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Yu Peng
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China

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Review
Published: 07 June 2021 in Sustainability
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Given the impact of COVID-19 and the desert locust plague, the Ethiopian food security issue has once again received widespread attention. Its food crisis requires comprehensive and systematic research to achieve the United Nations Sustainable Development Goal of zero hunger. This review discusses the current situation and the causes of food security in Ethiopia. We focus on the challenges in the food security assessment field. The article lists seven typical causes of food insecurity and three roots of food security in Ethiopia. Long-term food security assessment and a comprehensive understanding and manageability for food security causes are considered as the main existing research challenges. Climate-resilient management, water management, and long-term ecosystem network monitoring and data mining are suggested as potential roadmap for future research.

ACS Style

Yu Peng; Hubert Hirwa; Qiuying Zhang; Guoqin Wang; Fadong Li. Dryland Food Security in Ethiopia: Current Status, Opportunities, and a Roadmap for the Future. Sustainability 2021, 13, 6503 .

AMA Style

Yu Peng, Hubert Hirwa, Qiuying Zhang, Guoqin Wang, Fadong Li. Dryland Food Security in Ethiopia: Current Status, Opportunities, and a Roadmap for the Future. Sustainability. 2021; 13 (11):6503.

Chicago/Turabian Style

Yu Peng; Hubert Hirwa; Qiuying Zhang; Guoqin Wang; Fadong Li. 2021. "Dryland Food Security in Ethiopia: Current Status, Opportunities, and a Roadmap for the Future." Sustainability 13, no. 11: 6503.

Journal article
Published: 07 June 2021 in Sustainability
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Water is the key limiting factor in socioeconomic and ecological development, but it is adversely affected by climate change. The novel virtual water (VW) concept and water, energy, food, biodiversity, and human health (WEFBH) nexus approach are powerful tools to assess the sustainability of a region through the lens of climate change. Climate change-related challenges and water are complex and intertwined. This paper analyzed the significant WEFBH sectors using the multicriteria decision-making (MCDM) and analytic hierarchy process (AHP) model. The AHP model demonstrated quantitative relationships among WEFBH nexus sustainability indicators in the Greater Horn of Africa countries. Besides, the net VW imports and water footprints of major staple crops were assessed. The composite WEFBH nexus indices varied from 0.10 to 0.14. The water footprint of crops is increasing period by period. The results also revealed that most countries in the study area are facing WEFBH domains unsustainability due to weak planning or improper management strategies. The strong policy constancy among the WEFBH sector is vital for dissociating the high-water consumption from crop production, energy, environmental, and human health system. Thus, this study enhances insights into the interdependencies, interconnectedness, and interactions of sectors thereby strengthening the coordination, complementarities, and synergies among them. To attain sustainable development, we urgently call all public and private entities to value the amount of VW used in their daily activities and design better policies on the complex WEFBH nexus and future climate change.

ACS Style

Hubert Hirwa; Qiuying Zhang; Yunfeng Qiao; Yu Peng; Peifang Leng; Chao Tian; Sayidjakhon Khasanov; Fadong Li; Alphonse Kayiranga; Fabien Muhirwa; Auguste Itangishaka; Gabriel Habiyaremye; Jean Ngamije. Insights on Water and Climate Change in the Greater Horn of Africa: Connecting Virtual Water and Water-Energy-Food-Biodiversity-Health Nexus. Sustainability 2021, 13, 6483 .

AMA Style

Hubert Hirwa, Qiuying Zhang, Yunfeng Qiao, Yu Peng, Peifang Leng, Chao Tian, Sayidjakhon Khasanov, Fadong Li, Alphonse Kayiranga, Fabien Muhirwa, Auguste Itangishaka, Gabriel Habiyaremye, Jean Ngamije. Insights on Water and Climate Change in the Greater Horn of Africa: Connecting Virtual Water and Water-Energy-Food-Biodiversity-Health Nexus. Sustainability. 2021; 13 (11):6483.

