Modeling of runoff water and runoff pesticide concentrations in upland bare soil using improved SPEC model

被引：0
|
作者：
Lam Van Thinh [1 ,2 ]
Yadav, Ishwar Chandra [3 ]
Boulange, Julien [4 ]
Dang Quoc Thuyet [5 ]
Watanabe, Hirozumi [3 ]
机构：
[1] Tokyo Univ Agr & Technol, United Grad Sch Agr Sci, Tokyo, Japan
[2] Can Tho Univ, Coll Environm & Nat Resources, Can Tho City, Vietnam
[3] Tokyo Univ Agr & Technol, Dept Int Environm & Agr Sci, Tokyo, Japan
[4] Natl Inst Environm Sci, Ctr Global Environm Res, 16-2 Onogawa, Tsukuba, Ibaraki, Japan
[5] Univ Tokyo, Grad Sch Agr & Life Sci, Dept Biol & Environm Engn, Tokyo, Japan
来源：
JOURNAL OF PESTICIDE SCIENCE | 2019年 / 44卷 / 3-4期
关键词：
Runoff; pesticide concentration; SPEC model; upland bare soil; GREEN-AMPT; DIAZINON TRANSPORT; CN PARAMETER; VALIDATION; PADDY; RAINFALL; FATE; BASIN; FIELD;
D O I：
10.1584/jpestics.D19-007
中图分类号：
Q96 [昆虫学];
学科分类号：
摘要：
The SPEC model (Predicted Environmental Concentrations in agricultural Soils) was developed and improved for the simulation of pesticide runoff. The model was applied to the Sakaecho upland bare soil field (Tokyo, Japan) to predict runoff water, sediment concentration in runoff water, pesticide concentrations in runoff water, and runoff sediment (clothianidin and imidacloprid) under artificial rainfall conditions. The results showed that the simulated time to first runoff agreed very well with the observed data. The simulated cumulative runoff, sediment yield, and imidacloprid concentration in sediment agreed well with the observed data (Nash-Sutcliffe Efficiency (NSE)>0.75). The simulated runoff rate agreed reasonably well with the observed data (NSE >0.5). The predicted clothianidin concentrations in sediment and in runoff water had acceptable agreement with the observed data (NSE >0). The results implied the model's potential to predict runoff water, sediment yield, and pesticide runoff. (C) Pesticide Science Society of Japan
引用
收藏
页码：148 / 155
页数：8
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