Complementary responses of morphology and physiology enhance the stand‐scale production of a model invasive species under elevated CO2 and nitrogen
Complementary responses of morphology and physiology enhance the stand‐scale production of a model invasive species under elevated CO2 and nitrogen
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形态学和生理学的互补反应增强了模型入侵物种在高二氧化碳和氮条件下的标准规模生产
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发表时间：
2018
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通讯作者：
J. Caplan
中科院分区：
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作者：
Thomas J. Mozdzer;J. Caplan
1. 众所周知，大气中二氧化碳（eCO 2 ）浓度的升高和氮（N）的富集可以提高植物的生产力和入侵能力。然而，它们对植物生产力的相互作用影响的影响尚未得到很好的理解，特别是在林分尺度上，大概是因为很少在实地一起研究或在林分水平上评估对这些全球变化因素的形态和生理反应。 2. 我们首先确定了叶水平形态和生理性状如何响应环境和升高的 CO 2 和 N 的因子组合。我们从模型入侵物种 Phragmites australis（普通芦苇）收集了性状数据，这些数据在长期全球变化实地实验中测量了 3 年多。然后，我们将南方松树冠的性状数据和附加描述结合到碳同化模拟模型中，以确定形态学如何
1. Elevated atmospheric carbon dioxide (eCO 2 ) concentrations and nitrogen (N) en richment are known to enhance plant productivity and invasion. However, the implications of their interactive effects for plant productivity are not well under -stood, especially at the stand scale, presumably because morphological and physi ological responses to these global change factors are rarely studied together in the field or assessed at the stand level. 2. We first determined how leaf-level morphological and physiological traits re sponded to factorial combinations of ambient and elevated CO 2 and N. We col lected trait data from the model invasive species Phragmites australis (common reed) that were measured over 3 years in a long-term global change field experi ment. We then combined the trait data and additional descriptions of P. australis canopies in a simulation model of carbon assimilation to determine how morphol ogy