pollution CHLORALKALI PLANT GRENOBLE ATMOSPHERIC MERCURY SCOTS PINE HEAVY-METALS ICE CORE DEPOSITION HG EMISSIONS POLLUTION BARK Biodiversity & Conservation Environmental Sciences & Ecology Biodiversity Conservation Environmental Sciences |
description |
Mercury (Hg) is a potent neurotoxin in low concentrations and can be transported over a long distance in the atmosphere. Due to Hg accumulation, plant tissues could be used as a low-cost and efficient biological indicator. A significant linear relationship was found between Hg value and organic carbon content in soil, and the highest Hg concentration reached up to the level of 267.1 ng/g in the topsoil layer near the coal-fired power plant. There were evident distance-dependent variations of Hg concentration in needles close to the cement factory. There was a significant Hg accumulation in the needles from all sites, and the highest Hg concentrations were observed in needle samples from the site nearest to the cement factory (HXG1). Hg in tree rings increased by year gradually for all sites, with the highest concentrations of Hg recorded in the site closest to the cement factory. The tree bark of the HXG1 site recorded the highest Hg concentration (65.8 ng/g), reflecting the total Hg deposition from the atmosphere and cement dust associated-Hg loading over the region. Due to the limited data, however, we cannot confirm the possible translocation of Hg from tree bark to outmost tree rings at this time. Overall, we concluded that in our study area, most of the accumulated Hg emissions originated from the cement factory. Even at low Hg concentrations, Hg in tree-rings, needles and barks could not only be used as bioindicators for Hg pollution but also infer the pollution history over long-term periods and to enhance our understandings of the biogeochemical Hg cycling in the forest ecosystems. |
format |
Report |
author |
Kang, Huhu Liu, Xiaohong Guo, Junming Wang, Bo Xu, Guobao Wu, Guoju Kang, Shichang Huang, Jie |
author_facet |
Kang, Huhu Liu, Xiaohong Guo, Junming Wang, Bo Xu, Guobao Wu, Guoju Kang, Shichang Huang, Jie |
author_sort |
Kang, Huhu |
title |
Characterization of mercury concentration from soils to needle and tree rings of Schrenk spruce (Picea schrenkiana) of the middle Tianshan Mountains, northwestern China |
title_short |
Characterization of mercury concentration from soils to needle and tree rings of Schrenk spruce (Picea schrenkiana) of the middle Tianshan Mountains, northwestern China |
title_full |
Characterization of mercury concentration from soils to needle and tree rings of Schrenk spruce (Picea schrenkiana) of the middle Tianshan Mountains, northwestern China |
title_fullStr |
Characterization of mercury concentration from soils to needle and tree rings of Schrenk spruce (Picea schrenkiana) of the middle Tianshan Mountains, northwestern China |
title_full_unstemmed |
Characterization of mercury concentration from soils to needle and tree rings of Schrenk spruce (Picea schrenkiana) of the middle Tianshan Mountains, northwestern China |
title_sort |
characterization of mercury concentration from soils to needle and tree rings of schrenk spruce (picea schrenkiana) of the middle tianshan mountains, northwestern china |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2019 |
url |
http://ir.ieecas.cn/handle/361006/13845 https://doi.org/10.1016/j.ecolind.2019.04.066 |
long_lat |
ENVELOPE(-70.967,-70.967,-68.950,-68.950) |
geographic |
The Needles |
geographic_facet |
The Needles |
genre |
ice core |
genre_facet |
ice core |
op_relation |
ECOLOGICAL INDICATORS http://ir.ieecas.cn/handle/361006/13845 doi:10.1016/j.ecolind.2019.04.066 |
op_doi |
https://doi.org/10.1016/j.ecolind.2019.04.066 |
container_title |
Ecological Indicators |
container_volume |
104 |
container_start_page |
24 |
op_container_end_page |
31 |
_version_ |
1768388761443368960 |