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Marta Colombo¹, Julien Boulange², W Martin Williams³

¹Department of International Environmental and Agricultural Sciences, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan; Department of Agricultural and Environmental Sciences - Production, Territory, Agroenergy (DISAA), University of Milan, Italy.

The Science of the total environment

|October 3, 2024

概括

米水质 (RICEWQ) 模型在校准后准确模拟了日本大米田中的除草剂命运. 优化水资源管理可以显著减少来自大米种植系统的农药损失.

科学领域:

环境科学环境科学
农业科学农业科学
水质建模水质建模

背景情况:

农药监测和建模对于监管过程至关重要,因为人们担心地表水污染.
米水质 (RICEWQ) 模型在美国广泛用于在田环境中预测农药命运和运输.
对于RICEWQ模型在日本的适用性及其在日本农业条件下的表现,需要进行彻底的评估.

研究的目的:

评估RICEWQ模型在模拟日本水和土壤中美酸盐和前提的命运和运输方面的能力.
在日本条件下使用实地实验数据来评估模型的性能.
调查改进的水资源管理策略的潜力,以尽量减少除草剂的损失.

主要方法:

利用来自日本的实地实验数据来评估RICEWQ模型的模拟准确性.
评估了该模型在预测在水和土壤中的两种除草剂 (美芬酸盐和前提) 的每日度方面的表现.
实施了校准框架以提高模拟准确性,并分析了水资源管理对除草剂损失的影响.

主要成果:

校准的RICEWQ模型在模拟除草剂在水和土壤中的命运和运输方面表现出很好的性能 (纳什-萨特克利夫效率≥0.725).
该模型在应用后的最初三天内始终低估了在水中的除草剂度峰值.
模拟表明,大约50%的应用除草剂从米系统中消失;改善的水或储存可以将这种损失减少到10%以下.

结论:

RICEWQ模型具有较小的农药特异性校准和简单的校准框架,适用于日本水条件,性能优异.
水资源管理策略,如延长水储期或增加储存深度,可以有效地减少除草剂流失.
调查结果支持在日本采用RICEWQ模型进行监管,并强调综合水资源管理对环境保护的重要性.

关键词:

他们的命运和运输.在除草剂度度.这是一个RICEWQ模型.一个大米田的田.模拟模型的模拟模型.

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