Understanding the Impact of Land Use and Land Cover Change on Water–Energy–Food Nexus in the Gidabo Watershed, East African Rift Valley

Wolde, Zinabu; Wei, Wu; Likessa, Dereje; Omari, Rollins; Ketema, Haile

doi:10.1007/s11053-021-09819-3

Cited by 34 publications

(12 citation statements)

References 32 publications

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“…Simulation models are based on the phrase "if ... then ... " and this means that the question is, what will most likely happen at any time and in one or more places under a design with an exploitation policy? The advantage of simulation methods is their ability to solve the challenges of analyzing water resources systems, which have nonlinear relations and constraints (Wolde et al, 2021). While optimization methods rarely have the ability to address them.…”

Section: Methodsmentioning

confidence: 99%

Sustainability assessment of food industry with the approach of water, energy and food nexus

et al. 2022

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The development of the food industry, along with the protection of water and energy resources, is crucial for sustainable economic growth and human well-being. Water, energy and food nexus approaches can help reduce food waste and other resources by adopting policies and regulations based on comprehensive information and Nexus that promote the use of more efficient production technologies in terms of water and energy consumption against food waste. This paper aims to identify the potential of integrated management of food industry, water and energy in Sulaimaniyah. In this paper, the WEAP planning system, as well as Excel software, have been used. Also, five scenarios were proposed that predicted the level of food demand and shortage of water and energy resources from 2021 to 2025. Considering the simultaneous development of food industry and agriculture, scenario 5 was selected as the best scenario. In this scenario, simultaneous management of water and energy demand is also considered to increase food production. In scenario 5, the amount of water supply is 94.85%, which indicates that it is more effective than in scenarios 3 and 4. Also, in scenario 5, with the increase in surface water use and full use of electric pumps instead of diesel, the amount of energy required to pump water from the aquifer is 55% and 49% less than in scenarios 3 and 4 respectively.

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Section: Methodsmentioning

confidence: 99%

Sustainability assessment of food industry with the approach of water, energy and food nexus

et al. 2022

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“…Climatic conditions such as drought and flooding have degraded over 2000 million ha of land worldwide (El-Beltagy & Madkour, 2012). Wolde et al (2021) investigated the impact of changing land use and land cover on the water-energy-food nexus in the Gidabo watershed, an East African rift valley, by using data over the study period . The findings of the study revealed that forestland shrank by 50%, farmland decreased over the entire study period, forest decline was associated with rapid population growth and bare land increased.…”

Section: How Do Land Usage and Cover Affect The Availability Of Food ...mentioning

confidence: 99%

Is Africa's food insecurity linked to land use coverage, irrigation adoption and water scarcity?

Bedasa

2023

Irrigation and Drainage

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The low agricultural yield and production in Africa, ongoing food insecurity and ineffective use of farm inputs are the main motivations for this study. Hence, to increase agricultural productivity, fundamental adjustments to resource management and policy are needed. However, there has been little prior research on how Africa's food security is affected by inadequate land usage and water availability. As a result, farmers are given access to insufficient water projects, which lowers agricultural productivity due to ineffective government operations and poor water resource management. Despite many unfavourable changes to their rainfed agricultural systems, many smallholder farmers have not embraced irrigation investment. The results of this study indicated that more irrigation and better management of land were required to increase productivity in water‐scarce areas. The acceptance of irrigation by farmers greatly depends on their social and cultural knowledge, their participation in new projects, methods and technologies, as well as their capacity to adapt. The key policy implication is an increase in irrigation in an effort to boost agricultural growth and reduce food insecurity. It is advised that the participation of stakeholders, planners and policymakers at all levels is the foundation of water development and management.

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“…The basin has been subjected to substantial landscape alteration, climatic variability and drastic ecological change [27][28][29][30][31][32]. These changes, triggered by dynamic population growth, exacerbate soil erosion, excessive sedimentation and eutrophication of waterbodies, hydrological imbalance and land-water-energy-food nexus resource degradation in the basin [33][34][35][36][37][38]. The explicit quantification of spatial and temporal trends of land degradation and its trajectory help to achieve LDN [15].…”

Section: Introductionmentioning

confidence: 99%

Integrated Modeling of Land Degradation Dynamics and Insights on the Possible Future Management Alternatives in the Gidabo River Basin, Ethiopian Rift Valley

Girma,

Moges,

Fürst

2023

Land

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Land degradation is a pivotal environmental concern, bearing substantial impacts in the Gidabo river basin (GRB) in Ethiopia, prompting a critical need for effective mitigation strategies. In this study, we aimed to assess the dynamics of land degradation pathways in the context of change in climate and land use. The identification of potential erosion hotspots and the appraisal of management strategies was also carried out. The Soil and Water Assessment Tool (SWAT) and the Good Practice Guidance (GPG) framework was employed. The results revealed a compelling synergy between land use dynamics and climate changes, asserting joint and individual prevalence in influencing surface runoff and sediment yield. The past simulation revealed 4–5.9% and 24–43% increments in mean annual runoff and sediment yield, respectively. While the near (2021–2040) and mid (2041–2060) future scenarios displayed varying trends under RCP4.5 and RCP8.5. Furthermore, sub-basins prone to soil erosion risk were identified, thereby enabling targeted conservation efforts. The assessment of trends in land degradation neutrality (LDN) unveiled the expansion of land degradation trajectories (by 26%) from 1985–2003 to 2003–2021. This might be attributed to the dynamic interplay between climate and land use land cover (LULC) change, with croplands and bare land emerging as high-risk degraded areas. Addressing these concerns, soil/stone bund, terracing, contour farming, and reforestation practice can significantly reduce the annual sediment yield in the future. The integration of soil erosion indicators with LDN sub-indicators can provide a more comprehensive approach that can lead to more effective land management and restoration strategies to achieve the LDN goal. The findings of this study could contribute crucial insights and substantial implications for policymakers, land managers, and conservationists. Moreover, future efforts should be directed to expand investigations into diverse land degradation pathways and mitigation measures.

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Understanding the Impact of Land Use and Land Cover Change on Water–Energy–Food Nexus in the Gidabo Watershed, East African Rift Valley

Cited by 34 publications

References 32 publications

Sustainability assessment of food industry with the approach of water, energy and food nexus

Sustainability assessment of food industry with the approach of water, energy and food nexus

Is Africa's food insecurity linked to land use coverage, irrigation adoption and water scarcity?

Integrated Modeling of Land Degradation Dynamics and Insights on the Possible Future Management Alternatives in the Gidabo River Basin, Ethiopian Rift Valley

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