Water stress detection under high frequency sprinkler irrigation with water deficit index

Paul D. Colaizzi, Edward M. Barnes, Thomas R. Clarke, Christopher Y. Choi, Peter M Waller, J. Haberland, Michael Kostrzewski

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

A remote sensing package called the agricultural irrigation imaging system (AgIIS) aboard a linear move irrigation system was developed to simultaneously monitor water status, nitrogen status, and canopy density at one-meter spatial resolution. The present study investigated the relationship between water status detected by AgIIS and soil moisture for the 1999 cotton (Gossypium hirsutum, Delta Pine 90b) season in Maricopa, Ariz. Water status was quantified by the water deficit index (WDI), an expansion of the crop water stress index where the influence of soil temperature is accounted for through a linear mixing model of soil and vegetation temperature. The WDI was best correlated to soil moisture through the FAO 56 water stress coefficient Ks model; stability correction of aerodynamic resistance did not improve correlation. The AgIIS did provide field images of the WDI that might aid irrigation scheduling and increase water use efficiency.

Original languageEnglish (US)
Pages (from-to)36-43
Number of pages8
JournalJournal of Irrigation and Drainage Engineering
Volume129
Issue number1
DOIs
StatePublished - Jan 2003

Fingerprint

sprinkler irrigation
Dehydration
water stress
Irrigation
Agricultural Irrigation
irrigation
Water
Soil
water
image analysis
Imaging systems
lateral move irrigation
soil moisture
Soil moisture
soil water
Gossypium
aerodynamics
Food and Agricultural Organization
irrigation scheduling
Temperature

Keywords

  • Remote sensing
  • Sprinkler irrigation
  • Stress

ASJC Scopus subject areas

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

Cite this

Water stress detection under high frequency sprinkler irrigation with water deficit index. / Colaizzi, Paul D.; Barnes, Edward M.; Clarke, Thomas R.; Choi, Christopher Y.; Waller, Peter M; Haberland, J.; Kostrzewski, Michael.

In: Journal of Irrigation and Drainage Engineering, Vol. 129, No. 1, 01.2003, p. 36-43.

Research output: Contribution to journalArticle

Colaizzi, Paul D. ; Barnes, Edward M. ; Clarke, Thomas R. ; Choi, Christopher Y. ; Waller, Peter M ; Haberland, J. ; Kostrzewski, Michael. / Water stress detection under high frequency sprinkler irrigation with water deficit index. In: Journal of Irrigation and Drainage Engineering. 2003 ; Vol. 129, No. 1. pp. 36-43.
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