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#yields

2 posts2 participants0 posts today
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Alexander J. Stein

#Sustainable agricultural practices that both protect pollinator populations & mitigate #climate risks could help secure—and even improve—cocoa yields; #cocoa is pollinated by tiny #insects and most of the time there isn't enough #pollination happening: ox.ac.uk/news/2025-02-14-new-s #yields

www.ox.ac.ukNew study highlights ways to future-proof cocoa production | University of OxfordThis Valentine’s Day, millions of pounds worth of chocolate will be exchanged as gifts, but climate change and biodiversity loss imperil future global supplies of this treat. A new research study led by the University of Oxford and published today (14 February) demonstrates that sustainable agricultural practices that both protect pollinator populations and mitigate climate
Public
Alexander J. Stein

#Agriculture is a key driver of #landuse change and terrestrial #carbon & biodiversity loss. But its environment #footprint can be reduced by sustained #productivity growth: Globally, historic crop improvement (1961-2015) resulted net in less #cropland expansion, lower GHG #emissions, and more plant & animal species being saved from extinction (plus the higher #yields generally lowered commodity prices of staple crops): doi.org/10.1073/pnas.240483912 #biodiversity #foodsecurity

Public
Alexander J. Stein

Intensifying #droughts threaten future #foodsecurity: Soybeans, #maize & spring #wheat are most drought-sensitive & prone to severe #yields losses, esp. in US, #Argentina, #Australia & China. GHG #emissions intensify the risk of #drought significantly... (1/2) doi.org/10.3390/atmos16010034 #USA #China

MDPIIntensified Drought Threatens Future Food Security in Major Food-Producing CountriesDrought is one of the most severe natural disasters globally, with its frequency and intensity escalating due to climate change, posing significant threats to agricultural production. This is particularly critical in major food-producing regions, where drought profoundly impacts crop yields. Such impacts can trigger food crises in affected regions and disrupt global food trade patterns, thereby posing substantial risks to global food security. Based on historical data, this study examines the yield response characteristics of key crops—maize, rice, soybean, spring wheat, and winter wheat—under drought conditions during their growth cycles, highlighting variations in drought sensitivity among major food-producing countries. The findings reveal that maize and soybean yield in China, the United States, and Brazil are among the most sensitive and severely affected by drought. Furthermore, using precipitation simulation data from CMIP6 climate models, the study evaluates drought trends and associated crop yield risks under different future emission scenarios. Results indicate that under high-emission scenarios, crops face heightened drought risks during their growth cycles, with China and the United States particularly vulnerable to yield reductions. Additionally, employing copula functions, the study analyzes the probability of simultaneous drought occurrences across multiple countries, shedding light on the evolving trends of multicountry drought events in major food-producing regions. These findings provide a scientific basis for assessing global food security risks and offer policy recommendations to address uncertainties in food supply under climate change.
Public
Alexander J. Stein

Food production: There was no slowdown in global #yields growth over 60 years; any slowdown in specific #commodities or regions was offset by gains in others. But with #climatechange & growing demand, future #sustainability of production & affordability of food are uncertain: doi.org/10.1371/journal.pone.0

doi.orgYield growth patterns of food commodities: Insights and challengesUnderstanding global food production and productivity patterns is crucial for policy and investment decisions aimed at addressing poverty, food insecurity, and climate change. This paper develops comprehensive calorific-based production and yield indices for 144 crops, covering 98% of global agricultural land and food output. These indices provide standardized measures across various crops and varieties, facilitating comparison of agricultural productivity and consolidating country and regional contributions to global food production. Utilizing a Box-Cox transformation, we find that a linear model best approximates yield growth. Our findings reveal that, at an aggregate level, there has been no discernable slowdown in global yield growth over the past six decades. This translates into an average annual yield increase equivalent to nearly 33 kilograms of wheat per hectare. These results suggest that any observed deceleration in specific commodities, regions, or countries, has been offset by gains in others. While these findings are reassuring from a global food supply perspective, caution is warranted about the sustainability of production and the affordability of food. These concerns are particularly relevant as global food demand increases due to population and income growth, and as the pressures from climate change intensify. The study underscores the importance of adopting strategic and sustainable agricultural practices to ensure continued food security in the face of evolving global challenges.
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