1.
Agricultural drainage criteria
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This is a book chapter dealing with drainage systems, effects on agriculture,
design criteria, water balances (budgets), drainage requirements, and examples in various
agro-climatic zones.
The table of contents may be viewed here.
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2.
Data analysis in drainage research
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This is a lecture note with examples of application of four software packages
on this web site (CumFreq, SegReg, EnDrain and RainOff) and other analysis topics.
View table of contents here.
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3.
Energy balance of groundwater flow
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This is copy of an article published earlier. It gives physical
theory of groundwater hydraulics.
View abstract.
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4.
Application of the energy balance of groundwater flow to drains and ditches
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This is an article giving the mathematical theory and examples of groundwater movement
and seepage used in the EnDrain program (see Software on this website).
(view abstract)
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5.
Well spacing equations for subsurface drainage of
agricultural land by pumped wells
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This paper can be used as a manual of the WellDrain program (see Software page).
For information on well pumping tests for aquifer properties visit the same page.
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6.
Determining hydraulic conductivity of soils
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This is a book chapter dealing with the determination of the saturated
hydraulic conductivity or permeability of soils using small and large scale methods
The table of contents may be viewed here.
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7.
SaltMod manual
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This manual gives a description of the Saltmod model (see Software page) for the leaching (flushing)
of saline (salt affected) soils, including its principles, user menu, and case studies.
See table of contents
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8.
SaltMod application
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This is a proceedings paper called: "SaltMod, a tool for the interweaving of irrigation and drainage for
soil salinity control".
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9.
SahysMod manual
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This manual gives a description of the SahysMod model (see Software page)
including its principles, user menu, and case studies
SahysMod is a
combination of Saltmod and a mathematical (numerical) groundwater model
simulating flow and salinity in confined, unconfined and semiconfined (leaky) aquifers.
See table of contents
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10.
Effectiveness and social/environmental impacts of
irrigation projects: a critical review
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From: Annual Report 1988, p. 18-34. ILRI, Wageningen, The Netherlands.
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11.
Agricultural land drainage a wider application through
caution and restraint
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From: Annual Report 1991, p. 9 - 21. ILRI, Wageningen, The Netherlands
This article emphasizes environmentally wise use.
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12.
Frequency analysis in hydrology
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This is a book chapter dealing with the cumulative frequency analysis of hydrologic
phenomena including log-normal (lognormal) and Gumbel distributions giving
confidence belts and discussing return periods (recurrence intervals).
The table of contents may be viewed here.
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13.
Regression analysis for water table, soil salinity
plant growth and crop production
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This is a book chapter dealing with the principles of linear regression analysis
(least squares method) including confidence statements and segmented regression using
a breakpoint.
The table of contents may be viewed here.
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For viewing and downloading click on any of the 13 blue titles above you wish to select.
More articles can be found on the FAQ's page.
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