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Water Energy Food Nexus in Urbanizing Wetlands: Challenges and Solutions Explored through Choremes and Focus Maps 全文
2024
Dragos Balaican | Katrin Teubner | Iuliana-Mihaela Tudor | Iulian Nichersu | Adrian Burada | Cristian Trifanov | Marian Tudor | Catalina Iticescu | Luminita Moraru | Puiu-Lucian Georgescu
Water Energy Food Nexus in Urbanizing Wetlands: Challenges and Solutions Explored through Choremes and Focus Maps 全文
2024
Dragos Balaican | Katrin Teubner | Iuliana-Mihaela Tudor | Iulian Nichersu | Adrian Burada | Cristian Trifanov | Marian Tudor | Catalina Iticescu | Luminita Moraru | Puiu-Lucian Georgescu
Addressing complex interactions within water, energy, and food (WEF) resources, innovative tools for in-depth analysis and decision-making are imperative. This study introduces chorematic focus maps (CFMs) as a groundbreaking method to visualize and tackle the WEF nexus&rsquo:s complexities, focusing specifically on the Danube Delta Biosphere Reserve (DDBR). By merging geospatial analysis with on-site validation, this research reveals intricate interdependencies within the nexus and positions CFMs as an effective tool for stakeholders. This study adopts a methodological approach that focuses on identifying human activities and evaluating their impacts on the WEF nexus, with the goal of developing practical and grounded strategies for managing these essential resources. By testing this approach within the DDBR, the potential for wider application is demonstrated, offering a promising framework for addressing similar socio-environmental challenges across various regions. Future research directions include refining CFMs&rsquo: precision and practicality through extended fieldwork and stakeholder engagement, testing the framework&rsquo:s adaptability across various locations and nexus dynamics. Additionally, incorporating cutting-edge technologies such as machine learning could provide deeper insights and reinforce CFMs&rsquo: role in decision support for the WEF nexus. Conclusively, this investigation into the WEF nexus through CFMs emphasizes the critical need for strategies that navigate the complexities of environmental management and resource optimization, marking CFMs as a significant tool for both decision-makers and researchers.
显示更多 [+] 显示较少 [-]Water Energy Food Nexus in Urbanizing Wetlands: Challenges and Solutions Explored through Choremes and Focus Maps 全文
2024
Dragos Balaican | Katrin Teubner | Iuliana-Mihaela Tudor | Iulian Nichersu | Adrian Burada | Cristian Trifanov | Marian Tudor | Catalina Iticescu | Luminita Moraru | Puiu-Lucian Georgescu
Addressing complex interactions within water, energy, and food (WEF) resources, innovative tools for in-depth analysis and decision-making are imperative. This study introduces chorematic focus maps (CFMs) as a groundbreaking method to visualize and tackle the WEF nexus’s complexities, focusing specifically on the Danube Delta Biosphere Reserve (DDBR). By merging geospatial analysis with on-site validation, this research reveals intricate interdependencies within the nexus and positions CFMs as an effective tool for stakeholders. This study adopts a methodological approach that focuses on identifying human activities and evaluating their impacts on the WEF nexus, with the goal of developing practical and grounded strategies for managing these essential resources. By testing this approach within the DDBR, the potential for wider application is demonstrated, offering a promising framework for addressing similar socio-environmental challenges across various regions. Future research directions include refining CFMs’ precision and practicality through extended fieldwork and stakeholder engagement, testing the framework’s adaptability across various locations and nexus dynamics. Additionally, incorporating cutting-edge technologies such as machine learning could provide deeper insights and reinforce CFMs’ role in decision support for the WEF nexus. Conclusively, this investigation into the WEF nexus through CFMs emphasizes the critical need for strategies that navigate the complexities of environmental management and resource optimization, marking CFMs as a significant tool for both decision-makers and researchers.
