Modelling evapotranspiration of six irrigated crops under Mediterranean climate conditions

Katerji, Nader; Rana, Gianfranco

doi:10.1016/j.agrformet.2006.04.006

Cited by 116 publications

(80 citation statements)

References 36 publications

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“…This double approach has generated much criticism when it was applied, mainly in areas with arid and semi-arid climate (Testi et al, 2004;Katerji and Rana, 2006;Lovelli et al, 2007;Irmak and Mutiibwa, 2009). Despite this, validation tests of the model CRITERIA on tomato crop in southern Italy highlight a good skill of the model to simulate seasonal evapotranspiration under different irrigation regimes.…”

Section: Discussionmentioning

confidence: 99%

Evapotranspiration of tomato simulated with the CRITERIA model

Campi¹,

Modugno²,

Mastrorilli³

et al. 2014

Ital J Agronomy

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The CRITERIA model simulates crop development and water dynamics in agricultural soils at different spatial scales. The objective of this paper was to test CRITERIA in order to evaluate the suitability of the model as a tool for scheduling irrigation at field scale. The first step of the work was to validate this hypothesis, by means of calibration and validation of CRITERIA on processing tomato in two experimental sites in Southern Italy (Rutigliano and Foggia) for the years 2007 and 2008 under different irrigation regimes. The irrigation treatments were: i) absence of plant water stress (the control treatments set up for both years and sites), ii) moderately stressed (applied in Rutigliano for 2007), and iii) severely stressed (applied in Foggia for 2008). The second step consisted in the evaluation of the expected impact of different irrigation regimes on daily actual evapotranspiration. For model calibration, the 2007 data of the control treatment was used, whereas in the validation process of actual evapotranspiration, the other part of the dataset was used. The observed data were crop evapotranspiration, agrometeorological data, leaf area index, physical-chemical and hydrological characteristics of soil, phenological stages and irrigation management. In order to evaluate model performance we used three statistical indicators to compare simulated and measured values of actual evapotranspiration: the normalised differences of seasonal values are less than 10% for all treatments; the model efficiency index on the typical period between two irrigations (4 days) was positive for all treatments, with the best values in the Foggia site, for both the irrigated and the severely stressed experiments; the relative root mean square error (RRMSE) was smaller than 20% in both the control treatments, but higher than 30% for the stressed treatments. The increase in RRMSE for the stressed experiments is due to CRITERIA simulating a crop in good soil water conditions and, as a consequence, with a larger evapotranspiration demand with respect to water stressed crop.Therefore, we can consider CRITERIA as a suitable tool to manage irrigations of processed tomato, especially for the full irrigation regime; an improvement can be reached by simulating the impact of water stress conditions on the eco-physiological parameters of the crop, in order to use the model also under deficit irrigation regimes. IntroductionItaly is one of the world's major producers of processing tomatoes (Lycopersicum esculentum Mill.), with a production of 600,000 t (in 2009), amounting to 23% of world production. In Puglia, the tomato crop is particularly common, with an incidence of 29% of Italian production (ISTAT, 2012).In southern Italy, the water consumption for this crop was estimated between 400 and 600 mm depending on climatic conditions (Rana et al., 2012). The production, in terms of fresh fruit yield, ranges from 80 to 160 t ha -1 (Rinaldi et al., 2011).Water management is a crucial point for the tomato crops, given the limited availab...

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Section: Discussionmentioning

confidence: 99%

Evapotranspiration of tomato simulated with the CRITERIA model

Campi¹,

Modugno²,

Mastrorilli³

et al. 2014

Ital J Agronomy

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“…This calibration yielded the PM-KP calibration coefficients a and b from the linear regression between r s /r a and r*/r a (Equation (7)) for each site. As it was demonstrated that 20 values of hourly data were sufficient for a reliable calibration in the literature [7,43], this study randomly sampled 40 half-hourly records out of the daytime high quality data (in total, 594 records from the potato site and 361 from the rice site) for calibration. Such calibration procedure was repeated for 1000 runs so as to yield the statistical distributions of a and b, which are shown in Figure 3.…”

Section: Pm-kp Calibration Coefficientsmentioning

confidence: 99%

“…For simplicity's sake, the Food and Agriculture Organization (FAO) suggested that r s can be estimated as a quotient of mean stomatal resistance and active leaf area index [5]. However, this approach (abbreviated as the PM-FAO approach) does not take into account the dependence of r s on meteorological variables [7]. Therefore, Katerji and Perrier [8] proposed a simple linear model (abbreviated as the PM-KP approach in this study), accounting for the influence of meteorological variables and aerodynamic resistance on r s .…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the PM-KP approach takes r a into account as an influencing factor on r s , assuming that r s is a combination of the resistance of all leaves, the resistance of the soil surface, and the resistance between these surfaces and the "big leaf" where r a plays a role. However, some studies noted that the PM-KP model performs well for well-watered crops and for short periods of time within which the surface vegetation and weather do not change much [9], while other studies reported that the PM-KP approach has also been adapted to soil water stress conditions and to surfaces that are fully and partially covered by crops [7]. Most studies on the PM-KP approach in the literature (e.g., [10][11][12][13]) have mainly been focused on well-watered crop surfaces in Mediterranean regions because of the scarce water resources and over irrigation in agriculture managements in these regions [14].…”

