Benchmarking nutritional water productivity of twenty vegetables - A review

Nyathi, Melvin; Mabhaudhi, Tafadzwanashe; Halsema, G.E. van; Annandale, J. G.; Struik, P.C.

doi:10.1016/j.agwat.2019.05.008

Cited by 20 publications

(20 citation statements)

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“…[3]). Similarly, the discussion on energy productivity in agriculture (A6) has not been addressed adequately, though some studies have attempted to deal with this issue (e.g., [56][57][58][59]). the uniformly applicable "water footprint" framework regarding water use efficiency for different forms of energy or food production [76][77][78][79][80][81] 2.…”

Section: Narrowing Knowledge Gapsmentioning

confidence: 99%

Water-Energy-Food Nexus: Critical Review, Practical Applications, and Prospects for Future Research

et al. 2021

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This paper presents knowledge gaps and critiques on the water–energy–food (WEF) nexus that have emerged since the concept of the WEF nexus was proposed by the World Economic Forum and the Bonn 2011 Conference. Furthermore, this study analyses current innovations on the WEF nexus concept, applications, and impacts during the period of 2012–2020. This begins by reviewing ten WEF nexus frameworks developed by international organizations and researchers. On this basis, several gaps and omissions in nexus frameworks are obvious in almost all developed frameworks. Studies that start to address some of these gaps are analysed, but they are relatively few and do not address all gaps. Several proposed improvements to nexus frameworks are identified to narrow the gaps and put the concept into practical implementation in WEF resources management and governance. Four principles and the perspective of “from local to global” for future WEF nexus framework development and analysis are suggested to ensure that the security of water, energy, and food resources can be achieved sustainably in local communities. This will improve the impact of national and global ambitions on WEF security.

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Section: Narrowing Knowledge Gapsmentioning

confidence: 99%

Water-Energy-Food Nexus: Critical Review, Practical Applications, and Prospects for Future Research

et al. 2021

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“…The result is an index that includes nutritional value-based output per unit of water used [ 10 ]. Under water-scarce conditions, crop and irrigation experts have historically focused on producing “more crop per unit of water used” (water productivity), whereas nutritionist research has focused on meeting the daily recommended human nutrition requirements [ 12 ]. This has led to a lack of attention to the inter-linkages between food/crop production, human health and nutrition.…”

Section: Introductionmentioning

confidence: 99%

“…The application benefit to measuring crop NWP values is the ease of selecting crops that maximize the nutrition of key nutrients per drop of water and ease of selecting crops with sustained nutrient density under water-scarce environments reminiscent of crop growing conditions in semi-arid SSA. Research on NWP of drought-tolerant, nutrient-dense crops has been scarce; where present, it has focused on the contribution of leafy vegetables [ 1 , 12 ] and legumes [ 13 ]. This is despite the fact that cereals are the main staple food crops in SSA, and sorghum (second most produced and consumed cereal) is known for its drought-tolerance qualities [ 5 ], producing reasonable yields under water scarcity.…”

Section: Introductionmentioning

confidence: 99%

Assessing Suitability of Sorghum to Alleviate Sub-Saharan Nutritional Deficiencies through the Nutritional Water Productivity Index in Semi-Arid Regions

Hadebe

Modi

Mabhaudhi

2021

Foods

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Lack of cereal nutritional water productivity (NWP) information disadvantages linkages of nutrition to water–food nexus as staple food crops in Sub-Saharan Africa (SSA). This study determined the suitability of sorghum (Sorghum bicolor L. Moench) genotypes to alleviate protein, Zn and Fe deficiency under water-scarce dryland conditions through evaluation of NWP. Sorghum genotypes (Macia, Ujiba, PAN8816, IsiZulu) NWP was quantified from three planting seasons for various sorghum seed nutrients under dryland semi-arid conditions. Seasons by genotypes interaction highly and significantly affected NWPStarch, Ca, Cu, Fe, and significantly affected NWPMg, K, Na, P, Zn. Genotypic variations highly and significantly affected sorghum NWPProtein, Mn. Macia exhibited statistically superior NWPprotein (13.2–14.6 kg·m−3) and NWPZn (2.0–2.6 g·m−3) compared to other tested genotypes, while Macia NWPFe (2.6–2.7 g·m−3) was considerably inferior to that of Ujiba and IsiZulu landraces under increased water scarcity. Excellent overall NWPprotein, Fe and Zn under water scarcity make Macia a well-rounded genotype suitable to alleviating food and nutritional insecurity challenges in semi-arid SSA; however, landraces are viable alternatives with limited NWPprotein and Zn penalty under water-limited conditions. These results underline genotype selection as a vital tool in improving “nutrition per drop” in semi-arid regions.

