Optimal climate intervention scenarios for crop production vary by nation
Optimal climate intervention scenarios for crop production vary by nation
复制标题
作物生产的最佳气候干预情景因国家而异
DOI:
10.1038/s43016-023-00853-3
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发表时间:
2023
期刊:
影响因子:
23.2
通讯作者:
Rabin, Sam S.
中科院分区:
文献类型:
--
作者:
Clark, Brendan;Xia, Lili;Robock, Alan;Tilmes, Simone;Richter, Jadwiga H.;Visioni, Daniele;Rabin, Sam S.
Stratospheric aerosol intervention (SAI) is a proposed strategy to reduce the effects of anthropogenic climate change. There are many temperature targets that could be chosen for a SAI implementation, which would regionally modify climatically relevant variables such as surface temperature, precipitation, humidity, total solar radiation and diffuse radiation. In this work, we analyse impacts on national maize, rice, soybean and wheat production by looking at output from 11 different SAI scenarios carried out with a fully coupled Earth system model coupled to a crop model. Higher-latitude nations tend to produce the most calories under unabated climate change, while midlatitude nations maximize calories under moderate SAI implementation and equatorial nations produce the most calories from crops under high levels of SAI. Our results highlight the challenges in defining ‘globally optimal’ SAI strategies, even if such definitions are based on just one metric.
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