Persistence of glyphosate and aminomethylphosphonic acid in loess soil under different combinations of temperature, soil moisture and light/darkness
文献类型：期刊论文
| 作者 | Bento, Celia P. M.1; Yang, Xiaomei1,2; Gort, Gerrit3; Xue, Sha4,5,6; van Dam, Ruud7; Zomer, Paul7; Mol, Hans G. J.7; Ritsema, Coen J.1; Geissen, Violette1,8 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 572页码:301-311 |
| 关键词 | Glyphosate Aminomethylphosphonic acid AMPA Dissipation Kinetic models Loess soil |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2016.07.215 |
| 英文摘要 | The dissipation kinetics of glyphosate and its metabolite aminomethylphosphonic acid (AMPA) were studied in loess soil, under biotic and abiotic conditions, as affected by temperature, soil moisture (SM) and light/darkness. Nonsterile and sterile soil samples were spiked with 16 mg kg(-1) of glyphosate, subjected to three SM contents (20% WHC, 60% WHC, saturation), and incubated for 30 days at 5 degrees C and 30 degrees C, under dark and light regimes. Glyphosate and AMPA dissipation kinetics were fit to single-first-order (SFO) or first-order-multicompartment (FOMC) models, per treatment combination. AMPA kinetic model included both the formation and decline phases. Glyphosate dissipation kinetics followed SFO at 5 degrees C, but FOMC at 30 degrees C. AMPA followed SFO dissipation kinetics for all treatments. Glyphosate and AMPA dissipation occurred mostly by microbial activity. Abiotic processes played a negligible role for both compounds. Under biotic conditions, glyphosate dissipation and AMPA formation/dissipation were primarily affected by temperature, but also by SM. Light regimes didn't play a significant role. Glyphosate DT50 varied between 1.5 and 53.5 days, while its DT90 varied between 8.0 and 280 days, depending on the treatment. AMPA persisted longer in soil than glyphosate, with its DT50 at 30 degrees C ranging between 26.4 and 44.5 days, and its DT90 between 87.8 and 148 days. The shortest DT50/DT90 values for both compounds occurred at 30 degrees C and under optimal/saturatedmoisture conditions, while the largest occurred at 5 degrees C and reaching drought stress conditions. Based on these results, we conclude that glyphosate and AMPA dissipate rapidly under warm and rainy climate conditions. However, repeated glyphosate applications in fallows or winter crops in countries where cold and dry winters normally occur could lead to on-site soil pollution, with consequent potential risks to the environment and human health. To our knowledge, this study is the first evaluating the combined effect of temperature, soil moisture and light/dark conditions on AMPA formation/dissipation kinetics and behaviour. (C) 2016 Elsevier B.V. All rights reserved. |
| 资助项目 | Fundacao para a Ciencia e a Tecnologia - Portugal[SFRH/BD/81944/2011] ; EU-project Coroado[FP7-ENV-2011] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000387807200031 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/6]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Bento, Celia P. M. |
| 作者单位 | 1.Wageningen Univ, Soil Phys & Land Management, POB 47, NL-6700 AA Wageningen, Netherlands 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China 3.Wageningen Univ, Biometris, POB 100, NL-6700 AC Wageningen, Netherlands 4.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 5.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 6.Minist Educ, Yangling 712100, Shaanxi, Peoples R China 7.RIKILT Wageningen UR, POB 230, NL-6700 AE Wageningen, Netherlands 8.Univ Bonn, Inst Crop Sci & Resources Conservat INRES, D-53115 Bonn, Germany |
| 推荐引用方式 GB/T 7714 | Bento, Celia P. M.,Yang, Xiaomei,Gort, Gerrit,et al. Persistence of glyphosate and aminomethylphosphonic acid in loess soil under different combinations of temperature, soil moisture and light/darkness[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,572:301-311. |
| APA | Bento, Celia P. M..,Yang, Xiaomei.,Gort, Gerrit.,Xue, Sha.,van Dam, Ruud.,...&Geissen, Violette.(2016).Persistence of glyphosate and aminomethylphosphonic acid in loess soil under different combinations of temperature, soil moisture and light/darkness.SCIENCE OF THE TOTAL ENVIRONMENT,572,301-311. |
| MLA | Bento, Celia P. M.,et al."Persistence of glyphosate and aminomethylphosphonic acid in loess soil under different combinations of temperature, soil moisture and light/darkness".SCIENCE OF THE TOTAL ENVIRONMENT 572(2016):301-311. |
入库方式： OAI收割
来源：武汉植物园
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