文献类型：期刊文献

英文题名：Environmental behaviors of phoxim with two formulations in bamboo forest under soil surface mulching

作者：Liu, Yihua[1] Ni, Zhanglin[1] Mo, Runhong[1] Shen, Danyu[1] Zhong, Donglian[1] Tang, Fubin[1]

第一作者：刘毅华

通信作者：Tang, FB[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Peoples R China

年份：2015

卷号：35

起止页码：91-100

外文期刊名：JOURNAL OF ENVIRONMENTAL SCIENCES

收录：;EI(收录号：20153601230606);Scopus(收录号：2-s2.0-84940519484);WOS:【SCI-EXPANDED(收录号:WOS:000362982300012)】；

基金：We gratefully acknowledge the financial support from the Applied Research Project in the Public Interest of Zhejiang Province (Nos: 2013C32106, 2015C32071), the Fundamental Research Funds for the Central Non-profit Research Institution of CAF (No. RISF61252), and the Special Fund for Forestry Scientific Research in the Public Interest (No. 201304705). The authors state that there are no conflicts of interest.

语种：英文

外文关键词：Phoxim; Formulation; Residue; Bamboo; Soil surface mulching

摘要：Phoxim (emulsifiable concentrate (EC) and granules (G)) has been widely used in bamboo forests. The persistence and magnitude of phoxim residues in the crop and soil must be investigated to ensure human and environmental safety. The environmental behaviors of the two formulations were investigated in a bamboo forest under soil surface mulching conditions (CP) and non-covered cultivation conditions (NCP). The half-lives of phoxim in soil under the two conditions in soil were 4.1-6.2 days (EC) and 31.5-49.5 days (G), respectively. Phoxim in EC could be leached from the topsoil into the subsoil. A minimized leaching effect was observed for G under NCP. Inversely, an enhanced leaching effect was observed for G under CP. The G formulation resulted in more parent compound (in bamboo shoots) and metabolite (in soil) residues of phoxim than in the case of EC, especially under CP conditions. In addition, the intensity and duration of the formulation effect on soil pH adjustment from G were more obvious than that from EC. Results showed that the environmental behaviors (distribution, degradation, residue) of phoxim in the bamboo forest were significantly influenced by the type of formulation. The prolongation effect from phoxim G might cause persistence and long-term environmental risk. However, bamboo shoot consumption could be considered relatively safe after applying the recommended dose of the two phoxim formulations. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.