显示更多 [+] 显示较少 [-]‘Kesho’ Scenario Development for Supporting Water-Energy Food Security under Future Conditions in Zanzibar 全文
2024
Rebecca J. S. Newman | Charis Enns | Claudia Capitani | Jessica P. R. Thorn | Colin J. Courtney-Mustaphi | Sam J. Buckton | Eugyen Suzanne Om | Ioan Fazey | Tahir A. Haji | Aziza Y. Nchimbi | Rebecca W. Kariuki | Robert A. Marchant
‘Kesho’ Scenario Development for Supporting Water-Energy Food Security under Future Conditions in Zanzibar 全文
2024
Rebecca J. S. Newman | Charis Enns | Claudia Capitani | Jessica P. R. Thorn | Colin J. Courtney-Mustaphi | Sam J. Buckton | Eugyen Suzanne Om | Ioan Fazey | Tahir A. Haji | Aziza Y. Nchimbi | Rebecca W. Kariuki | Robert A. Marchant
Social-ecological interactions mediate water&ndash:energy&ndash:food security in small developing islands, but community-scale insights are underrepresented in nexus research. These interactions are dynamic in their response to environmental and anthropogenic pressures and need to be understood to inform sustainable land use planning into the future. This study centered on bringing together diverse stakeholders to explore water&ndash:energy&ndash:food futures using the &ldquo:Kesho&rdquo: (meaning &ldquo:tomorrow&rdquo: in Kiswahili) scenario tool for two of the largest islands that comprise the Zanzibar Archipelago. The methodology comprised four core stages: (1) exploration of how past drivers of change impacted water&ndash:energy&ndash:food security: (2) modeling of a Business as Usual Scenario for land cover change: (3) narrative development to describe alternative futures for 2030 based on themes developed at the community scale: and (4) predictions about how narratives would shape land cover and its implications for the nexus. These results were used to model alternate land cover scenarios in TerrSet IDRISI (v. 18.31) and produce visual representations of expected change. Findings demonstrated that deforestation, saltwater incursion, and a reduction in permanent waterbodies were projected by 2030 in a Business as Usual Scenario. Three alternative scenario narratives were developed, these included Adaptation, Ecosystem Management, and Settlement Planning. The results demonstrate that the effectiveness of actions under the scenario options differ between the islands, indicating the importance of understanding the suitability of national policies across considered scales. Synergies across the alternative scenario narratives also emerged, including integrated approaches for managing environmental change, community participation in decision making, effective protection of forests, cultural sensitivity to settlement planning, and poverty alleviation. These synergies could be used to plan strategic action towards effectively strengthening water&ndash:energy&ndash:food security in Zanzibar.
显示更多 [+] 显示较少 [-]‘Kesho’ Scenario Development for Supporting Water-Energy Food Security under Future Conditions in Zanzibar 全文
2024
Rebecca J. S. Newman | Charis Enns | Claudia Capitani | Jessica P. R. Thorn | Colin J. Courtney-Mustaphi | Sam J. Buckton | Eugyen Suzanne Om | Ioan Fazey | Tahir A. Haji | Aziza Y. Nchimbi | Rebecca W. Kariuki | Robert A. Marchant
Social-ecological interactions mediate water–energy–food security in small developing islands, but community-scale insights are underrepresented in nexus research. These interactions are dynamic in their response to environmental and anthropogenic pressures and need to be understood to inform sustainable land use planning into the future. This study centered on bringing together diverse stakeholders to explore water–energy–food futures using the “<i>Kesho</i>” (meaning “tomorrow” in Kiswahili) scenario tool for two of the largest islands that comprise the Zanzibar Archipelago. The methodology comprised four core stages: (1) exploration of how past drivers of change impacted water–energy–food security; (2) modeling of a <i>Business as Usual Scenario</i> for land cover change; (3) narrative development to describe alternative futures for 2030 based on themes developed at the community scale; and (4) predictions about how narratives would shape land cover and its implications for the nexus. These results were used to model alternate land cover scenarios in TerrSet IDRISI (v. 18.31) and produce visual representations of expected change. Findings demonstrated that deforestation, saltwater incursion, and a reduction in permanent waterbodies were projected by 2030 in a <i>Business as Usual Scenario</i>. Three alternative scenario narratives were developed, these included <i>Adaptation, Ecosystem Management</i>, and <i>Settlement Planning</i>. The results demonstrate that the effectiveness of actions under the scenario options differ between the islands, indicating the importance of understanding the suitability of national policies across considered scales. Synergies across the alternative scenario narratives also emerged, including integrated approaches for managing environmental change, community participation in decision making, effective protection of forests, cultural sensitivity to settlement planning, and poverty alleviation. These synergies could be used to plan strategic action towards effectively strengthening water–energy–food security in Zanzibar.
