Effects of different treatments on soil-borne DDT and HCH dynamics and plant uptake
Article
Article Title | Effects of different treatments on soil-borne DDT and HCH dynamics and plant uptake |
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ERA Journal ID | 5854 |
Article Category | Article |
Authors | Li, Huashou (Author), Ling, Weifeng (Author) and Lin, Chuxia (Author) |
Journal Title | Journal of Environmental Science and Health Part B: Pesticides, Food Contaminants, and Agricultural Wastes |
Journal Citation | 46 (7), pp. 608-614 |
Number of Pages | 7 |
Year | 2011 |
Place of Publication | Philadelphia, PA, United States |
ISSN | 0360-1234 |
1532-4109 | |
Digital Object Identifier (DOI) | https://doi.org/10.1080/03601234.2011.589313 |
Abstract | Pot experiments were conducted to examine the effects of various fertilizers, as well as soil dilution treatments on the dynamics of soil-borne DDTs [sum of dichlorodiphenyltrichloroethane (DDT), chlorodiphenyldichloroethylene (DDE) and dichlorodiphenyldichloroethane (DDD)] and hexachlorocyclohexanes (HCHs, sum of α-HCH, β-HCH, γ-HCH and δ-HCH) and their subsequent impacts on the uptake of DDTs and HCHs by a test plant. The results show that the soil residual DDTs and HCHs concentrations in the iron-rich fertilizer-treated soil were significantly lower than those in other fertilizer-treated soils. There was a close relationship between the soil residual DDTs and the plant tissue DDTs. This suggests that the uptake rate of DDTs by the plant was dependent on the concentration of soil-borne DDTs. A less close relationship between soil residual HCHs and plant tissue HCHs was also observed. Dilution of pesticide-contaminated soil with the non-contaminated soil not only physically reduced the concentration of pesticides in the soil but also enhanced the loss of soil-borne pesticides, possibly through the improvement of soil conditions for microbial degradation. Soil dilution had a better effect on promoting the loss of soil-borne HCHs, relative to soil-borne-DDTs. The research findings obtained from this study have implications for management of heavily contaminated soils with DDTs and HCHs. Remediation of DDTs and HCHs-contaminated soils in a cost-effective way can be achieved by incorporating treatment techniques into conventional agricultural practices. Applications of iron-rich fertilizer and soil dilution treatments could |
Keywords | fertilizer; DDT; HCH; pesticide; soil contamination; plant uptake |
ANZSRC Field of Research 2020 | 410303. Bioremediation |
300499. Crop and pasture production not elsewhere classified | |
410601. Land capability and soil productivity | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | South China Agricultural University, China |
Australian Centre for Sustainable Catchments | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q0w9w/effects-of-different-treatments-on-soil-borne-ddt-and-hch-dynamics-and-plant-uptake
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