Influence of El Niño-Southern oscillation (ENSO) on agroclimatic zoning for tomato in Mozambique

Gelcer, Eduardo; Fraisse, Clyde W.; Zotarelli, Lincoln; Stevens, Forrest R.; Perondi, Daniel; Barreto, Daniel D.; Malia, Hipólito A.; Ecole, Carvalho Carlos; Montone, Verona; Southworth, Jane

doi:10.1016/j.agrformet.2017.10.002

Cited by 30 publications

(20 citation statements)

References 12 publications

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“…ENSO plays a key role to define irrigation needs from February to April. Before February, the conditions are not proper for tomato crop development independently on the ENSO phase [3], and after April, the conditions are similar for all ENSO phases. Due to warmer conditions during El Niño, the irrigation needs are higher than during La Niña cycles and long-term averages.…”

Section: Resultsmentioning

confidence: 92%

“…The tool was created based on tools available on AgroClimate Mozambique [3,16], on the AgroClimate version for the Southeast USA [9], and on FAWN [40]. Moreover, the creation of this tool considered suggestions from growers and extension agents from Mozambique, from researchers from the Mozambique Agricultural Research Institute (IIAM), and from the University of Florida.…”

Section: Resultsmentioning

confidence: 99%

“…For most areas in Mozambique, 90% of the rain occurs from November to March. However, the main tomato production season extends from March to October, which is the period with proper air temperatures for the crop development [3]. Therefore, irrigation is an essential practice for tomato production in the country.…”

Section: Introductionmentioning

confidence: 99%

“…Since growers cannot modify the weather conditions by modifying the microenvironment (e.g., cultivation under high tunnels) to avoid its variability, they have to understand how the variability occurs to benefit from it and to minimize its negative effects [9]. The El Niño-Southern Oscillation is the main phenomenon influencing climate variability around the world [9][10][11][12][13] and in Mozambique [3,14,15]. In Mozambique, the warm phase of ENSO (El Niño) is related to drier and warmer conditions in most parts of the country from December to May, while the cold phase of ENSO (La Niña) has the opposite effects during the same period [16].…”

Section: Introductionmentioning

confidence: 99%

“…Few authors have reported the effects of ENSO on horticultural production in Africa in general, and in Mozambique in particular. ENSO phenomenon has greater impact on tomato crop planting date during the Southern hemisphere fall and spring seasons than during the winter and summer [3]. While ENSO influences the weather patterns during the summer, the air temperature and rainfall amounts are excessively high for tomato production, independently of the ENSO phase.…”

Section: Introductionmentioning

confidence: 99%

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A Smart Irrigation Tool to Determine the Effects of ENSO on Water Requirements for Tomato Production in Mozambique

Gelcer

Fraisse

Zotarelli

et al. 2018

Water

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Irrigation scheduling is used by growers to determine the right amount and timing of water application. In most parts of Mozambique, 90% of the total yearly precipitation occurs from November to March. The El Niño Southern Oscillation (ENSO) phenomenon influences the climate in Mozambique and affects the water demand for crop production. The objectives of this work were to quantify the effects of ENSO phenomenon on tomato crop water requirements, and to create the AgroClimate irrigation tool (http://mz.agroclimate.org/) to assist farmers in improving irrigation management. This study was based on daily grid-based climate information from 1983 to 2016 from the Climate Forecast System Reanalysis. Daily crop evapotranspiration was calculated by Hargreaves equation and crop coefficients. This tool is available online and considers different planting dates, ENSO phases, and crop growing season lengths. Irrigation needs varied from less than 250 mm per growing cycle during winter to 550 mm during spring. Both El Niño and La Niña influenced the irrigation scheduling, especially from November to March. El Niño periods were related to increased water demand due to drier and warmer conditions, while the opposite was observed for La Niña. The ENSO information might be used to understand climate variability and improve tomato irrigation scheduling in Mozambique.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Smart Irrigation Tool to Determine the Effects of ENSO on Water Requirements for Tomato Production in Mozambique

Gelcer

Fraisse

Zotarelli

et al. 2018

Water

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Spatiotemporal characteristics of regional precipitation events in the Jing‐Jin‐Ji region during 1989–2018

Zhang

Han

Yang

2020

Intl Journal of Climatology

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Concurrent regional precipitation can cause water disasters and have an enormous impact on the environment and society. In the present study, regional precipitation events (RPEs) were computed using daily precipitation records from 1989 to 2018 recorded at 173 meteorological stations in the Beijing–Tianjin–Hebei (Jing‐Jin‐Ji) region. This region is famous for its political and economic status and suffers from numerous water disasters. When more than 5% of stations record over 20 mm precipitation on a specific day, it is termed as an RPE. This study describes the duration, intensity, and coverage area of RPEs in the Jing‐Jin‐Ji region. Moreover, it analyses the region's long‐term spatiotemporal evolution of RPEs to explore more complete precipitation characteristics over the study region. The results reveal that the frequency of RPEs decreased with longer duration, and most RPEs with a rainfall intensity of approximately 10 mm⋅day−1 or covered more than 90% of the stations. The coverage area was positively correlated with duration and intensity. RPEs mainly occurred from June to August, with the average ratio of RPEs' total wet day precipitation (PRCPTOT) to regional PRCPTOT being 0.72. The contribution of RPEs to regional annual precipitation increased significantly after 1997. During the past 30 years, the number of RPEs initially decreased and then increased significantly. During strong El Niño decaying summers, the frequency of RPEs was much higher. The spatial distribution of RPEs was affected by topography, land, and sea locations, with greater frequency in the coastal plains. Approximately 28.8% of the RPEs were accompanied by housing losses, which were highly prone to catastrophe compared to extreme precipitation at individual stations. These findings have the potential to improve evaluations of the impacts of water disasters.

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Molecular detection of benzimidazole resistance levels associated with F167Y and F200Y polymorphisms in Haemonchus contortus of goats from Mozambique

et al. 2018

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Influence of El Niño-Southern oscillation (ENSO) on agroclimatic zoning for tomato in Mozambique

Cited by 30 publications

References 12 publications

A Smart Irrigation Tool to Determine the Effects of ENSO on Water Requirements for Tomato Production in Mozambique

A Smart Irrigation Tool to Determine the Effects of ENSO on Water Requirements for Tomato Production in Mozambique

Spatiotemporal characteristics of regional precipitation events in the Jing‐Jin‐Ji region during 1989–2018

Molecular detection of benzimidazole resistance levels associated with F167Y and F200Y polymorphisms in Haemonchus contortus of goats from Mozambique

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