显示更多 [+] 显示较少 [-]Supporting water-food-land nexus policy coherence through integrated agrifood advisory and extension system in Egypt 全文
2024
Eldabbagh, Fayrouz | Brouziyne, Youssef
Supporting water-food-land nexus policy coherence through integrated agrifood advisory and extension system in Egypt 全文
2024
Eldabbagh, Fayrouz | Brouziyne, Youssef
Building policy coherence is significant in governing natural resources, especially in a changing climate and growing population. Designing and implementing coherent climate-adaptive water productivity policies through holistic and integrated knowledge could manage the growing demand for food and water, and sustain small-scale farmers' livelihoods and economies, which is the aim of this research. This study focuses on the analysis of power dynamics and the social network that evolves around the control of information and technical assistance that shape policy narratives. Results showed that donors and financial institutions are the primary powers to control and organize knowledge and technical assistance linked to soil-water conservation especially when it’s combined with mobilizing relevant funds. Many smallholder farmers still adopt traditional patterns of cultivation due to the siloed knowledge gaps in the extension services of governmental entities, the unreachability of extension services, the lack of trust in their guidance, and the absence of innovations’ scalability. Building integrated extension services between ministries, by providing equal and suitable financial packages. This would be feasible by managing the coordination with financial institutions, monetary and nonmonetary incentives, and building on existing farmers’ collective organizations and farmers’ pioneers to enable a sociological transition to water productivity.
显示更多 [+] 显示较少 [-]Supporting Water-Food-Land Nexus policy coherence through integrated agrifood advisory and extension system in Egypt 全文
2024
Eldabbagh Fayrouz | Brouziyne Youssef
Building policy coherence is significant in governing natural resources, especially in a changing climate and growing population. Designing and implementing coherent climate-adaptive water productivity policies through holistic and integrated knowledge could manage the growing demand for food and water, and sustain small-scale farmers’ livelihoods and economies, which is the aim of this research. This study focuses on the analysis of power dynamics and the social network that evolves around the control of information and technical assistance that shape policy narratives. Results showed that donors and financial institutions are the primary powers to control and organize knowledge and technical assistance linked to soil-water conservation especially when it’s combined with mobilizing relevant funds. Many smallholder farmers still adopt traditional patterns of cultivation due to the siloed knowledge gaps in the extension services of governmental entities, the unreachability of extension services, the lack of trust in their guidance, and the absence of innovations’ scalability. Building integrated extension services between ministries, by providing equal and suitable financial packages. This would be feasible by managing the coordination with financial institutions, monetary and non-monetary incentives, and building on existing farmers’ collective organizations and farmers’ pioneers to enable a sociological transition to water productivity.
显示更多 [+] 显示较少 [-]Framing Water–Energy–Food–Ecosystem (WEFE) nexus interactions in the Tana-Beles Sub-Basin of Ethiopia 全文
2024
Abera, Wuletawu | Getaneh, Yonas | Balcha, Yodit | Assefa, Tewodros | Mulatu, Chalachew A. | Ebrahim, Girma Yimer | Tesfaye, Megersa | Dawit, Meseret | Abebe, Wubneh Belete | Taye, Meron Teferi
The water–energy–food–ecosystems (WEFE) provide vital resources that are essential to human existence. Exploring synergies and trade-offs in these systems has been of interest in recent years to increase economic gain while sustaining the environment. The Tana-Beles Sub-basin of Ethiopia is challenged by population density, climate change, and ecosystem degradation that requires a WEFE Nexus thinking. To understand the current WEFE nexus interactions in the basin, a systematic review of 102 scientific research articles published from 1991 to 2021 was undertaken. Additionally, the systematic review is complemented by spatial data analysis to identify synergies and trade-offs among the WEFE nexus indicators. The analysis revealed the dominance of food–water–ecosystem interdependencies in WEFE nexus research for the Tana-Beles Sub-basin. This dominance is driven by extensive food production activities, which lead to substantial water abstraction and hydrological alterations to meet the intensive water demands of crop cultivation. Simultaneously, the energy-ecosystem interactions are critical due to excessive biomass utilization that exceeds the biomass production potential of the area. Furthermore, the available vegetation cover of the area is very limited to supplement the growing fuel wood demands, which is exerting extreme land degradation and threatening the ecosystem in the sub-basin. This study identifies gaps in WEFE understanding, highlights specific challenges and opportunities within the basin, and calls for coordinated stakeholder action for sustainable resource management through a Nexus approach.
