Crop growth and soil water balance modeling to explore water management options

Crop growth and soil water balance modeling to explore water management options
Author: Ines, A. V. M.Droogers, P.Makin, I. W.Das Gupta, A.
Publisher: IWMI
Total Pages: 35
Release: 2001
Genre: Crops
ISBN: 9290904585

The study was on the performance of the decision support system for agrotechnology transfer (DSSAT) and the soil water atmosphere plant (SWAP) under an acid sulphate soil. The comparison of these models was done as a prerequisite to the selection of an appropriate model, which is capable of simulating water management scenarios, water balance and crop growth, to be coupled with an adaptive optimization algorithm that can be used to explore water management options.

Modeling Methods and Practices in Soil and Water Engineering

Modeling Methods and Practices in Soil and Water Engineering
Author: Balram Panigrahi
Publisher: Innovations in Agricultural &
Total Pages: 0
Release: 2016
Genre: Technology & Engineering
ISBN: 9781771883269

Chapter 8: Climate Change Impacts on Planning and Management of Water Resources -- Chapter 9: Remote Sensing and GIS Applications for Water Resources Planning in Micro-Watershed -- Chapter 10: Water Productivity of Rice Under Deficit Irrigation -- Chapter 11: Performance of Plantation Crops Under Conservation Trenches -- Chapter 12: Water Requirement of Crops

Simulation Model of the Water Balance of a Cropped Soil Providing Different Types of Boundary Conditions (SWATRE)

Simulation Model of the Water Balance of a Cropped Soil Providing Different Types of Boundary Conditions (SWATRE)
Author: C. Belmans
Publisher:
Total Pages: 0
Release: 1981
Genre:
ISBN:

In the present program, SWATRE(-xtended) the following types of conditions at the bottorn of the system can be used: - groundwater level; -flux from the saturated zone (prescribed); the groundwater level is computed; - flux from the saturated zone (calculated as the s~m of the flux towards ditches and the flux of deep percolation); the groundwater level is computed; - flux from the saturated zone (calculated with a flux - groundwater level relationship); the groundwater level is computed; - pressure head of bottorn compartment; - zero flux at the bottorn (of an unsaturated soil profile); i. e, when an impermeable layer is present; - free drainage at the bottorn (unit hydraulic gradient; unsaturated soil profile).

Estimating Productivity of Water at Different Spatial Scales Using Simulation Modeling

Estimating Productivity of Water at Different Spatial Scales Using Simulation Modeling
Author: Peter Droogers
Publisher: IWMI
Total Pages: 25
Release: 2001
Genre: Hydrologic models
ISBN: 9290904313

A clear understanding of the current water balance is required to explore options for water saving measures. However, measurement of all the terms in the water balance is infeasible in terms of spatial and temporal scale, but hydrological simulation models can fill the gap between measured and required data. For a basin in Western Turkey, simulation modeling at three different scales, field, irrigation scheme and basin scale, was performed to obtain all terms of the water balance. These water balance numbers were used to calculate the Productivity of Water at the three spatial levels distinguished to assess the performance of the systems.

Soil Water Models

Soil Water Models
Author: R. DeJong
Publisher: Research Branch, Agriculture Canada
Total Pages: 46
Release: 1984
Genre: Agriculture
ISBN: