• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >LINKFLOW, a linked saturated-unsaturated water flow computer model for drainage and subirrigation.
【24h】

LINKFLOW, a linked saturated-unsaturated water flow computer model for drainage and subirrigation.

机译：LINKFLOW，一种用于排水和次灌水的链接的饱和-不饱和水流量计算机模型。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A computer simulation model, LINKFLOW, has been developed to simulate the movement of water during various water table management practices, such as subsurface drainage, controlled drainage and subirrigation. Water movement is simulated to, or from, a buried tile drainage system through a heterogeneous and anisotropic soil to a zone of water extraction by plant roots and the atmosphere. The computer package links a newly-developed one-dimensional unsaturated ground water flow model to a three-dimensional saturated water flow model that was modified for the linkage and for simulating water flow under different water table management systems and varying climatic conditions. The movement of water is determined for a region of the field and the model can show the effectiveness of a water table management scheme to meet moisture conditions for crop growth for a wide range of soil, topographical, drain layout and weather conditions. LINKFLOW was validated and verified with measurements on subsurface drainage, controlled drainage and subirrigation systems in a corn field in southwestern Quebec. The model provides a powerful tool for the design and evaluation of water table management systems, and it can assist in developing control strategies for efficient management of water resources. LINKFLOW is unique among soil water models for the following features: (1) it can be used to simulate with varying topography; (2) it determines 3-D flows from drains in a heterogeneous, anisotropic soil; (3) it presents results in tabular format, contour map format, or 3-D surface format; and (4) it contains software routines for automated control in subirrigation. The formation of the conceptual model, numerical relations, methods of solution, validation, field verification and examples are presented.
机译：已开发出一种计算机模拟模型LINKFLOW，以模拟各种地下水位管理实践（例如地下排水，受控排水和地下灌溉）中的水流。模拟水流向或从地下瓦排水系统穿过异质各向异性土壤到植物根部和大气中的水提取区域，或从其中渗出。该计算机程序包将新开发的一维非饱和地下水流模型链接到三维饱和水流模型，并对其进行了修改，以便在不同的地下水位管理系统和不同的气候条件下进行链接并模拟水流。确定了田间区域的水流，该模型可以显示出一种地下水位管理方案的有效性，该方案可以满足多种土壤，地形，排水渠布局和天气条件下作物生长的水分条件。通过对魁北克西南部玉米田的地下排水，受控排水和地下灌溉系统进行测量，对LINKFLOW进行了验证和验证。该模型为水位管理系统的设计和评估提供了强大的工具，并且可以帮助开发控制策略以有效管理水资源。 LINKFLOW在土壤水模型中具有以下特征是唯一的：（1）可用于模拟变化的地形； （2）确定来自异质各向异性土壤中排水沟的3-D流量； （3）以表格格式，等高线图格式或3-D表面格式显示结果； （4）它包含用于子灌溉中自动控制的软件例程。介绍了概念模型的形成，数值关系，求解方法，验证，现场验证和实例。

著录项

  • 作者

    Havard, Peter Lorne.;

  • 作者单位

    McGill University (Canada).;

  • 授予单位 McGill University (Canada).;
  • 学科 Engineering Agricultural.
  • 学位 Ph.D.
  • 年度 1994
  • 页码 247 p.
  • 总页数 247
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号