Agricultural zoning as tool for expansion of cassava in climate change scenarios

Aparecido, Lucas Eduardo de Oliveira; Moraes, José Reinaldo da Silva Cabral de; Meneses, Kamila Cunha de; Lorençone, Pedro Antônio; Lorençone, João Antônio; Souza, Gabriel Henrique de Olanda; Torsoni, Guilherme Botega

doi:10.1007/s00704-020-03367-1

Cited by 13 publications

(10 citation statements)

References 28 publications

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“…In this study, it has been determined that cassava develops in seven life zones with wide ranges of altitude, soil and climatic conditions, which shows its wide adaptability [54]. This observation agrees with Sharkawy and Cadavid [55], who mentions that cassava cultivation worldwide grows in a wide range of conditions from the humid and warm lowland tropics, through the mid-altitude tropics, to the subtropics with cold winters and summer rains; conditions that make it suitable for combating climate change [56,57].…”

Section: Environmental Adaptation Characteristics Of the Cassava Collectionsupporting

confidence: 73%

“…On the other hand, the annual mean temperature range of the collection ranges from 18.4° C to 26° C, which also indicates an important range of adaptation. In short, adaptation characteristics to changes in temperature and precipitation of cassava are highly desirable for a crop that can feed the world population in times of climate change by expanding production areas worldwide [56,57,62].…”

Section: Environmental Adaptation Characteristics Of the Cassava Collectionmentioning

confidence: 99%

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Morphological And Ecogeographic Study Of The Diversity Of Cassava (<em>Manihot esculenta</em> Crantz) In Ecuador

Monteros¹,

Tapia²,

Paredes³

et al. 2021

Preprint

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Cassava (Manihot esculenta Crantz) is a crop of nutritional and economic importance worldwide, cultivated in more than 100 tropical and subtropical countries including Ecuador, traditionally cultivated in its three continental regions: the Amazon, the Coast and in the valleys of the Sierra. The purpose of this study was to characterize 195 accessions from INIAP's Ecuadorian cassava collection through 1) morphological characterization with qualitative and quantitative descriptors; and 2) ecogeographic characterization to know the climatic, geophysical and edaphic conditions in which cassava grows and which environments are frequent or marginal for its cultivation. For the morphological characterization, 27 morphological descriptors were used (18 qualitative and nine quantitative), and for the ecogeographic characterization, 55 variables (41 climatic, two geophysical and 12 edaphic). As a result, four morphological groups and three ecogeographic groups were identified. In the research, morphological variability was evidenced, mainly in descriptors related to the leaf, stems and inflorescences. In addition, it was possible to identify accessions that can adapt to extreme conditions of drought and poor soils, which could be used for improvement.

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Section: Environmental Adaptation Characteristics Of the Cassava Collectionsupporting

confidence: 73%

Section: Environmental Adaptation Characteristics Of the Cassava Collectionmentioning

confidence: 99%

Morphological And Ecogeographic Study Of The Diversity Of Cassava (<em>Manihot esculenta</em> Crantz) In Ecuador

Monteros¹,

Tapia²,

Paredes³

et al. 2021

Preprint

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“…The inconsistency in the rainfall change scenario among the studies is attributed to the sensitivity of rainfall variable to the poor resolutions of GCM (Myo and Zin 2020), differences in the models (Costa et al 2019), and local factors such as orographic, coastal and vegetation effects (Jose et al 2016;David and José 2014). Of course, this is the central reason to have conducted the current study in addition to the peculiar features of the basin such as distinctive bimodal rainfall pattern and the vast water resources developments.…”

Section: Discussionmentioning

confidence: 99%

“…Xueping et al (2018) with their study on Biliu River, China, has shown that climate emission scenarios are closely associated with temperature but not so closely associated with precipitation and runoff; Conde et al (2011) have concluded from his study that confidence on future climate change estimations is greater for temperature than for precipitation; According to the study by Poonia and Rao (2018), rainfall trend during the last 100 years revealed that the summer monsoon rainfall has increased marginally (< 10%) in the southern and eastern parts of the Thar Desert but has already declined by 10-15% in its northwestern part India. A study in Angola by Carvalho et al (2017) has also shown the precipitation projections to be highly variable across the region with the southern region experiencing a stronger decrease in precipitation and (Costa et al 2019), with their study on Recife, Brazil, have emphasized the considerable decrease of rainfall in the rainy season from March to August as a contrast to an increase of rainfall in the dry months, from September to February.…”