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“…The gaps addressing studies on topics A5 and A6 (Table 2.4) are insufficiently addressed. For example, the topic of nutritional water productivity is still very limited, although a few studies have explored the issue (Nyathi et al, 2016;Nyathi et al, 2018;Nyathi et al, 2019;and Nouri et al, 2020). These studies contribute to narrowing knowledge gaps in the WEF nexus, especially in relation to ecosystem services (cf.…”

Section: Narrowing Knowledge Gapsmentioning

confidence: 99%

“…Ball et al (2015); Moghaddasi and Pour (2016); Elsoragaby et al (2019); Rautaray et al (2020). (MacDonald et al, 2012); (van Camp et al, 2013); (Rahmati et al, 2016); (Rezaei and Mohammadi, 2017); (Lezzaik and Milewski, 2018) 2. the consumptive water use in the energy sector, compared to withdrawal data (Davies et al, 2013); (Dodder, 2014); (Mekonnen et al, 2015); (Liao et al, 2016); (Pan et al, 2018); (Vanham et al, 2019) 3. the impacts of hydropower and other water resources development on aquatic ecosystems (Liermann et al, 2012); (Odiyo et al, 2012); (Elosegi and Sabater, 2013); (Yan et al, 2015); (Fan et al, 2015); (Hecht et al, 2019) 4. the full life-cycle assessments in terms of water and energy (Feng et al, 2014); (Al-Ansari et al, 2015); (Pacetti et al, 2015); (Mannan et al, 2018); (Masella and Galasso, 2020) 5. water productivity per nutritional content of food products (Nyathi et al, 2016); (Nyathi et al, 2018); (Nyathi et al, 2019); (Nouri et al, 2020) 6. energy productivity in agriculture (Ball et al, 2015); (Moghaddasi and Pour, 2016); (Elsoragaby et al, 2019); (Rautaray et al, 2020) B. Insufficient availability of: 1. the uniformly applicable 'water footprint' framework regarding water use efficiency for different forms of energy or food production (Okadera et al, 2015);…”

Section: Narrowing Knowledge Gapsmentioning

confidence: 99%

Grasping the water, energy, and food security nexus in the local context : Case study: Karawang Regency, Indonesia

Purwanto

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Despite an abundance in natural and human resources, Indonesia has not been able to significantly improve the level of water, energy, and food (WEF) security. Challenges in achieving WEF security targets mostly relate to resource mismanagement, lack of coordination, authority imbalance among sectors, and overlapping roles and responsibility among levels of government. The immature process of the decentralization has made these challenges even more complex; it is not easy to unify the vision of local governments (i.e. 34 provinces, 416 regencies, 98 cities) with the Regional Head who is elected every 5 years and sometimes brings different goals and development approaches.The lack of information, awareness, coordination and a common framework to bridge the gaps between national and local governments, jeopardizes the attainment of WEF security targets which have been set in the national long-term planning (RPJPN) and mid-term planning (RPJMN). Unfortunately, this complex issue has not received the attention it deserves, from a scientific perspective nor from a practical implementation point of view such as through laws, policies and planning processes.

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Benchmarking nutritional water productivity of twenty vegetables - A review

Cited by 20 publications

References 66 publications

Water-Energy-Food Nexus: Critical Review, Practical Applications, and Prospects for Future Research

Water-Energy-Food Nexus: Critical Review, Practical Applications, and Prospects for Future Research

Assessing Suitability of Sorghum to Alleviate Sub-Saharan Nutritional Deficiencies through the Nutritional Water Productivity Index in Semi-Arid Regions

Grasping the water, energy, and food security nexus in the local context : Case study: Karawang Regency, Indonesia

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