Water balance model for small-scale water harvesting systems

I. Sanchez-Cohen, V. L. Lopes, Donald C Slack, M. M. Fogel

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

This paper describes a simple, few-parameters simulation model for a water harvesting-strip farming system. The model includes runoff threshold functions for different soil types, and for different initial soil water contents. The evapotranspiration component of the model accounts for dynamic root water extraction using regression equations that correlate canopy cover with root growth as a function of time. The model is simple to operate and uses readily available inputs. It can work with several crops when leaf area indices and crop stage coefficients are provided. The agreement between simulation outputs and field-observed data indicates that the model accurately describes the water balance within the system. The model is then recommended for obtaining preliminary design of water harvesting systems. A FORTRAN77 source code has been written for the simulation procedure.

Original languageEnglish (US)
Pages (from-to)123-127
Number of pages5
JournalJournal of Irrigation and Drainage Engineering
Volume123
Issue number2
StatePublished - Mar 1997

Fingerprint

water harvesting
water balance
water budget
Water
crops
hydrologic models
dynamic models
Soil
leaf area index
water
Crops
evapotranspiration
soil water content
soil types
root growth
simulation models
farming systems
canopy
simulation
Soils

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Civil and Structural Engineering
  • Water Science and Technology

Cite this

Water balance model for small-scale water harvesting systems. / Sanchez-Cohen, I.; Lopes, V. L.; Slack, Donald C; Fogel, M. M.

In: Journal of Irrigation and Drainage Engineering, Vol. 123, No. 2, 03.1997, p. 123-127.

Research output: Contribution to journalArticle

Sanchez-Cohen, I, Lopes, VL, Slack, DC & Fogel, MM 1997, 'Water balance model for small-scale water harvesting systems', Journal of Irrigation and Drainage Engineering, vol. 123, no. 2, pp. 123-127.
Sanchez-Cohen, I. ; Lopes, V. L. ; Slack, Donald C ; Fogel, M. M. / Water balance model for small-scale water harvesting systems. In: Journal of Irrigation and Drainage Engineering. 1997 ; Vol. 123, No. 2. pp. 123-127.
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