Relocating croplands could drastically reduce the environmental impacts of global food production

@article{Beyer2022RelocatingCC,
  title={Relocating croplands could drastically reduce the environmental impacts of global food production},
  author={Robert M. Beyer and Fangyuan Hua and Philip A. Martin and Andrea Manica and Tim Tito Rademacher},
  journal={Communications Earth \& Environment},
  year={2022},
  volume={3}
}
Agricultural production has replaced natural ecosystems across the planet, becoming a major driver of carbon emissions, biodiversity loss, and freshwater consumption. Here we combined global crop yield and environmental data in a ~1-million-dimensional mathematical optimisation framework to determine how optimising the spatial distribution of global croplands could reduce environmental impacts whilst maintaining current crop production levels. We estimate that relocating current croplands to… 

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References

SHOWING 1-10 OF 108 REFERENCES

Increased food production and reduced water use through optimized crop distribution

Growing demand for agricultural commodities for food, fuel and other uses is expected to be met through an intensification of production on lands that are currently under cultivation. Intensification

Global food demand and the sustainable intensification of agriculture

Per capita demand for crops, when measured as caloric or protein content of all crops combined, has been a similarly increasing function of per capita real income since 1960 and forecasts a 100–110% increase in global crop demand from 2005 to 2050.

Global agriculture and carbon trade-offs

This research identifies where are the best places to expand agricultural production that minimize the loss of one ecosystem service, carbon storage, and shows that selectively choosing where to expand agriculture saves over $1 trillion (2012 US dollars) worth of carbon storage relative to a proportional expansion.

Trading carbon for food: Global comparison of carbon stocks vs. crop yields on agricultural land

By factoring crop yield into the analysis, this work specifies the tradeoff between carbon stocks and crops for all areas where crops are currently grown and thereby, substantially enhance the spatial resolution relative to previous regional estimates.

Constraints and potentials of future irrigation water availability on agricultural production under climate change

This work compares ensembles of water supply and demand projections driven by ensemble output from five global climate models and suggests surplus water supply could in principle support a net increase in irrigation, although substantial investments in irrigation infrastructure would be required.

Spatial decoupling of agricultural production and consumption: quantifying dependences of countries on food imports due to domestic land and water constraints

In our globalizing world, the geographical locations of food production and consumption are becoming increasingly disconnected, which increases reliance on external resources and their trade. We

How can higher-yield farming help to spare nature?

This work offers a first description of four categories of “active” land-sparing mechanisms that could overcome rebound effects by linking yield increases with habitat protection or restoration.

Strategic approaches to restoring ecosystems can triple conservation gains and halve costs

Using an actual large-scale restoration target of the Atlantic Forest hotspot, it is shown that this approach can deliver an eightfold increase in cost-effectiveness for biodiversity conservation compared with a baseline of non-systematic restoration.

Temperature increase reduces global yields of major crops in four independent estimates

Investigating the impacts of temperature on yields of the four crops by compiling extensive published results from four analytical methods consistently showed negative temperature impacts on crop yield at the global scale, generally underpinned by similar impacts at country and site scales.

Potential for sustainable irrigation expansion in a 3 °C warmer climate

By identifying where irrigation can be expanded under a warmer climate, this work may serve as a starting point for investigating socioeconomic factors of irrigation expansion and may guide future research and resources toward those agricultural communities and water management institutions that will most need to adapt to climate change.
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