[1]CHEN Wende.Analysis on the Dynamic of Balance of Heavy Metal Elements in Rock-Soil-Plant System in Qionglai Mountain[J].Research of Soil and Water Conservation,2015,22(03):320-324.
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Analysis on the Dynamic of Balance of Heavy Metal Elements in Rock-Soil-Plant System in Qionglai Mountain
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 03
Page number:
320-324
Column:
Public date:
2015-06-28
- Title:
- Analysis on the Dynamic of Balance of Heavy Metal Elements in Rock-Soil-Plant System in Qionglai Mountain
- Keywords:
- rock-soil-plant system; heavy metal; balance; dynamic; Qionglai Mountain
- CLC:
- S154.4;X142
- DOI:
- -
- Abstract:
- The growing environments of more than ten tree species (Cunninghamia lanceolata, Phoebe zhennan, Deciduous oak) were investigated in Qionglai Mountain. According to the collection of the rock soil and plant samples, based on the lab test, the interactions of heavy metals in rock-soil-plant system were exmined. The highest potential input of As element rock weathering on soil geological repository was observed in Citrus Sinensiss plantation, the lowest was found in Alnus Cremastogyne plantation. The highest potential input of Hg element rock weathering on soil geological repository was observed in Eucommia ulmoides plantation, the lowest was found in Alnus Cremastogyne plantation. The highest potential input of Pb element rock weathering on soil geological repository was observed in Cryptomeria fortune plantation, the lowest was found in Alnus Cremastogyne and Citrus reticulate plantations. The highest potential inputs of Al, Cd element rock weathering on soil geological repository were observed in Citrus reticulate and Citrus grandis Plantations. The litter pool of Cunninghamia lanceolata, Phoebe zhennan, Deciduous oak has a great return of soil As, Hg, Pb, Cd，while the Citrus reticulate and Citrus grandis have a small return. The litter pools of Cunninghamia lanceolata and Camellian sinensis have a great return of soil Al, while Citrus reticulate and Eucommia ulmoides have a relatively smaller return. With respect to the single element inventory, heavy metal uptakes by Camellian sinensis, Deciduous oak and Pinus massoniana are larger, but heavy metal uptakes by Cunninghamia lanceolata and Cryptomeria fortune are smaller. The soil base change of As, Hg, Al and Cd elements increased, indicating that weathering input enrichment plant is lower than that of the geological background of rock body and reflects that the concentration of pollutants in the soil is increasing. The soil base change of Pb increase or decrease.
- References:
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1900-01-01