来自全球的研究人员通过分析483个热带树木年轮序列，首次系统评估了1930年以来干旱对热带森林茎生长的长期影响。研究发现，在最干旱的年份中，茎生长仅出现2.5%（95%CI:2.2-2.7%）的微弱下降，且这种下降通常不持续到干旱年后。值得注意的是，裸子植物（gymnosperms）比被子植物（angiosperms）更易受旱季干旱影响，而雨季干旱对后者影响更大。该研究揭示了热带森林碳汇功能对历史 ...

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Phylogenetic relationships of 27 taxa of extant and extinct lignophytes were assessed in a numerical cladistic analysis using 65 characters. The analysis yielded 12 most parsimonious trees, where ...

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