显示更多 [+] 显示较少 [-]Electrolyzed Water: A Promising Strategy for Improving Food Quality and Safety of Fruits, Vegetables, and Meat 全文
2024
Parkash Meghwar | Syed Muhammad Ghufran Saeed | Lucrezia Forte | Slim Smaoui | Nurul Izzah Khalid | Pasquale De Palo | Aristide Maggiolino
Electrolyzed Water: A Promising Strategy for Improving Food Quality and Safety of Fruits, Vegetables, and Meat 全文
2024
Parkash Meghwar | Syed Muhammad Ghufran Saeed | Lucrezia Forte | Slim Smaoui | Nurul Izzah Khalid | Pasquale De Palo | Aristide Maggiolino
The growing demand for sustainable and healthy practices has led to an increased interest in the electrolyzed water (EW) application. This technology has garnered widespread acceptance as a sanitizer within the food industry. It also enhances the nutritional, functional, and sensory properties of food products to improve quality and safety. This review undertakes a comprehensive review of the recent advancements in electrolysis technology, exploring its applications in fruits and meat industry and its impact on nutritional, functional, microbiological, safety, and sensory characteristics. It is concluded that the EW should be considered an essential component of industrial equipment sanitization and food product decontamination by offering antimicrobial benefits and promoting functional component accumulation. Nevertheless, the effectiveness of EW can be compromised by the presence of organic matter and equipment corrosion. Furthermore, it provides a concise overview of EW generation, elucidates the influential factors governing its production, and delineates prospective directions for research and development in this field.
显示更多 [+] 显示较少 [-]Electrolyzed Water: A Promising Strategy for Improving Food Quality and Safety of Fruits, Vegetables, and Meat 全文
2024
Parkash Meghwar | Syed Muhammad Ghufran Saeed | Lucrezia Forte | Slim Smaoui | Nurul Izzah Khalid | Pasquale De Palo | Aristide Maggiolino
The growing demand for sustainable and healthy practices has led to an increased interest in the electrolyzed water (EW) application. This technology has garnered widespread acceptance as a sanitizer within the food industry. It also enhances the nutritional, functional, and sensory properties of food products to improve quality and safety. This review undertakes a comprehensive review of the recent advancements in electrolysis technology, exploring its applications in fruits and meat industry and its impact on nutritional, functional, microbiological, safety, and sensory characteristics. It is concluded that the EW should be considered an essential component of industrial equipment sanitization and food product decontamination by offering antimicrobial benefits and promoting functional component accumulation. Nevertheless, the effectiveness of EW can be compromised by the presence of organic matter and equipment corrosion. Furthermore, it provides a concise overview of EW generation, elucidates the influential factors governing its production, and delineates prospective directions for research and development in this field.
