Climatic suitability predictions for the cultivation of macadamia and walnuts in existing land-use zones and forest management regimes under climate change scenarios: addressing food security in the mid-hills of Nepal

Barrueto, Andrea Karin; Niraula, Rabin Raj; Merz, Jürg; Pokharel, Bharat K.; Hammer, Thomas

doi:10.1080/14728028.2018.1438930

Cited by 3 publications

(5 citation statements)

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“…Rainfall is a crucial factor that affects cultivations. Water demanding cultivations such as walnuts [77] and chestnuts [78] are mainly situated in areas with average annual According to the analysis of the samples, the most acid soils were located in the local community of Vria, while the most alkaline soils were found in the local community of Elatohori. Moreover, in the local community of Ritini there was a wide range of pH values, from medium acid (under 6.5 pH) in the south part to medium alkaline (above 6.5 pH) in the northern part.…”

Section: Rainfallmentioning

confidence: 99%

“…Rainfall is a crucial factor that affects cultivations. Water demanding cultivations such as walnuts [77] and chestnuts [78] are mainly situated in areas with average annual rainfall more than 500 mm and up to 800 mm [79,80]. Moreover, pomegranates are negatively affected by rainfall during the period of fruit maturity, as the fruit splits [81].…”

Section: Rainfallmentioning

confidence: 99%

“…(1) On limestone AND (∩) (2) pH = 7.2-7.6 AND (∩) (3) Annual total rainfall higher than 450 mm [6,56,59,77,80] Black Chokeberries (Aronia sp. )…”

Section: Crop Type Criteria (Boolean Algebra Expression) Referencesmentioning

confidence: 99%

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Use of GIS in Selecting Suitable Tree Crop Cultivation Sites in Mountainous Less Favoured Areas: An Example from Greece

Tsiaras

Domakinis

2023

Forests

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The aim of this paper is the selection of suitable tree crop cultivation sites in mountainous less favoured areas, as a forest policy measure under the scope of sustainable development. Ten different crop types were proposed as being most suitable in the study area, Pierion Municipal Unit, which is located in the Municipality of Katerini, in the Pieria Prefecture of Greece. In order to determine the most suitable sites for cultivation, data layers that involved the factors of topography, climate, pedology and geology were derived from existing maps and free-of-charge datasets, so that they could be consequently processed with the aid of Geographic Information Systems (GIS). The data processing was performed by following criteria, which were established in accordance with the current literature and were translated into Boolean algebra expressions. The latter helped to identify locations where the values of the factors that were employed were most favourable for the cultivation of walnut trees (Juglans sp.), olive trees (Olea sp.), cherry trees (Prunus sp.), apple (Malus sp.), dogwood trees (Cornus sp.), pomegranate trees (Punica sp.), chestnut trees (Castanea sp.) and other crop types. Moreover, the resulting map indicated that the majority of the suitable sites for cultivation were considered favourable for growing walnut trees (24.9%), followed by cherry trees (19.6%) and olive trees (12.1%). Proposing the most suitable cultivations within the study area contributes to forest policy planning and promotes the sustainable development of mountainous less favoured areas, leading to a more rational management of natural resources, a raised awareness of environmental protection, the maintenance of the local population and income enhancement through the production of high quality crops and sustainable yields.

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Section: Rainfallmentioning

confidence: 99%

“…Rainfall is a crucial factor that affects cultivations. Water demanding cultivations such as walnuts [77] and chestnuts [78] are mainly situated in areas with average annual rainfall more than 500 mm and up to 800 mm [79,80]. Moreover, pomegranates are negatively affected by rainfall during the period of fruit maturity, as the fruit splits [81].…”

Section: Rainfallmentioning

confidence: 99%

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Use of GIS in Selecting Suitable Tree Crop Cultivation Sites in Mountainous Less Favoured Areas: An Example from Greece

Tsiaras

Domakinis

2023

Forests

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“…Increased warming and unreliable rainfall within Malawi will impact the landscape and the livelihoods of many rural populations who depend on agricultural activities [10], [12]. Barrueto et al observed that in Nepal’s highlands, increased temperatures led to changes in cropping systems because of an upward shift in perennial tree crops’ suitability [13]. Like Nepal, climate change will cause shifts in agricultural systems in Malawi.…”

Section: Introductionmentioning

confidence: 99%

“…Other authors have predicted similar shifts in the suitability of macadamia-producing areas caused by the impacts of climate change. Barrueto et al reported an upward shift in suitable areas for macadamia production in Nepal due to the negative impacts of climate warming [13]. Platts et al found that in the United Kingdom, species will shift their distributions polewards and to higher elevations in response to climate change [69].…”

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confidence: 99%

Climatic suitability predictions for the cultivation of macadamia in Malawi using climate change scenarios

Zuza

Araya

Maseyk

et al. 2021

Preprint

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Climate change is altering suitable areas of crop species worldwide, with cascading effects on people and animals reliant upon those crop species as food sources. Macadamia is one of Malawi's most important and profitable crop species. Here, we used an ensemble model approach to determine the current distribution of macadamia producing areas across Malawi in relation to climate. For future distribution of suitable areas, we used the climate outputs of 17 general circulation models (GCM's) based on two climate change scenarios (RCP 4.5 and RCP 8.5). We found that the precipitation of the driest month and isothermality were the climatic variables that strongly influenced macadamia's suitability in Malawi. These climatic requirements were fulfilled across many areas in Malawi under the current conditions. Future projections indicated that large parts of Malawi's macadamia growing regions will remain suitable for macadamia, amounting to 36,910 km2 (39.1%) and 33,511 km2 (35.5%) of land based on RCP 4.5 and RCP 8.5, respectively. Of concern, suitable areas for macadamia production are predicted to shrink by −18% (17,015 km2) and −22% (20,414 km2) based on RCP 4.5 and RCP 8.5, respectively, with much of the suitability shifting northwards. Although a net loss of area suitable for macadamia is predicted, some currently unsuitable areas will become suitable in the future. Notably, suitable areas will increase in Malawi's central and northern regions, while the southern region will lose most of its suitable areas. In conclusion, our study provides critical evidence that climate change will significantly affect the macadamia sub-sector in Malawi. Therefore area-specific adaptation strategies are required to build resilience.

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Climatic suitability predictions for the cultivation of macadamia in Malawi using climate change scenarios.

Junior

Araya

Maseyk

et al. 2021

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Climatic suitability predictions for the cultivation of macadamia and walnuts in existing land-use zones and forest management regimes under climate change scenarios: addressing food security in the mid-hills of Nepal

Cited by 3 publications

References 24 publications

Use of GIS in Selecting Suitable Tree Crop Cultivation Sites in Mountainous Less Favoured Areas: An Example from Greece

Use of GIS in Selecting Suitable Tree Crop Cultivation Sites in Mountainous Less Favoured Areas: An Example from Greece

Climatic suitability predictions for the cultivation of macadamia in Malawi using climate change scenarios

Climatic suitability predictions for the cultivation of macadamia in Malawi using climate change scenarios.

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