Given the key functional role of understorey plant communities and the substantial extent of forest cover at the global scale, investigating understorey community responses to elevated CO₂ (eCO₂) concentrations, and the role of soil resources in these responses, is important for understanding the ecosystem-level consequences of rising CO₂ concentrations for forest ecosystems. Here, we evaluated how experimentally manipulating the availabilities of the two most limiting resources in an extremely phosphorus-limited eucalypt woodland in eastern Australia (i.e. water and phosphorus) can modulate the response of the understorey community to eCO₂ in terms of germination, phenology, cover, community composition and leaf traits.

中文翻译：

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CO ₂浓度升高下澳大利亚桉树林下层植物群落的组装受水和磷的有效性调节

鉴于底层植物群落的关键功能作用以及全球范围内大量森林覆盖的情况，调查底层群落对升高的CO ₂（eCO ₂）浓度的反应以及土壤资源在这些反应中的作用，对于理解植物群落的重要意义。 CO ₂浓度升高对森林生态系统的生态系统影响。在这里，我们评估如何实验操作两个大部分限制了资源的可用性在极其磷有限桉树林地澳大利亚东部（即水和磷）可以调节下层社会生态的响应₂中萌发，物候方面，覆盖，群落组成和叶片性状。