Comparison of SWAP and FAO Agro-Hydrological Models to Schedule Irrigation of Wine Grapes

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Abstract

This paper compares two agro-hydrological models that are used to schedule irrigation of a typical Mediterranean crop. In particular, a comparison between the Food and Agriculture Organization (FAO) model, which uses a black box approach, and the soil-water-atmosphere-plant (SWAP) model, which is based on the numerical analysis of Richards' equation, are shown for wine grape. The comparison was carried out for the 2005 and 2006 irrigation seasons and focused on hydrological balance components and on soil water contents. Next, the ordinary scheduling parameters were identified so that the performance of the two models, which aimed to evaluate the seasonal water requirements and the irrigation times, could be assessed. In the validation phase, both of the models satisfactorily simulated the soil water content, and comparable values of cumulative evapotranspiration were obtained. With the goal of recognizing the crop water stress condition in the field, the original algorithm of the FAO model was modified. This research provided evidence of how the two agrohydrological models, although characterized by different approaches in modeling the phenomena, showed a similar behaviour when used for scheduling irrigation under soil water deficit conditions.
Lingua originaleEnglish
pagine (da-a)581-591
Numero di pagine11
RivistaJOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING
Volume138
Stato di pubblicazionePublished - 2012

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Food and Agriculture Organization
Edible Plants
wine grapes
Wine
Vitis
hydrologic models
Agriculture
Atmosphere
Irrigation
Appointments and Schedules
Soil
soil water
irrigation
agriculture
Soils
food
Water
atmosphere
Water content
Crops

All Science Journal Classification (ASJC) codes

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

Cita questo

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title = "Comparison of SWAP and FAO Agro-Hydrological Models to Schedule Irrigation of Wine Grapes",
abstract = "This paper compares two agro-hydrological models that are used to schedule irrigation of a typical Mediterranean crop. In particular, a comparison between the Food and Agriculture Organization (FAO) model, which uses a black box approach, and the soil-water-atmosphere-plant (SWAP) model, which is based on the numerical analysis of Richards' equation, are shown for wine grape. The comparison was carried out for the 2005 and 2006 irrigation seasons and focused on hydrological balance components and on soil water contents. Next, the ordinary scheduling parameters were identified so that the performance of the two models, which aimed to evaluate the seasonal water requirements and the irrigation times, could be assessed. In the validation phase, both of the models satisfactorily simulated the soil water content, and comparable values of cumulative evapotranspiration were obtained. With the goal of recognizing the crop water stress condition in the field, the original algorithm of the FAO model was modified. This research provided evidence of how the two agrohydrological models, although characterized by different approaches in modeling the phenomena, showed a similar behaviour when used for scheduling irrigation under soil water deficit conditions.",
keywords = "Agro-hydrological models, FAO 56, Irrigation Scheduling, SWAP, Wine grape.",
author = "Carmelo Agnese and Giuseppe Provenzano and Mario Minacapilli",
year = "2012",
language = "English",
volume = "138",
pages = "581--591",
journal = "JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING",
issn = "0733-9437",

}

TY - JOUR

T1 - Comparison of SWAP and FAO Agro-Hydrological Models to Schedule Irrigation of Wine Grapes

AU - Agnese, Carmelo

AU - Provenzano, Giuseppe

AU - Minacapilli, Mario

PY - 2012

Y1 - 2012

N2 - This paper compares two agro-hydrological models that are used to schedule irrigation of a typical Mediterranean crop. In particular, a comparison between the Food and Agriculture Organization (FAO) model, which uses a black box approach, and the soil-water-atmosphere-plant (SWAP) model, which is based on the numerical analysis of Richards' equation, are shown for wine grape. The comparison was carried out for the 2005 and 2006 irrigation seasons and focused on hydrological balance components and on soil water contents. Next, the ordinary scheduling parameters were identified so that the performance of the two models, which aimed to evaluate the seasonal water requirements and the irrigation times, could be assessed. In the validation phase, both of the models satisfactorily simulated the soil water content, and comparable values of cumulative evapotranspiration were obtained. With the goal of recognizing the crop water stress condition in the field, the original algorithm of the FAO model was modified. This research provided evidence of how the two agrohydrological models, although characterized by different approaches in modeling the phenomena, showed a similar behaviour when used for scheduling irrigation under soil water deficit conditions.

AB - This paper compares two agro-hydrological models that are used to schedule irrigation of a typical Mediterranean crop. In particular, a comparison between the Food and Agriculture Organization (FAO) model, which uses a black box approach, and the soil-water-atmosphere-plant (SWAP) model, which is based on the numerical analysis of Richards' equation, are shown for wine grape. The comparison was carried out for the 2005 and 2006 irrigation seasons and focused on hydrological balance components and on soil water contents. Next, the ordinary scheduling parameters were identified so that the performance of the two models, which aimed to evaluate the seasonal water requirements and the irrigation times, could be assessed. In the validation phase, both of the models satisfactorily simulated the soil water content, and comparable values of cumulative evapotranspiration were obtained. With the goal of recognizing the crop water stress condition in the field, the original algorithm of the FAO model was modified. This research provided evidence of how the two agrohydrological models, although characterized by different approaches in modeling the phenomena, showed a similar behaviour when used for scheduling irrigation under soil water deficit conditions.

KW - Agro-hydrological models

KW - FAO 56

KW - Irrigation Scheduling

KW - SWAP

KW - Wine grape.

UR - http://hdl.handle.net/10447/66288

M3 - Article

VL - 138

SP - 581

EP - 591

JO - JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING

JF - JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING

SN - 0733-9437

ER -