Elevated-CO2 effects on epiphytic bryophytes: the Moss-FACE

Increasing atmospheric CO2 levels can directly influence plant performance through carbon fertilization or through physiological acclimatization changing nutrient or water use efficiency. Bryophytes may differ fundamentally from vascular plants in their response to CO2-enrichment, because they have fewer options for actively regulating their water and gas exchange.

We are currently running a pilot project for a free-air CO2 enrichment (FACE) experiment with epiphytic mosses in situ. Goal of the experiment is to study short- and long-term effects of predicted future CO2 levels on the growth and metabolism of these bryophytes.

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