显示更多 [+] 显示较少 [-]Food Web Structure and Ecosystem Functions of the Water Source in the Middle Route of China’s South-to-North Water Diversion Project 全文
2024
Yuanyuan Zhang | Kaidi Gu | Xinyu Wang | Ji’ao Zhang | Jiaoyang Duan | Zhongjun Hu | Qigen Liu
Food Web Structure and Ecosystem Functions of the Water Source in the Middle Route of China’s South-to-North Water Diversion Project 全文
2024
Yuanyuan Zhang | Kaidi Gu | Xinyu Wang | Ji’ao Zhang | Jiaoyang Duan | Zhongjun Hu | Qigen Liu
The Danjiangkou Reservoir is the water source of the middle route of China&rsquo:s South-to-North Water Diversion Project, encompassing the Dan Reservoir and Han Reservoir. However, little is known about the ecological functions of this important ecosystem. Based on a survey conducted in 2023 in the Dan Reservoir, a mass balance model was constructed using Ecopath with Ecosim 6.6 software to characterize its food web structure and ecosystem properties. The model consisted of 18 functional groups, including producers, consumers, and detritus, covering the entire process of energy flow in the ecosystem. The outputs indicated that the fractional trophic level of functional groups in the Dan Reservoir ecosystem ranged from 1.00 to 3.50. The ecotrophic efficiencies of the main economic fish species were all less than 0.9, and the ecotrophic efficiencies of phytoplankton and detritus were less than 0.5. There were two main food chains: the detritus food chain (39%) and the grazing food chain (61%). The total energy transfer efficiency between trophic levels was only 6.02%, and there was a significant phenomenon of energy transfer blockage between trophic levels II and V. Analysis of the overall characteristics of the ecosystem revealed that the total primary production to total biomass (67.96619), connectance index (0.274), and Finn&rsquo:s cycling index (2.856) of the Dan Reservoir ecosystem all indicate that the ecosystem is immature, with low nutrient recycling efficiency and poor resistance to external disturbances. This may be related to the low proportion of silver carp and bighead carp in the reservoir and the unreasonable structure of the fish community. Our results suggest that it is necessary to scientifically adjust the structure of the fish community, enhance the proportion of filter-feeding and omnivorous fish to improve the energy flow efficiency, and promote the maturity and stability of the Dan Reservoir.
显示更多 [+] 显示较少 [-]Food Web Structure and Ecosystem Functions of the Water Source in the Middle Route of China’s South-to-North Water Diversion Project 全文
2024
Yuanyuan Zhang | Kaidi Gu | Xinyu Wang | Ji’ao Zhang | Jiaoyang Duan | Zhongjun Hu | Qigen Liu
The Danjiangkou Reservoir is the water source of the middle route of China’s South-to-North Water Diversion Project, encompassing the Dan Reservoir and Han Reservoir. However, little is known about the ecological functions of this important ecosystem. Based on a survey conducted in 2023 in the Dan Reservoir, a mass balance model was constructed using Ecopath with Ecosim 6.6 software to characterize its food web structure and ecosystem properties. The model consisted of 18 functional groups, including producers, consumers, and detritus, covering the entire process of energy flow in the ecosystem. The outputs indicated that the fractional trophic level of functional groups in the Dan Reservoir ecosystem ranged from 1.00 to 3.50. The ecotrophic efficiencies of the main economic fish species were all less than 0.9, and the ecotrophic efficiencies of phytoplankton and detritus were less than 0.5. There were two main food chains: the detritus food chain (39%) and the grazing food chain (61%). The total energy transfer efficiency between trophic levels was only 6.02%, and there was a significant phenomenon of energy transfer blockage between trophic levels II and V. Analysis of the overall characteristics of the ecosystem revealed that the total primary production to total biomass (67.96619), connectance index (0.274), and Finn’s cycling index (2.856) of the Dan Reservoir ecosystem all indicate that the ecosystem is immature, with low nutrient recycling efficiency and poor resistance to external disturbances. This may be related to the low proportion of silver carp and bighead carp in the reservoir and the unreasonable structure of the fish community. Our results suggest that it is necessary to scientifically adjust the structure of the fish community, enhance the proportion of filter-feeding and omnivorous fish to improve the energy flow efficiency, and promote the maturity and stability of the Dan Reservoir.
显示更多 [+] 显示较少 [-]Three-layer business model canvas of oil-water separation equipment in restaurants and food processing factories 全文
2024
Toshihiko Otsuka | Riaru Ishizaki | Tofael Ahamed | Ryozo Noguchi
A three-layer business model canvas was applied to clarify the environmental, economic, and social impacts of introducing oil-water separation equipment (OWSE) used in restaurants and food processing factories. Introducing high-performance OWSE can change the social structure of manufacturers and residents of sewerage development areas and provide economic benefits to companies. Based on the data of a ramen restaurant in Miyagi, Japan, evaluated the economic effect of introducing OWSE resulted in the total initial cost and maintenance was 1,032USD/year less than the cost of the sewage fee. Therefore, the proposed equation can be used to evaluate the economic effects of introducing OWSE.
