水溶性农药稻田流失特性研究  

Loss of water-resolvable pesticides from rice fields

作　　者：沈根祥[1] 黄沈发[1] 陆贻通[2] 张大弟[2] 唐浩[1] 

机构地区：[1]上海市环境科学研究院,上海200233 [2]上海交通大学农业与生物学院,上海201101

出　　处：《农村生态环境》2005年第3期43-46,共4页Rural Eco-Environment

基　　金：上海市环境保护专项基金2002重大科技攻关项目(沪环科攻关-02-03)

摘　　要：通过大田试验和测坑试验,研究了水溶性农药的稻田流失特性及其影响因素,在此基础上得到了杀虫单和乐果的稻田流失量。结果表明:杀虫单的稻田排水流失量为208.0g·hm-2,渗漏流失量为222.0g·hm-2,总流失量为其稻季用量的14.3%;乐果的稻田排水流失量为238.5g·hm-2,渗漏流失量为160.8g·hm-2,总流失量为其稻季用量的13.4%。Through fields-scale experiment and leaching-pond experiment,characteristics of the loss of water-resolvable pesticides from rice fields and their affecting factors were studied.In the experiment,the losses of monosaltap and dimethoate were estimated.The results show that the loss of monosultap by way of drainage and leakage was 208.0 and 222.0 (g·hm^(-2)),respectively,forming a total loss percentage of about 14.3%;while the loss of dimethoate via drainage and leakage was 238.5 and 160.8 g·hm^(-2),respectively,forming a total loss percentage of about 13.4% from the rice fields.

关 键 词：水溶性农药 杀虫单 乐果 稻田 排水 渗漏 流失 降解 

分 类 号：X592[环境科学与工程—环境工程]