Geographic information system–assisted site quality assessment for hazelnut cultivation using multi-criteria decision analysis in the Black Sea region, Turkey

Tercan, Emre; Dengi̇z, Orhan; Özkan, Barış; Dereli̇, Mehmet Ali; Öztekin, Yeşim Benal

doi:10.1007/s11356-021-18127-5

Cited by 16 publications

(6 citation statements)

References 78 publications

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“…Hazelnut cultivation is growing globally due to increased nut demand (Tercan et al, 2022). With its potential to sequester atmospheric carbon, ability to stabilize the agro-ecosystem, and economic benefit, hazelnut is an important horticultural crop in climate-vulnerable countries like Bhutan.…”

Section: Dicussionmentioning

confidence: 99%

Impacts of Climate Change on Hazelnut (Corylus avellane L.) Cultivation in Bhutan

Nepal

Tashi

Sherub

et al. 2022

vjas

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This study was conducted to evaluate the factors contributing to the spatial distribution of European hazelnut (Corylus avellane L.) in Bhutan and determine the suitable areas for cultivation of the crop in the near future (2040-2060) and distant future (2060-2080) under different climate scenarios of Representative Concentration Pathway (RCP) 2.6 and RCP 4.5 in Bhutan. The environmental layers were obtained from WorldClim and processed in ArcGIS and R software prior to running the model in MaxENT. The multicollinearity test showed six bioclimatic factors and three topographical factors contributing to the distribution of European hazelnut in Bhutan. The findings indicated that approximately 10,744.8 sq. km is potential for hazelnut crop cultivation in Bhutan, with Wangduephodrang District harboring the highest area of 1,227.9 sq. km (11.4%) and Gasa district the least at 130 sq. km. The primary factors affecting climate suitability of European hazelnut were elevation, contributing 87.9%, followed by Bio3 (3.7%), BIO2 (3%), and Bio1 (2.5%), and the least factors were Bio15 and aspect at 0.1% each. The model showed that the most suitable elevation for the growth of hazelnut ranges from 1500-1900 masl. The suitability area for the crop projected under the RCP 2.6 and RCP 4.5 scenarios showed a decline in the near future (2040-2060) in the southern part of the country and a slight increase in the distant future (2061-2080) in Central, Eastern, and Western Bhutan. Therefore, there is an urgent need for climate risk assessment, community-based mitigation measures, and spatial monitoring techniques on agriculture crops in Bhutan.

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Section: Dicussionmentioning

confidence: 99%

Impacts of Climate Change on Hazelnut (Corylus avellane L.) Cultivation in Bhutan

Nepal

Tashi

Sherub

et al. 2022

vjas

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“…The European hazelnut (Corylus avellana L.) is a perennial crop adapted to specific locations with humid and temperate conditions in relation to its regular water demand [6,8]. The main hazelnut-producing countries are Turkey, Italy, the United States of America, Azerbaijan, Georgia, Spain, and China [10,11]. Its total cultivated area in the world is about 660,000 ha, with an average world annual production of about 865,000 t (in-shell hazelnuts), showing an increasing trend of geographical expansion caused by strong demand from the confectionery industry [12].…”

Section: Introductionmentioning

confidence: 99%

“…These overlapping processes make the availability of water a priority to overcome physiological competition between different organs, especially in relation to the cultivar and the growing environment. During the fertilization/ripening period of hazelnut (from May to August/September), wind, high summer temperatures, and drought adversely affect the annual shoot development, flower bud formation, and internal development of fruits [10]. Consequently, even slight water stress during the sensitive period can markedly reduce the final yield [15].…”

Section: Introductionmentioning

confidence: 99%

“…Considering that precipitation plays a crucial role in the availability of the water supply for hazelnut orchards located in central Italy [10], the aims of this study were to analyze the effect of climate change on the climatic parameters of hazelnut growth (such as chilling requirements, precipitation, and temperatures) and on hazelnut watering requirements. Thus, the precipitation distribution along the years, the SPI, and the influence of the temperature were evaluated to assess the water demands.…”

Section: Introductionmentioning

confidence: 99%

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Trend Analysis of Different Climate Parameters and Watering Requirements for Hazelnut in Central Italy Related to Climate Change

Vinci

Lena²,

Portarena

et al. 2023

Horticulturae

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In this study, the effects of climate change on the irrigation water requirement of hazelnut trees were investigated in Central Italy. The meteorological variables considered were precipitation, temperature, chilling units, and the Standardized Precipitation Index (SPI) in Central Italy. The hydrological variables were the reference evapotranspiration (ET0) and the water requirement based on soil water balance. Climate data were collected from eight meteorological stations for the period 1974–2021, and ET0 was estimated by the Hargreaves and Samani equation. The SPI index was calculated for a four-month time scale corresponding to the hazelnut growing season (April–August). A statistical analysis of the trends of the variables considered was conducted. The results showed an increasing trend for temperature, ET0, and water requirements, while a decreasing trend was shown for the chilling units. No significant trends were detected for precipitation and SPI.

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“…Hazelnut cultivation in Turkey is primarily concentrated between latitudes 40–41° and longitudes 37–42°. The coastal regions along the Black Sea offer particularly favorable ecological conditions for hazelnut production within this geographical range [ 14 ]. Turkey holds the leading position in hazelnut production, contributing to 62% of the global production with an annual output of approximately 665,000 tons.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Altitude on Phenolic, Antioxidant and Fatty Acid Compositions of Some Turkish Hazelnut (Coryllus avellana L.) Cultivars

et al. 2023

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Turkey is the leading producer and exporter of hazelnuts, producing approximately 64% of global hazelnut production. This research investigated the effects of cultivars and altitude on the phenolic, antioxidant, and fatty acid compositions of five hazelnut cultivars grown at three different altitudes, 100 m, 350 m, and 800 m, in Ordu province, one of the territories that produce the most hazelnuts. The results showed that the cultivar and location significantly affected phenolic compounds, antioxidant activity, and fatty acid (FA) content. The lowest (2.30 mg/kg-Yağlı) and highest (21.11 mg/kg-Kara) gallic acids were obtained at 100 m. The highest total phenolic content and antioxidant activity were found in the nuts grown at 350 m in the Kara and Palaz cultivars, at 100 m in the Yağlı and Sivri cultivars, and at 800 m in the Çakıldak cultivar. Oleic acid was the predominant FA in the cultivars and possessed a diverse trend according to the altitude and cultivar, ranging from 76.04% to 84.80%, increasing with altitude in all cultivars except Çakıldak. Palmitic acid was the predominant saturated FA followed by stearic acid, which significantly varied according to the elevations. This study suggests that the responses of hazelnuts to altitude depend on the cultivar; hence, a proper approach to producing nuts containing more phenolic, fatty acids, and antioxidant activity includes choosing a suitable cultivar for a specific elevation.

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Geographic information system–assisted site quality assessment for hazelnut cultivation using multi-criteria decision analysis in the Black Sea region, Turkey

Cited by 16 publications

References 78 publications

Impacts of Climate Change on Hazelnut (Corylus avellane L.) Cultivation in Bhutan

Impacts of Climate Change on Hazelnut (Corylus avellane L.) Cultivation in Bhutan

Trend Analysis of Different Climate Parameters and Watering Requirements for Hazelnut in Central Italy Related to Climate Change

The Effect of Altitude on Phenolic, Antioxidant and Fatty Acid Compositions of Some Turkish Hazelnut (Coryllus avellana L.) Cultivars

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