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Titolo:
Model for estimating evaporation and transpiration from row crops
Autore:
Ventura, F; Faber, BA; Bali, KM; Snyder, RL; Spano, D; Duce, P; Schulbach, KF;
Indirizzi:
Univ Bologna, Dept Agroenvironm Sci & Technol, I-40126 Bologna, Italy UnivBologna Bologna Italy I-40126 Sci & Technol, I-40126 Bologna, Italy Univ Calif Cooperat Extens, Ventura, CA 92250 USA Univ Calif Cooperat Extens Ventura CA USA 92250 ns, Ventura, CA 92250 USA Univ Calif Cooperat Extens, Holtville, CA USA Univ Calif Cooperat Extens Holtville CA USA at Extens, Holtville, CA USA Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616 Water Resources, Davis, CA 95616 USA Univ Sassari, Dipartimento Econ & Sistemi Arborei, I-07100 Sassari, Italy Univ Sassari Sassari Italy I-07100 stemi Arborei, I-07100 Sassari, Italy CNR Imaes, Agroecosyst Monitoring Inst, I-07100 Sassari, Italy CNR Imaes Sassari Italy I-07100 Monitoring Inst, I-07100 Sassari, Italy Univ Calif Cooperat Extens, Salinas, CA 93901 USA Univ Calif Cooperat Extens Salinas CA USA 93901 ns, Salinas, CA 93901 USA
Titolo Testata:
JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING-ASCE
fascicolo: 6, volume: 127, anno: 2001,
pagine: 339 - 345
SICI:
0733-9437(200111/12)127:6<339:MFEEAT>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
SURFACE RENEWAL ANALYSIS; HEAT-FLUX-DENSITY; WATER-USE; SOIL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Engineering, Computing & Technology
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Ventura, F Univ Bologna, Dept Agroenvironm Sci & Technol, Filippo Re 6, I-40126 Bologna, Italy Univ Bologna Filippo Re 6 Bologna Italy I-40126 Bologna, Italy
Citazione:
F. Ventura et al., "Model for estimating evaporation and transpiration from row crops", J IRR DRAIN, 127(6), 2001, pp. 339-345

Abstract

Accurate estimates of crop evapotranspiration ETc, that quantify the totalwater used by a crop, are needed to optimize irrigation scheduling for horticultural crops and to minimize water degradation. During early growth, accurate assessments of ETc are difficult in vegetable crops because of high soil evaporation due to frequent irrigation. A model to estimate ETc for vegetable crops, using only daily reference evapotranspiration data as an input parameter, was developed. It calculates crop transpiration and soil evaporation based on ground cover and daily radiation intercepted by the canopy. The model uses a two-stage soil evaporation method adapted to conditions of variable reference evapotranspiration. The model was evaluated against data using measurements from two seasons of lettuce crop, two tomato fields in the same season, and one season of broccoli crop production. Using all of the crop data, the root-mean-square error for measured versus modeled daily ETc was 0.72 mm day(-1), indicating that the model works well.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 22:13:01