显示更多 [+] 显示较少 [-]Food-grade silica-loaded gallic acid nanocomposites: Synthesis and mechanism for enhancing water-based biological activity 全文
2024
Huizhen Feng | Long Jiao | Xiaoye Zhang | Soottawat Benjakul | Bin Zhang
As the low water solubility of gallic acid (GA), its biological activities such as water-based antioxidant effect may be greatly reduced. Therefore, GA-loaded nanocomposites (F-SiO2@GA) with high water solubility were synthesized via solvent evaporation using food-grade silica (F-SiO2) as carriers in this work. The assessment of antioxidant capacity revealed that F-SiO2@GA exhibited considerably greater free-radical scavenging ability than free GA and the physical mixture of F-SiO2 and GA. In the photooxidation experiment of food-grade gardenia yellow pigment (GYP), F-SiO2@GA showed a notable antioxidant effect on GYP solution. Additionally, in the storage experiment on chilled whiteleg shrimp (Litopenaeus vannamei) treated with F-SiO2@GA, pH, total volatile basic nitrogen (TVBN), and thiobarbituric acid reactive substance (TBARS) values were effectively inhibited. In conclusion, the internal encapsulation of GA effectively prevented the self-aggregation phenomenon, thereby facilitating the exposure of its active phenolic hydroxyl group and significantly enhancing its water-based biological activity.
显示更多 [+] 显示较少 [-]Assessing the role and capacity of water management organisations for ensuring delta food security in Bangladesh 全文
2024
Nath, D.K. | Mondal, M.K. | Mojid, M.A. | Jayasiri, M.M.J.G.C.N. | Jagadish, S.V.K. | Yadav, S.
The coastal zone, consisting of one-third country's area, is the most climate-vulnerable region of Bangladesh. The country has invested significantly in coastal zone through the construction and rehabilitation of polders. Despite vast opportunities, land productivity in the polders is very low due to poor water governance and management. To improve in-polder water management, the responsibility of operation and maintenance of the polder water infrastructure has been transferred to Water Management Organizations (WMOs) since 2001. WMOs are currently voluntary organizations but are very important for micro-level agricultural water management. A study was conducted in 2017 and 2018 in a medium saline polder; with a major focus on organizational behaviour: hierarchy in decision-making, transparency, financial accountability, leadership, internal communication, and motivational incentives of the WMOs. The data were collected through a structured questionnaire from 192 respondents of randomly selected eight Water Management Groups (WMGs – the lowest tier of WMOs), out of 40 WMGs of the polder. The results revealed that the WMGs operations are not fully participatory in principle yet. Even the transparency, financial accountability, leadership, and internal communications within WMGs are not strong enough to take the organizational responsibility to address future challenges in food security of the climate-vulnerable polder communities. Improving drainage through efficient water management showed a yield gain of at least 1.5 t/ha in the wet season only. In addition, improved drainage fosters sustainable year-round cropping with high-yielding, high-value and nutrition-rich crops with 2 to 3 times higher productivity than the traditional cropping system. Therefore, investment in water governance particularly in improving drainage in the polders could be a major game-changer in sustaining the food security of the climate-vulnerable polder communities of Bangladesh. The study identified the knowledge gap as a significant concern that demands the need for capacity building of the WMOs.
显示更多 [+] 显示较少 [-]Using nexus tools to evaluate water, energy, food, and ecosystems policies in the Ganges Basin, India. 全文
2024
Singh, Vartika | Alam, Mohammad Faiz | Sharma, Ruchi
A review of policies and programs on water, energy, food, and ecosystems in India showed that multiple policies have been enacted; however, these policies rarely consider the impact on other sectors, and associated programs significantly overlap in terms of objectives and goals. For this reason, since 2022, NEXUS Gains has developed methodologies and tools to enable the assessment of WEFE policy scenarios for synergistic action in India.
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