Chicago/Turabian Style

Hubert Hirwa; Qiuying Zhang; Yunfeng Qiao; Yu Peng; Peifang Leng; Chao Tian; Sayidjakhon Khasanov; Fadong Li; Alphonse Kayiranga; Fabien Muhirwa; Auguste Itangishaka; Gabriel Habiyaremye; Jean Ngamije. 2021. "Insights on Water and Climate Change in the Greater Horn of Africa: Connecting Virtual Water and Water-Energy-Food-Biodiversity-Health Nexus." Sustainability 13, no. 11: 6483.

Journal article
Published: 01 May 2021 in Journal of Resources and Ecology
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Arid areas are widespread globally and support a third of the world's population's livelihoods. The increasing population, urbanization, land-use changes, and the climate significantly affect coupled natural and human systems and threaten environments and socio-ecological land systems. The degradation of drylands poses a severe and widespread threat to the lives of millions of people, especially in developing countries and in the global environment. This review assesses published literature on dryland socio-ecological systems to reveal current research trends and changes in research themes over time and introduces basic theories and advances in dryland socio-ecological system frameworks, resilience measurement, and regime shifts. Developing a more general but adaptable framework and a more practical strategy for long-term coordination and partnership and attaining specific insights into ecological services should receive more attention and be strengthened in future studies on drylands sustainability.

ACS Style

Peng Yu; Zhang Qiuying; Chen Yuanzhan; Xu Ning; Qiao Yunfeng; Tian Chao; Hubert Hirwa; Salif Diop; Aliou Guisse; Li Fadong. Resilience, Adaptability, and Regime Shifts Thinking: A Perspective of Dryland Socio-Ecology System. Journal of Resources and Ecology 2021, 12, 376 -383.

AMA Style

Peng Yu, Zhang Qiuying, Chen Yuanzhan, Xu Ning, Qiao Yunfeng, Tian Chao, Hubert Hirwa, Salif Diop, Aliou Guisse, Li Fadong. Resilience, Adaptability, and Regime Shifts Thinking: A Perspective of Dryland Socio-Ecology System. Journal of Resources and Ecology. 2021; 12 (3):376-383.

Chicago/Turabian Style

Peng Yu; Zhang Qiuying; Chen Yuanzhan; Xu Ning; Qiao Yunfeng; Tian Chao; Hubert Hirwa; Salif Diop; Aliou Guisse; Li Fadong. 2021. "Resilience, Adaptability, and Regime Shifts Thinking: A Perspective of Dryland Socio-Ecology System." Journal of Resources and Ecology 12, no. 3: 376-383.

Journal article
Published: 12 May 2020 in Scientific Reports
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To understand the groundwater environmental quality and the impact of trace elements in the construction of urban agglomeration in China, this study collected 58 groundwater samples from the core area of the Chang-Zhu-Tan urban agglomeration (Changsha, Zhuzhou, Xiangtan) and quantitatively analyzed the content of 13 dissolved trace element and their spatial distribution characteristics. The health risk assessment model was further used to evaluate the human health risk caused by trace element pollution in groundwater. It was observed that Ba had the highest average concentration (0.28 mg·L−1), whereas Cd had the lowest (2.1 × 10−5 mg·L−1). Compared with China’s groundwater environmental quality standard, the exceeding rates of Se, Mn, Zn, and Ni concentrations were 37.93%, 17.24%, 1.72% and 1.72%, respectively. Ba, Cd, Co, Cr, Cu, Fe, Mo, and Pb did not exceed the corresponding standards. The 13 trace elements were distributed in a scattered pattern in space and the trace elements in both banks of the Xiang River, Zhuzhou, Weishui River and surrounding areas were relatively high. Health risk assessments showed that the carcinogenic risk values of Cd, Cr, and Pb and the health risk values of 10 non-carcinogenic elements were less than the corresponding maximum acceptable risk level. The health risks associated with non-carcinogenic substances through ingestion were higher than those associated with dermal absorption. Among the non-carcinogenic substances, Ba and Mn posed the greatest health risks. With respect to drinking water exposure, Cr had the highest carcinogenic risk, followed by Pb. Furthermore, Cd had the lowest carcinogenic risk. This study recommended that continuous monitoring of Ba, Mn, and Cr in groundwater should be practiced by assessing the risk of these elements in the Chang-Zhu-Tan urban agglomeration.

