Research press release


Nature Climate Change

Management boundaries


今回、Sebastiaan Luyssaertたちは、北米とユーラシアの温帯地域に関する人工衛星観測結果と地上測定結果を組み合わせて、土地被覆と土地管理形態の変化が直接的に気候に与える影響を調べた。いずれの場合でも、寒冷化の影響と温暖化の影響を全て考慮に入れた正味の影響は、摂氏約1.7度の局地的温暖化だった。


Changes in the management of existing agricultural land can warm the local climate to an extent similar to that resulting from the conversion of natural vegetation to farmland, according to research published online this week in Nature Climate Change. These findings demonstrate the challenges of meeting growing food demand without exacerbating climate change.

Sebastiaan Luyssaert and colleagues combined satellite observations with ground measurements from temperate regions of North America and Eurasia to investigate the direct climatic effects of changes in land cover and land management practice. In both cases the net effect - when all cooling and heating influences were accounted for - was localized warming of around 1.7 degrees Celsius.

Consequently, the intensification of agriculture to meet growing food demand will have direct climatic implications that should be considered alongside greenhouse gas emissions when weighing up different policy options.

doi: 10.1038/nclimate2196


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