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Computer models for simulating pesticide fate and transport in soil.

机译:用于模拟农药在土壤中的命运和运移的计算机模型。

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摘要

Two different modeling approaches to simulate pesticide fate and transport in soil were investigated in this study. First, a process-based mathematical model, DRAINMOD-P, was developed by combining the attractive features of DRAINMOD and PESTFADE. While DRAINMOD formed the main component to perform hydrological predictions, PESTFADE's pesticide sub-model was used to simulate pesticide fate. The new model was validated against three years of independently collected field data from southern Ontario. Several statistical parameters were calculated to evaluate model performance.;Second, an implicit model, Multivariate Adaptive Regression Splines, MARS, which is also a novel data mining tool, was used to assess pesticide transport. MARS was first validated against the field data on three herbicides, namely, atrazine, metribuzin and metolachlor. DRAINMOD-P and MARS simulations, though impressive, need further validations before they can be recommended for actual real-world use.* (Abstract shortened by UMI.).;*This dissertation is a compound document (contains both a paper copy and a CD as part of the dissertation). The CD requires the following system requirements: Microsoft Office; Adobe Acrobat.
机译:这项研究研究了两种不同的模拟方法来模拟农药在土壤中的去向和迁移。首先,通过结合DRAINMOD和PESTFADE的吸引力,开发了基于过程的数学模型DRAINMOD-P。尽管DRAINMOD构成了进行水文预测的主要组成部分,但PESTFADE的农药子模型却被用来模拟农药的命运。新模型已针对安大略省南部独立收集的三年现场数据进行了验证。计算了几个统计参数以评估模型性能。其次,隐式模型多元自适应回归样条线MARS(也是一种新型的数据挖掘工具)用于评估农药的运输。 MARS首先针对三种除草剂阿特拉津,甲丁净和异丙甲草胺的现场数据进行了验证。 DRAINMOD-P和MARS模拟虽然令人印象深刻,但在被推荐用于实际应用之前,需要进行进一步的验证。*(UMI缩短了摘要。); *本论文是复合文档(包含纸质副本和纸质副本)。 CD作为论文的一部分)。该CD需要满足以下系统要求: Adobe Acrobat。

著录项

  • 作者

    Bera, Pubalee.;

  • 作者单位

    McGill University (Canada).;

  • 授予单位 McGill University (Canada).;
  • 学科 Engineering Agricultural.;Agriculture Soil Science.;Environmental Sciences.
  • 学位 M.Sc.
  • 年度 2003
  • 页码 134 p.
  • 总页数 134
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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