ACS Style

Congke Gu; Yan Zhang; Yu Peng; Peifang Leng; Nong Zhu; Yunfeng Qiao; Zhao Li; Fadong Li. Spatial Distribution and Health Risk Assessment of Dissolved Trace Elements in Groundwater in southern China. Scientific Reports 2020, 10, 1 -11.

AMA Style

Congke Gu, Yan Zhang, Yu Peng, Peifang Leng, Nong Zhu, Yunfeng Qiao, Zhao Li, Fadong Li. Spatial Distribution and Health Risk Assessment of Dissolved Trace Elements in Groundwater in southern China. Scientific Reports. 2020; 10 (1):1-11.

Chicago/Turabian Style

Congke Gu; Yan Zhang; Yu Peng; Peifang Leng; Nong Zhu; Yunfeng Qiao; Zhao Li; Fadong Li. 2020. "Spatial Distribution and Health Risk Assessment of Dissolved Trace Elements in Groundwater in southern China." Scientific Reports 10, no. 1: 1-11.

Report
Published: 01 May 2020 in Journal of Arid Land
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In order to enhance and restore the ecosystems of natural capital in African arid regions, the Global Dryland Ecosystem Programme (G-DEP) consultative meeting was hosted in Dakar, Senegal, from 23 to 25 September 2019. This paper details the first African meeting of the G-DEP. Consultative meeting reviewed preceding dryland ecosystems case studies, identified vulnerable arid and semi-arid regions, and proposed sustainable solutions to problems. It also identified the successes and failures of previous attempts to improve vulnerable ecosystems and ultimately formed an action plan to improve these attempts. Climate, ecosystems, and livelihoods for Sustainable Development Goals (SDGs), Great Green Wall Initiative (GGWI) for Sahara and Sahel, and China-Africa cooperation on science, technology, and innovation are three extra main sections concerned of the meeting. Separately, more specific topics as the complicated relationship between these natural processes and human activity, including pastoralism, soil restoration, and vegetation regenerate techniques, were fully discussed. Consultative meeting also identified the positive effects international collaboration can have on dryland regions, specifically in the capacity of sharing information, technology, and innovation on purpose to develop a joint proposal for long-term research programs in African arid and semi-arid areas. Moreover, meetings that review the progress made on ecosystem management for the sustainable livelihoods in Africa, identification of priority areas, and the development and implementation of ecosystem programs for proper research and collaboration in African arid and semi-arid zones, have been proposed as strategic recommendations to enhance the global partnership for sustainable development. Furthermore, as the outcomes of the workshop, there are three steps proposed to handle African dryland climate changes, several aspects suggested to solve current dilemmas of the GGWI, and a series of actions recommended for G-DEP related activities in Africa.

ACS Style

Yu Peng; Bojie Fu; Linxiu Zhang; Xiubo Yu; Chao Fu; Salif Diop; Hubert Hirwa; Aliou Guisse; Fadong Li. Global Dryland Ecosystem Programme (G-DEP): Africa consultative meeting report. Journal of Arid Land 2020, 12, 538 -544.

AMA Style

Yu Peng, Bojie Fu, Linxiu Zhang, Xiubo Yu, Chao Fu, Salif Diop, Hubert Hirwa, Aliou Guisse, Fadong Li. Global Dryland Ecosystem Programme (G-DEP): Africa consultative meeting report. Journal of Arid Land. 2020; 12 (3):538-544.

Chicago/Turabian Style

Yu Peng; Bojie Fu; Linxiu Zhang; Xiubo Yu; Chao Fu; Salif Diop; Hubert Hirwa; Aliou Guisse; Fadong Li. 2020. "Global Dryland Ecosystem Programme (G-DEP): Africa consultative meeting report." Journal of Arid Land 12, no. 3: 538-544.