Effects of ozone depletion and increased ultraviolet-B radiation on northern vegetation Lars Olof Bjürn,Terry V. Callaghan, Carola Gehrke,Dylan Gwynn-Jones,John A. Lee,Ulf Johanson,Mats Sonesson, Nicholas D. BuckPolar Research(1999)引用 0|浏览0暂无评分AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要