Regional Sustainability最新文献

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Quantifying the impacts of land use/land cover changes on ecosystem service values in the upper Gilgel Abbay watershed, Ethiopia 埃塞俄比亚上Gilgel Abbay流域土地利用/土地覆盖变化对生态系统服务价值的量化影响

Q1 Social Sciences

Regional Sustainability

Pub Date : 2025-02-01 DOI: 10.1016/j.regsus.2025.100197

Wassie Abuhay Aschenefe , Temesgen Gashaw Tarekegn , Betelhem Fetene Admas , Solomon Mulu Tafere

Human well-being and livelihoods depend on natural ecosystem services (ESs). Following the increment of population, ESs have been deteriorated over time. Ultimately, land use/land cover (LULC) changes have a profound impact on the change of ecosystem. The primary goal of this study is to determine the impacts of LULC changes on ecosystem service values (ESVs) in the upper Gilgel Abbay watershed, Ethiopia. Changes in LULC types were studied using three Landsat images representing 1986, 2003, and 2021. The Landsat images were classified using a supervised image classification technique in Earth Resources Data Analysis System (ERDAS) Imagine 2014. We classified ESs in this study into four categories (including provisioning, regulating, supporting, and cultural services) based on global ES classification scheme. The adjusted ESV coefficient benefit approach was employed to measure the impacts of LULC changes on ESVs. Five LULC types were identified in this study, including cultivated land, forest, shrubland, grassland, and water body. The result revealed that the area of cultivated land accounted for 64.50%, 71.50%, and 61.50% of the total area in 1986, 2003, and 2021, respectively. The percentage of the total area covered by forest was 9.50%, 5.90%, and 14.80% in 1986, 2003, and 2021, respectively. Result revealed that the total ESV decreased from 7.42×10⁷ to 6.44×10⁷ USD between 1986 and 2003. This is due to the expansion of cultivated land at the expense of forest and shrubland. However, the total ESV increased from 6.44×10⁷ to 7.76×10⁷ USD during 2003–2021, because of the increment of forest and shrubland. The expansion of cultivated land and the reductions of forest and shrubland reduced most individual ESs during 1986–2003. Nevertheless, the increase in forest and shrubland at the expense of cultivated land enhanced many ESs during 2003–2021. Therefore, the findings suggest that appropriate land use practices should be scaled-up to sustainably maintain ESs.

人类福祉和生计依赖于自然生态系统服务。随着人口的增加，生态环境随着时间的推移而恶化。土地利用/土地覆被变化最终对生态系统的变化产生深远的影响。本研究的主要目的是确定埃塞俄比亚上Gilgel Abbay流域LULC变化对生态系统服务价值（esv）的影响。利用代表1986年、2003年和2021年的三幅Landsat图像研究了LULC类型的变化。利用地球资源数据分析系统（ERDAS） Imagine 2014中的监督图像分类技术对Landsat图像进行分类。基于全球生态服务分类体系，本文将生态服务分为供给服务、调节服务、支持服务和文化服务四大类。采用调整后的ESV系数效益法测量土地利用价值变化对ESV的影响。本研究确定了耕地、森林、灌丛、草地和水体5种土地利用资源类型。结果表明，1986年、2003年和2021年，耕地面积分别占总面积的64.50%、71.50%和61.50%。1986年、2003年和2021年森林覆盖率分别为9.50%、5.90%和14.80%。结果表明，1986 ~ 2003年，ESV总量从7.42×107下降到6.44×107美元。这是由于耕地的扩张以牺牲森林和灌木为代价。2003-2021年，由于森林和灌丛的增加，总ESV从6.44×107增加到7.76×107美元。1986-2003年期间，耕地面积的扩大和森林、灌木林地的减少使生态系统生物量减少最多。然而，在2003-2021年期间，以耕地为代价的森林和灌木的增加增加了许多ESs。因此，研究结果建议应扩大适当的土地使用方法，以可持续地维持生态环境。

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引用次数: 0

Sustainable smart city and Sustainable Development Goals (SDGs): A review 可持续智慧城市与可持续发展目标（sdg）：综述

