What will be the future of rice? Rice yields fall by 40% Arsenic is seriously above the standard

A new study published in Nature Communications by Stanford University shows that as climate change changes, yields in major rice-growing areas with high levels of arsenic in the soil will drop dramatically and threaten critical food supplies, foreign media reported. Rice is known to be the world’s largest staple crop, with half of the world’s population feeding on rice.

Arsenic is a naturally occurring semi-metallic chemical found in most soils and sediments, but usually in a form that is not absorbed by plants, especially rice. Long-term exposure to arsenic can lead to skin damage, cancer, and lung disease, which can eventually lead to death.

Scientists have created future climatic conditions in greenhouses, based on projections by the Intergovernmental Panel on Climate Change, and experiments in rice production in these exploration of future climate conditions have shown.

未来的大米会怎样?水稻产量下降40% 砷严重超标

Experiments have shown that rice production could fall by about 40 per cent by 2100, with devastating consequences in parts of the world that rely on rice as a basic food source. In addition, changes in soil processes due to warmer temperatures will result in twice the level of toxic arsenic in rice as today’ rice.

“By 2100, we estimate that the world’s population will be about 10 billion, which means that 5 billion of us depend on rice and 2 billion people may not be able to feed themselves,” said study co-author Professor Scott Fendorf of Stanford University. We must be aware of these upcoming challenges so that we can be prepared to adapt. ”

The researchers paid particular attention to rice, which is grown in a environment that helps to release arsenic from the soil, making it particularly sensitive to arsenic absorption. Although many food crops today contain small amounts of arsenic, some growing areas are more susceptible to arsenic than others.

In the future, soil changes due to higher temperatures and flooding conditions will lead to higher levels of arsenic absorption in rice plants, a problem exacerbated by the use of naturally occurring high arsenic irrigation water, which can be exacerbated by the use of naturally occurring high arsenic irrigation water. While these factors do not affect all global commodities in the same way, they extend to other flooded crops, such as taro and lotus.

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