Abstract
Estimating field crop evapotranspiration (ET c ) along with its components of soil evaporation and crop transpiration is crucial for developing effective agricultural water-saving strategies. This study separately estimated ET c and its components in cotton fields using a SIMDualKc dual crop coefficient model. Data from a 2-year experiment (2010-2011) were used for model calibration and validation analysis. The experimental plots were irrigated at 1.00, 0.85, 0.70, 0.55, and 0.45 of full irrigation amount in north Xinjiang, China. Based on the results, SIMDualKc accurately estimated actual evapotranspiration (ET c adj ) and its components under deficit drip irrigation conditions. Cotton field transpiration accounted for 85.4-94.3% of the ET c in the study area. Although plastic film significantly limited evaporative water loss, the fraction of water loss was still 5.7-14.6% of irrigation water. The adopted estimation method could lead to better understanding of where and when water loss occurs and how much water should be used for maximal benefit. A better understanding of these factors is critical for sustainable agricultural water management practices.
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Claims 4
Claim · model-written summary
SIMDualKc accurately estimated actual evapotranspiration and components under deficit drip irrigation.
- Taxon
- Cotton
Gossypium hirsutumt0 - Outcome
- actual evapotranspiration (ET c adj ) and its componentse0
- Qualifier
- deficit drip irrigation conditionse0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SIMDualKc accurately estimated actual evapotranspiration (ET c adj ) and its components under deficit drip irrigation conditions”
t0“Cotton Fields”
Claim · model-written summary
Cotton transpiration accounted for 85.4-94.3% of evapotranspiration.
- Taxon
- CottonGossypium hirsutume0
- Outcome
- Cotton field transpiratione0
- Value
- 85.4-94.3%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton field transpiration accounted for 85.4-94.3% of the ET c in the study area”
Claim · model-written summary
Plastic film significantly limited evaporative water loss.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- plastic filme0
- Outcome
- evaporative water losse0
- Direction
- limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plastic film significantly limited evaporative water loss”
t0“Cotton Fields”
Claim · model-written summary
Water loss still represented 5.7-14.6% of irrigation water.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- fraction of water losse0
- Value
- 5.7-14.6% of irrigation watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the fraction of water loss was still 5.7-14.6% of irrigation water”
t0“Cotton Fields”
The same questions in other papers
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