Q1 Social Sciences

Regional Sustainability

Pub Date : 2025-02-01 DOI: 10.1016/j.regsus.2025.100193

Z. R. M. Abdullah Kaiser , Apu Deb

The rapid urbanization and increasing challenges are faced by cities globally, including climate change, population growth, and resource constraints. Sustainable smart city (also referred to as “smart sustainable city”) can offer innovative solutions by integrating advanced technologies to build smarter, greener, and more livable urban environments with significant benefits. Using the Web of Science (WoS) database, this study examined: (i) the mainstream approaches and current research trends in the literature of sustainable smart city; (ii) the extent to which the research of sustainable smart city aligns with Sustainable Development Goals (SDGs); (iii) the current topics and collaboration patterns in sustainable smart city research; and (iv) the potential opportunities for future research on the sustainable smart city field. The findings indicated that research on sustainable smart city began in 2010 and gained significant momentum in 2013, with China leading, followed by Italy and Spain. Moreover, 59.00% of the selected publications on the research of sustainable smart city focus on SDG 11 (Sustainable Cities and Communities). Bibliometric analysis outcome revealed that artificial intelligence (AI), big data, machine learning, and deep learning are emerging research fields. The terms smart city, smart cities, and sustainability emerged as the top three co-occurring keywords with the highest link strength, followed by frequently co-occurring keywords such as AI, innovation, big data, urban governance, resilience, machine learning, and Internet of Things (IoT). The clustering results indicated that current studies explored the theoretical foundation, challenges, and future prospects of sustainable smart city, with an emphasis on sustainability. To further support urban sustainability and the attainment of SDGs, the future research of sustainable smart city should explore the application and implications of AI and big data on urban development including cybersecurity and governance challenges.

全球城市都面临着快速城市化和日益严峻的挑战，包括气候变化、人口增长和资源约束。可持续智慧城市（也称为“智慧可持续城市”）可以通过整合先进技术，提供创新的解决方案，以建设更智能、更环保、更宜居的城市环境，并带来显著的效益。利用Web of Science （WoS）数据库，本研究考察了可持续智慧城市的主流研究方法和当前研究趋势；（ii）可持续智慧城市的研究在多大程度上符合可持续发展目标（SDGs）；（三）当前可持续智慧城市研究的主题和合作模式；（四）未来可持续智慧城市领域研究的潜在机遇。研究结果表明，可持续智慧城市的研究始于2010年，并在2013年获得了显著的发展势头，其中中国领先，其次是意大利和西班牙。此外，入选的可持续智慧城市研究出版物中，59.00%聚焦于SDG 11（可持续城市和社区）。文献计量分析结果显示，人工智能（AI）、大数据、机器学习、深度学习是新兴的研究领域。“智慧城市”、“智慧城市”和“可持续发展”成为协同出现的前三大关键词，链接强度最高，其次是人工智能、创新、大数据、城市治理、弹性、机器学习和物联网（IoT）等频繁协同出现的关键词。聚类结果表明，当前的研究探索了可持续智慧城市的理论基础、挑战和未来前景，重点关注可持续性。为了进一步支持城市可持续发展和实现可持续发展目标，可持续智慧城市的未来研究应探讨人工智能和大数据在城市发展中的应用和影响，包括网络安全和治理挑战。

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引用次数: 0

Cost and benefit analysis of Climate-Smart Agriculture interventions in the dryland farming systems of northern Ghana 加纳北部旱地农业系统气候智慧型农业干预措施的成本和效益分析

Q1 Social Sciences

Regional Sustainability

Pub Date : 2025-02-01 DOI: 10.1016/j.regsus.2025.100196

Felix KPENEKUU , Philip ANTWI-AGYEI , Fred NIMOH , Andrew DOUGILL , Albert BANUNLE , Jonathan ATTA-AIDOO , Frank BAFFOUR-ATA , Thomas Peprah AGYEKUM , Godfred ADDAI , Lawrence GUODAAR

There is a need for more focus in understanding the economic benefits of Climate-Smart Agriculture (CSA) interventions, particularly in sub-Saharan Africa, where extreme climate events are significantly affecting agriculture and rural livelihoods. This study used the Net Present Value (NPV), Internal Rate of Return (IRR), Benefit-Cost Ratio (BCR), and payback period to evaluate the economic viability of the adopted CSA interventions in the three villages (Doggoh, Jeffiri, and Wulling) of the dryland farming systems of northern Ghana, where CSA interventions were mostly practiced. Data were collected from 161 farm households by the questionnaire survey. The results showed that CSA interventions including livestock-crop integration, mixed cropping, crop rotation, nutrient integration, and tie ridging enhanced crop yield and the household income of smallholder farmers. The five CSA interventions selected by smallholders were in the following order of priority: livestock-crop integration (BCR=2.87), mixed cropping (BCR=2.54), crop rotation (BCR=2.24), nutrient integration (BCR=1.98), and tie ridging (BCR=1.42). Results further showed that livestock-crop integration was the most profitable CSA intervention even under a pessimistic assumption with a long payback period of 5.00 a. Moreover, this study indicated that the implementation of CSA interventions, on average, was relatively profitable and had a nominal financial risk for smallholder farmers. Understanding the economic viability of CSA interventions will help in decision-making process toward selecting the right CSA interventions for resilience development.

