Climate impacts on global agriculture emerge earlier in new generation of climate and crop models

www.nies.go.jp

最新の予測モデルで穀物の収量の予測をしています。成果を見に行くには8.99ドル必要ですので、今回は原文にはあたらすabstractのみです。

日本語のabstractは上記サイトに、英語のabstractは下記。

Climate impacts on global agriculture emerge earlier in new generation of climate and crop models | Nature Food

abstractの一部を抜粋

Results suggest markedly more pessimistic yield responses for maize, soybean and rice compared to the original ensemble.

Mean end-of-century maize productivity is shifted from +5% to −6% (SSP126) and from +1% to −24% (SSP585)—explained by warmer climate projections and improved crop model sensitivities. トウモロコシは、SSP126(+1.1℃にとどまるシナリオ)でも-6%、SSP585(+3.9℃)では-24%

In contrast, wheat shows stronger gains (+9% shifted to +18%, SSP585), linked to higher CO2 concentrations and expanded high-latitude gains. 小麦は増えます。

The ‘emergence’ of climate impacts consistently occurs earlier in the new projections—before 2040 for several main producing regions. While future yield estimates remain uncertain, these results suggest that major breadbasket regions will face distinct anthropogenic climatic risks sooner than previously anticipated.気候変動の影響が早まっている。

今回の研究では、栽培地域の分布や栽培技術は将来も現在と同じと仮定しています。この部分は今後の各国の対応等で変化してきます。何とか影響を軽減してもらいたいものです。