生态与农村环境学报2016，Vol.32Issue(5)：837-841,5.DOI:10.11934/j.issn.1673-4831.2016.05.023
3种三唑类杀菌剂的环境降解特性
Degradation of 1, 2, 4-Triazole Fungicides in the Environment
摘要
Abstract
The knowledge of behaviors and fates of 1,2,4⁃triazole⁃typed fungicides in the environment is critical to assess⁃ing their environmental risks. An in⁃laboratory experiment was performed to examine influences of temperature, pH and light on degradation of three kinds of 1,2,4⁃triazole fungicides( epoxiconazole, tebuconazole, and flutriafol) in water and soil. Results show that the photolysis half⁃life of epoxiconazole, tebuconazole, and flutriafol was 0�68, 2�35 and 9�30 h, respectively. Epoxiconazole and tebuconazole were readily photolyzed pesticides, while flutriafol was medium in readiness. In water with pH being 4�0, 7�0 and 9�0 under 25℃,the hydrolysis half⁃life was 120, 131 and 151 d, respectively, for epoxiconazole,and 257, 198 and 187 d for tebuconazole and 204, 182 and 182 d for flutriafol. Hydrolysis of the three types of fungicides was closely related to water pH and their chemical structure. The half⁃lives of epoxiconazole, tebucon⁃azole, and flutriafol were 58�2 to 72�9 days in the red soil of Jiangxi, 182 to 365 days in the paddy soil of Taihu Region and 102 to 161 days in the black soil of Northeast China. The findings of the experiment indicate that epoxiconazole, tebu⁃conazole, and flutriafol all have a long residual period in water and soil, which calls for more attention to their pollution of the environment and monitoring of their application and residues in the environment.关键词
三唑类/降解/氟环唑/戊唑醇/粉唑醇Key words
1,2,4-triazole/degradation/epoxiconazole/tebuconazole/flutriafol分类
资源环境引用本文复制引用
吴文铸,郭敏,孔德洋,许静,单正军..3种三唑类杀菌剂的环境降解特性[J].生态与农村环境学报,2016,32(5):837-841,5.基金项目
中央级公益性科研院所基本科研业务专项（2014－002）；公益性行业（环保）科研专项 （）