需要更加重视了解气候智慧型农业（CSA）干预措施的经济效益，特别是在极端气候事件严重影响农业和农村生计的撒哈拉以南非洲地区。本研究使用净现值（NPV）、内部收益率（IRR）、效益成本比（BCR）和投资回收期来评估加纳北部旱地农业系统中三个村（Doggoh、Jeffiri和Wulling）所采用的CSA干预措施的经济可行性，这些村大多采用CSA干预措施。通过问卷调查对161户农户进行数据收集。结果表明，农牧结合、混作、轮作、养分整合和打结垄作等CSA干预措施提高了小农的作物产量和家庭收入。小农选择的5种CSA干预措施的优先级依次为：畜粮一体化（BCR=2.87）、混作（BCR=2.54）、轮作（BCR=2.24）、养分一体化（BCR=1.98）、打垄（BCR=1.42）。结果进一步表明，即使在5.00年的较长投资回收期的悲观假设下，畜产一体化也是最有利可图的CSA干预措施。此外，本研究表明，实施CSA干预措施平均而言相对有利可图，对小农来说具有名义金融风险。了解CSA干预措施的经济可行性将有助于在决策过程中选择正确的CSA干预措施以促进恢复力的发展。

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引用次数: 0

Green hydrogen production from wind energy in Far Eastern Federal District (FEFD), the Russian Federation 俄罗斯联邦远东联邦区（FEFD）的风能绿色制氢

Q1 Social Sciences

Regional Sustainability

Pub Date : 2025-02-01 DOI: 10.1016/j.regsus.2025.100199

Mihail Demidionov

There is a gradual increase in the proportion of renewable energy sources. Green hydrogen has the potential to become one of the major energy carriers in the future. The Russian Federation, in partnership with countries in the Asia-Pacific region and especially China, has the potential to play a significant role in green hydrogen market. This study assessed the potential of developing green hydrogen energy based on wind power in the Far Eastern Federal District (FEFD) of the Russian Federation. Empirical wind speed data were collected from 20 meteorological stations in 4 regions (Sakhalinskaya Oblast’, Primorskiy Krai, Khabarovskiy Krai, and Amurskaya Oblast’) of the FEFD. The Weibull distribution was used to predict the potential of green hydrogen production. Five different methods (Empirical Method of Justus (EMJ), Empirical Method of Lysen (EML), Maximum Likelihood Method (MLE), Power Density Method (PDM), and Median and Quartiles Method (MQM)) were used to determine the parameters (scape factor and scale factor) of the Weibull distribution. We calculated the total electricity generation potential based on the technical specifications of the three wind turbines: Senvion 6150 onshore, H165-4.0 MW, and Vestas V150-4.2 MW. The results showed that Vladivostok, Pogibi, Ilyinskiy, Yuzhno-Kuril’sk, Severo-Kuril’sk, Kholmsk, and Okha stations had the higher potential of green hydrogen production, of which Vladivostok exhibited the highest potential of green hydrogen production using the wind turbine of H165-4.0 MW, up to 2.56×10⁵ kg/a. In terms of economic analysis, the levelized cost of hydrogen (LCOH) values of lower than 4.00 USD/kg were obtained at Yuzhno-Kuril’sk, Ilyinskiy, Pogibi, and Vladivostok stations using the wind turbine of H165-4.0 MW, with the values of 3.54, 3.50, 3.24, and 2.55 USD/kg, respectively. This study concluded that the FEFD possesses significant potential in the production of green hydrogen and, with appropriate investment, has the potential to become a significant hub for green hydrogen trading in the Asia-Pacific region.

