不同非生物和生物因素对金属axyl 和carbofuran 消解的影响。

Influence of different abiotic and biotic factors on the metalaxyl and carbofuran dissipation.

机构信息

Área de Edafoloxía e Química Agrícola, Departamento de Bioloxía Vexetal e Ciencia do Solo, Universidade de Vigo, Facultade de Ciencias, 32004 Ourense, Spain; CITI (Centro de Investigación, Transferencia e Innovación), University of Vigo, Tecnopole, San Cibrao das Viñas, Ourense, Spain.

出版信息

Chemosphere. 2013 Mar;90(10):2526-33. doi: 10.1016/j.chemosphere.2012.10.090. Epub 2012 Dec 3.

DOI:10.1016/j.chemosphere.2012.10.090

PMID:23218413

Abstract

Metalaxyl and carbofuran dissipation was studied in response to different factors (soil bacterial communities, light irradiation, presence of an inorganic culture medium and presence of soil) and combinations of these factors in short-term experiments (48 h). The soil microbial communities have no effect on metalaxyl or carbofuran dissipation in the time scale employed. Light irradiation and soil promote metalaxyl and carbofuran dissipation by photodegradation and adsorption, respectively. However, photodegradation has a stronger effect on metalaxyl and carbofuran dissipation than the adsorption of the pesticides in the soil. The addition of the culture medium have no direct effect on pesticide dissipation, degradation by microbial communities or adsorption but its presence greatly increased photodegradation.

摘要

研究了不同因素（土壤细菌群落、光照、有无无机培养基和土壤）及其组合对金属axyl 和carbofuran 在短期实验（48 小时）中的消解的影响。在所采用的时间尺度上，土壤微生物群落对金属axyl 或 carbofuran 的消解没有影响。光照和土壤分别通过光降解和吸附促进金属axyl 和 carbofuran 的消解。然而，光降解对金属axyl 和 carbofuran 的消解的影响比土壤中农药的吸附更强。培养基的添加对农药的消解、微生物群落的降解或吸附没有直接影响，但它的存在大大增加了光降解。