Section: Introductionmentioning

confidence: 99%

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Parameterization of Evapotranspiration Estimation for Two Typical East Asian Crops

Zhao

Lüers

2017

Atmosphere

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Estimation of evapotranspiration plays an important role in understanding the water cycle on the earth, especially the water budget in agricultural ecosystems. The parameterization approach of the Penman-Monteith-Katerji-Perrier (PM-KP) model, accounting for the influence of meteorological variables and aerodynamic resistance on surface resistance, was proposed in the literature, but it has not been applied to Asian croplands, and its error and sensitivity have not been reported yet. In this study, the estimation of evapotranspiration on half-hourly scale was carried out for two typical East Asian cropland research sites, and evaluated by using eddy-covariance measurements corrected with the energy-balance-closure concept. Sensitivity coefficients as well as systematic bias and random errors of the PM-KP approach were used to evaluate the model performance. Different distributions of the calibration coefficients between different crops were reported for the first time, indicating that the calibration of this model was more stable for the rice field than for the potato field. The commonly-used parameterization approach suggested by the Food and Agriculture Organization (FAO) was used as reference and was site-specifically optimized. The results suggest that the PM-KP approach would be a better alternative than the PM-FAO approach for estimating evapotranspiration for the flooded rice field, and an acceptable alternative for rain-fed croplands when the soil is well watered and the air is humid during the summer monsoon.

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“…Para a estimativa de ET o em condições de campo, o método de Penman-Monteith, padronizado como recomendado por Allen et al (1998), é utilizado como padrão por diversos pesquisadores (Garcia et al, 2004;Katerji & Rana, 2006;Pereira et al, 2006). Em cultivos protegidos, entretanto, a velocidade do ar está, em geral, abaixo de 0,5 ms -1 na maioria das instalações, mesmo com a utilização de ventilação mecânica (Hanan, 1998).…”

Section: Estimativa Do Coeficiente De Culturaunclassified

Coeficiente de cultura da alface hidropônica baseado no conceito de graus-dia

et al. 2010

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Degree-day-based crop coefficient for hydroponic lettuceThe main objective in this work was to propose the adoption of a thermal crop coefficient by using accumulated degree-days after transplanting to estimate lettuce daily evapotranspiration (ET c ) for the cultivars Grand Rapids, Regina and Great Lakes in a NFT hydroponic system under protected environment. Subsequently, the adjusted model to the observed values of K c was used for estimating ET c during the growing period after transplanting with the following methods: Penman-Monteith parameterized by FAO in 1998 (PMF); Penman-Monteith modified for aerodynamic characteristics in protected environment (PMAP); simplified Penman-Monteith (PMAPS); Priestley-Taylor (PT); solar radiation (RS); and simplified solar radiation (RSS). It was verified that the sigmoid model with four parameters fitted well to observed values of K c ,giving adjusted coefficients of determination of 0,9874, 0,9784 and 0,9767 for cultivars Grand Rapids, Regina and Great Lakes, respectively. As far as daily ET c estimates are concerned, the methods PMF, PMAP and RS presented better statistical performance as compared to the methods PMAPS, PT and RSS, regardless of the evaluated cultivar. However, the method PMF systematically underestimated ET c in the lettuce initial growth period. Coeficiente de cultura da alface hidropônica baseado no conceito de graus-dia O objetivo principal deste trabalho foi propor a adoção de um coeficiente de cultura térmico, com a aplicação do conceito de graus-dia acumulados após o transplantio, para estimativa da evapotranspiração diária (ET c ) dos cultivares de alface Grand Rapids, Regina e Great Lakes em sistema hidropônico do tipo NFT ("nutrient film technique"), em ambiente protegido. Posteriormente, o modelo matemático ajustado aos valores observados de K c (coeficiente de cultura) foi utilizado para a estimativa de ET c no período pós-transplantio por meio dos métodos: Penman-Monteith parametrizado pela FAO, em 1998 (PMF); Penman-Monteith modificado para condições aerodinâmicas, características de ambientes protegidos (PMAP); Penman-Monteith para ambiente protegido simplificado (PMAPS); Priestley-Taylor (PT); Radiação solar (RS); e Radiação solar simplificado (RSS). Verificou-se que o modelo sigmoidal com quatro parâmetros ajustou-se bem aos valores observados de K c , proporcionando coeficientes de determinação ajustados de 0,99, 0,98 e 0,98 para os cultivares Grand Rapids, Regina e Great Lakes, respectivamente. No que se refere às estimativas diárias de ET c , os métodos PMF, PMAP e RS apresentaram melhor desempenho estatístico em relação aos métodos PMAPS, PT e RSS, independentemente do cultivar avaliado. No entanto, o método PMF subestimou sistematicamente a ET c no período inicial de crescimento da alface.Palavras chave: Cultivo protegido, tempo térmico, técnica de circulação laminar de nutrientes.

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Modelling evapotranspiration of six irrigated crops under Mediterranean climate conditions

Cited by 116 publications

References 36 publications

Evapotranspiration of tomato simulated with the CRITERIA model

Evapotranspiration of tomato simulated with the CRITERIA model

Parameterization of Evapotranspiration Estimation for Two Typical East Asian Crops

Coeficiente de cultura da alface hidropônica baseado no conceito de graus-dia

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