News Release

气候变暖与土壤营养物平衡

Peer-Reviewed Publication

Proceedings of the National Academy of Sciences

Experimental Warming and Carbon Dioxide Enrichment Plots

image: Experimental warming and carbon dioxide enrichment plots. view more 

Credit: Image courtesy of Genevieve L. Noyce.

一项实验性的变暖与二氧化碳富集研究发现,在至多1.7摄氏度的变暖条件下,莎草植物的根生长多于芽生长,这提示植物对于氮的需求超过了土壤氮供应;然而,随着进一步的变暖和二氧化碳富集,莎草把更多的生长分配给了芽而非根,这提示氮供应超过了植物需求,并且暗示在变暖条件下,未施肥土壤中的历史土壤氮缺乏可能逆转。

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