Section: Climate and Emission Scenariosmentioning

confidence: 99%

“…Despite the numerous climate change scenario studies mentioned above, it is clearly visible that there exists inconsistency in the rainfall change scenario among different models (Table 1); spatial and temporal variation in the result from a single projection scenario (Carvalho et al 2017;Poonia and Rao 2018); and even seasonal variation from the same study (Costa et al 2019) is very visible in the rainfall change scenario results. This is mainly attributed to the sensitivity of the rainfall variable to local effects of particularly orographic, coastal and vegetation effects in general.…”

Section: Statement Of the Problemmentioning

confidence: 99%

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Climate change scenario analysis for Baro-Akobo river basin, Southwestern Ethiopia

Muleta

2021

Environ Syst Res

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Background Several water resources projects are under planning and implementation in the Baro-Akobo basin. Currently, the planning and management of these projects is relied on historical data. So far, hardly any study has addressed water resources management and adaptation measures in the face of changing water balances due to climate change in the basin. The main bottleneck to this has been lack of future climate change scenario base data over the basin. The current study is aimed at developing future climate change scenario for the basin. To this end, Regional Climate Model (RCM) downscaled data for A1B emission scenario was employed and bias corrected at basin level using observed data. Future climate change scenario was developed using the bias corrected RCM output data with the basic objective of producing baseline data for sustainable water resources development and management in the basin. Result The projected future climate shows an increasing trend for both maximum and minimum temperatures; however, for the case of precipitation it does not manifest a systematic increasing or decreasing trend in the next century. The projected mean annual temperature increases from the baseline period by an amount of 1 °C and 3.5 °C respectively, in 2040s and 2090s. Similarly, evapotranspiration has been found to increase to an extent of 25% over the basin. The precipitation is predicted to experience a mean annual decrease of 1.8% in 2040s and an increase of 1.8% in 2090s over the basin for the A1B emission scenario. Conclusion The study resulted in a considerable future change in climatic variables (temperature, precipitation, and evapotranspiration) on the monthly and seasonal basis. These have an implication on hydrologic extremes-drought and flooding, and demands dynamic water resources management. Hence the study gives a valuable base information for water resources planning and managers, particularly for modeling reservoir inflow-climate change relations, to adapt reservoir operation rules to the real-time changing climate.

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Agroclimatic mapping for olive cultivation in Brazil: pinpointing optimal growing regions

de Oliveira Aparecido,

Torsoni,

de Lima

et al. 2024

J Sci Food Agric

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BACKGROUNDThis research aimed to identify the agroclimatic zones in Brazil, excluding Rio Grande do Sul, that are suitable for olive (Olea europaea L.) cultivation, considering both climatic and topographical factors. Olives require specific conditions: moderate winter temperatures (7–15 °C), warmer summers (25–35 °C) and sufficient water during growth and fruit maturation. They can endure some drought, making them a viable option for agricultural diversification. Using daily meteorological data from 1989 to 2023 from NASA‐POWER, this study analyzed variables like air temperature (minimum and maximum) and rainfall. Key climate variables were the mean air temperature in winter (T_w), spring (T_s), summer (T_su) and autumn (T_a) and total annual precipitation (Prec). Criteria for suitability included: T_w between 5 and 20 °C, T_s between 15 and 23 °C, T_su between 15 and 30 °C, T_a between 15 and 22 °C, annual precipitation over 900 mm and altitude below 900 m. Geographic information system software and Python 3.8 were employed for data analysis and zoning.RESULTSResults indicated that only 1.92% of the analyzed area, mainly in Minas Gerais, was suitable for olive cultivation. High temperatures and low rainfall in Brazil, particularly in the North and Midwest, make 59.56% of the country unsuitable for olive farming. Additionally, 18.58% of the land, mainly in the Northeast, faces challenges due to extreme heat (T_w) and insufficient water supply. © 2023 Society of Chemical Industry.

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Agricultural zoning as tool for expansion of cassava in climate change scenarios

Cited by 13 publications

References 28 publications

Morphological And Ecogeographic Study Of The Diversity Of Cassava (<em>Manihot esculenta</em> Crantz) In Ecuador

Morphological And Ecogeographic Study Of The Diversity Of Cassava (<em>Manihot esculenta</em> Crantz) In Ecuador

Climate change scenario analysis for Baro-Akobo river basin, Southwestern Ethiopia

Agroclimatic mapping for olive cultivation in Brazil: pinpointing optimal growing regions

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