可再生能源比重逐步提高。绿色氢有可能成为未来主要的能源载体之一。俄罗斯联邦与亚太地区国家，特别是中国合作，有潜力在绿色氢市场中发挥重要作用。本研究评估了在俄罗斯联邦远东联邦区（FEFD）开发基于风能的绿色氢能的潜力。经验风速数据采集自俄罗斯远东气象局4个地区（萨哈林斯克州、滨海边疆区、哈巴罗夫斯基边疆区和阿穆尔斯克州）的20个气象站。采用威布尔分布预测绿色制氢潜力。采用Justus经验法（EMJ）、Lysen经验法（EML）、极大似然法（MLE）、功率密度法（PDM）和中位数和四分位数法（MQM） 5种方法确定威布尔分布的参数（景观因子和尺度因子）。我们根据三台风力涡轮机的技术规格计算了总发电潜力：Senvion 6150陆上，H165-4.0 MW和Vestas V150-4.2 MW。结果表明，符拉迪沃斯托克、Pogibi、Ilyinskiy、yuzho - kuril’sk、Severo-Kuril’sk、Kholmsk和Okha站具有较高的绿色制氢潜力，其中符拉迪沃斯托克站使用h161 -4.0 MW风力机的绿色制氢潜力最高，可达2.56×105 kg/a。在经济分析方面，采用H165-4.0 MW风机的南千岛斯克站、伊林斯基站、波吉比站和符拉迪沃斯托克站的氢平化成本（LCOH）值分别为3.54、3.50、3.24和2.55美元/kg，均低于4.00美元/kg。本研究的结论是，FEFD在绿色氢的生产方面具有巨大的潜力，并且在适当的投资下，有可能成为亚太地区绿色氢贸易的重要枢纽。

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引用次数: 0

Unlocking climate change resilience: socioeconomic factors shaping smallholder farmers’ perceptions and adaptation strategies in Mediterranean and Sub-Saharan Africa regions 解锁气候变化适应能力：影响地中海和撒哈拉以南非洲地区小农观念和适应战略的社会经济因素

Q1 Social Sciences

Regional Sustainability

Pub Date : 2025-02-01 DOI: 10.1016/j.regsus.2025.100195

Osama Ahmed , Mourad Faiz , Laamari Abdelali , Safwa Khoali , Cataldo Pulvent , Sameh Mohamed , Mame Samba Mbaye , Thomas Glauben

Climate change poses substantial challenges to agricultural productivity and sustainability, particularly in Mediterranean and Sub-Saharan Africa regions. Local smallholder farmers’ adaptation strategies to climate change are crucial for mitigating these impacts. Therefore, this study investigated the socioeconomic factors influencing smallholder farmers’ perceptions and adaptation strategies to climate change in four countries (Morocco, Egypt, Italy, and Senegal) of Mediterranean and Sub-Saharan Africa regions using a binary logistic regression (BLR) model. The results indicated that educational level, farming experience, agricultural income, farm size, participation in agricultural workshops, and training in Good Agricultural Practices (GAPs) significantly impacted smallholder farmers’ perceptions and adaptation strategies to climate change (such as smallholder farmers adopting drought-tolerant crops). Higher educational level was linked to the greater possibility of smallholder farmers adopting drought-tolerant crops in Italy and Egypt, while gaps in rural education limited the possibility of smallholder farmers adopting drought-tolerant crops in Morocco and Senegal. Farming experience and agricultural income also enhanced the possibility of smallholder farmers adopting drought-tolerant crops, with notable variations across countries due to systemic barriers such as limited infrastructure in Senegal. Larger farm size and participation in agricultural workshops further improved the possibility of smallholder farmers adopting drought-tolerant crops, particularly in Morocco and Egypt. The findings highlighted the importance of tailored interventions and policy measures to support smallholder farmers in effectively responding to the challenges of climate change under diverse agricultural contexts. By understanding the specific needs and circumstances of smallholder farmers in these countries, policymakers can develop more effective adaptation strategies to enhance agricultural resilience and sustainability under the context of climate change.

气候变化对农业生产力和可持续性构成重大挑战，特别是在地中海和撒哈拉以南非洲地区。当地小农适应气候变化的战略对于减轻这些影响至关重要。因此，本研究采用二元logistic回归（BLR）模型研究了影响地中海和撒哈拉以南非洲地区摩洛哥、埃及、意大利和塞内加尔四个国家小农对气候变化认知和适应策略的社会经济因素。结果表明，教育水平、农业经验、农业收入、农场规模、参与农业研讨会和良好农业规范（gap）培训显著影响小农对气候变化的认知和适应策略（如小农种植耐旱作物）。在意大利和埃及，较高的教育水平与小农采用耐旱作物的可能性较大有关，而在摩洛哥和塞内加尔，农村教育的差距限制了小农采用耐旱作物的可能性。农业经验和农业收入也增加了小农种植耐旱作物的可能性，由于塞内加尔基础设施有限等系统性障碍，各国之间存在显著差异。农场规模的扩大和农业车间的参与进一步提高了小农采用耐旱作物的可能性，特别是在摩洛哥和埃及。研究结果强调了有针对性的干预措施和政策措施的重要性，以支持小农在不同农业背景下有效应对气候变化的挑战。通过了解这些国家小农的具体需求和情况，政策制定者可以制定更有效的适应战略，以增强气候变化背景下的农业抵御力和可持续性。

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