Diversification for enhanced food systems resilience

Hertel, Thomas W.; Elouafi, Ismahane; Tanticharoen, Morakot; Ewert, Frank

doi:10.1038/s43016-021-00403-9

Cited by 62 publications

(38 citation statements)

References 14 publications

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“…Moreover, there are potentially important crop management restrictions in all EU countries, where inputs, particularly fertilisers and pesticides, are high and require regulatory policies to reduce their environmental impact. To counteract the effects of low inputs and increase resilience, efforts are needed to increase crop diversity (Hertel et al, 2021), crop disease and pest resistance, and more nutrient‐efficient varieties to ensure that yields continue to increase. Finally, the interplay among genetic adaptation, crop cycle duration, sowing dates and smart irrigation systems is likely to require constant local adjustments and thorough testing to identify optimal parameters and maximise yields regionally.…”

Section: Discussionmentioning

confidence: 99%

Will temperature and rainfall changes prevent yield progress in Europe?

Lopes

2022

Food and Energy Security

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Concerns about the effects of global warming on crop yields have been raised due to stagnating yield progress in recent years. However, an understanding of the effects of changes in temperature and rainfall throughout the crop cycle on historical yield progress is lacking in Europe (EU). In this study, positive wheat, barley, rice, and maize yield progress in the EU (1961–2019) was significant, with rates of 0.05, 0.04, 0.05, and 0.07 Tha−1year−1, for the four crops respectively. Much of this progress has been sustained by Eastern European countries (EE), which had the highest yield progress rates. On average, in the case of wheat and barley, a temperature increase of 1°C in the winter resulted in yields increasing by +0.33 Tha−1 in EE. This was potentially due to decreasing cold damage and improved photosynthesis and vegetative growth, supporting positive yield progress. Recent historical (2001–2019) rates of wheat, barley, rice, and maize yield progress were positive in all EU regions except Western Europe (WE), barley in Southern Europe (SE) and wheat in Northern Europe (NE). Stagnated wheat, barley and rice yields in WE were not explained by temperature or rainfall using direct correlations of observed data. However, May and July temperatures were associated with wheat yields in NE (−0.30 Tha−1°C−1), barley in SE (−0.14 Tha−1°C−1) and maize in WE and SE (−0.42 and −0.39 Tha−1°C−1). With increasing temperatures becoming less than optimal for photosynthesis, reducing grain filling duration and increasing drought episodes, crop yields have stagnated for wheat in NE and barley in SE. With consistent increases in temperature and water evaporative demand expected in the future, the interplay among genetic adaptation, increased crop cycle duration, drought tolerance, sowing dates, smart irrigation and sustainable practices may require thorough regional testing to maximise the yields of wheat, barley and maize in Europe.

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Section: Discussionmentioning

confidence: 99%

Will temperature and rainfall changes prevent yield progress in Europe?

Lopes

2022

Food and Energy Security

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“…Five capacities of resilient food systems to manage climate changes and shocks to the ecosystem are considered essential [ 72 , 73 ]. These include the capacity to (i) anticipate the need for new approaches, (ii) prevent the impact of shocks, (iii) absorb the shocks for maintaining a functioning food system, (iv) adapt to an evolving risk, and (v) transform the current food system to make it sustainable [ 11 ]. These capacities for resilience require many of the same qualities of social and natural systems [ 74 ].…”

Section: Resultsmentioning

confidence: 99%

“…The literature on food systems resilience has generally concentrated on the responses of food systems to climate change [ 7 , 8 , 9 , 10 ]; natural hazards [ 11 , 12 ]; socioeconomic crises, e.g., due to the COVID-19 pandemic [ 13 , 14 , 15 , 16 , 17 , 18 ]; and implications for interventions to build resilience [ 19 , 20 , 21 , 22 ]. There is a growing number of studies on food system resilience in rural and marginalized communities and neglected territories that focus on the role of natural resources [ 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Considering Ecosystem Services in Food System Resilience

Varyvoda

Taren

2022

IJERPH

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The prevalence and severity of natural hazards pose a serious risk to food systems, undermining their function to provide food security and improved nutrition. The impact of such events is extensive, and the level of damage and recovery significantly depend on ecosystem services, including their own resilience capacity. This paper provides evidence that the role, value, and utilization of local ecosystem services are essential for food system resilience and for food security in parts of the world where high vulnerability and lack of coping capacity exist to combat climate change. Patterns of ecosystem services-based strategies were revealed that can be introduced to cope and adapt to climate-related natural hazards at the smallholder food system level. The study suggests that food system diversification, technological innovations and nature-based practices, and traditional and indigenous knowledge operationalized across the food system components have a potential for sustaining smallholder resilience in the face of natural hazards.

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“…Second, there needs to be attention given to nutritional balance and dietary balance in light of COVID-19. Third, it is important for the government to introduce supply-side policies to stabilize production, as well as provide policies to promote consumption and price stability to make the food system more resilient [71]. Finally, under the influence of the COVID-19, China's food security should focus on macro policy while focusing more on resident groups, families, and individuals.…”

Section: Discussionmentioning

confidence: 99%

Impacts of COVID-19 on Nutritional Intake in Rural China: Panel Data Evidence

et al. 2022

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The COVID-19 pandemic introduced risks and challenges to global food and nutrition security. In this paper, we examine the impact of the COVID-19 pandemic on the nutritional intake of China’s rural residents using panel data and a fixed effects model. The data were collected in 2019 and 2020 and covered nine provinces and 2631 households in rural China. The results reveal that an increase of 100 confirmed cases in a county resulted in a 1.30% (p < 0.01), 1.42% (p < 0.01), 1.65% (p < 0.01), and 1.15% (p < 0.01) decrease in per capita intake of dietary energy, carbohydrates, fats, and proteins, respectively. Moreover, the COVID-19 pandemic had a significant and negative effect on dietary macronutrient intake in the low-income group at the 5% level of significance. Our study indicates that the potential insufficient nutrition situation, nutritional imbalance, and dietary imbalance of low-income rural residents should be addressed appropriately.

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Diversification for enhanced food systems resilience

Cited by 62 publications

References 14 publications

Will temperature and rainfall changes prevent yield progress in Europe?

Will temperature and rainfall changes prevent yield progress in Europe?

Considering Ecosystem Services in Food System Resilience

Impacts of COVID-19 on Nutritional Intake in Rural China: Panel Data Evidence

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