Forest understory clover populations in enriched CO2 and O3 atmospheres: Interspecific, intraspecific, and indirect effects

Caroline S. Awmack; Edward B. Mondor; Richard L. Lindroth

doi:10.1016/j.envexpbot.2006.04.003

Treesearch

Forest understory clover populations in enriched CO₂ and O₃ atmospheres: Interspecific, intraspecific, and indirect effects

Informally Refereed

Authors:

Caroline S. Awmack, Edward B. Mondor, Richard L. Lindroth

Year:

2007

Type:

Scientific Journal

Station:

Northern Research Station

DOI:

https://doi.org/10.1016/j.envexpbot.2006.04.003

Source:

Environmental and Experimental Botany. 59: 340-346.

Download (PDF 579 KB)

Download (PDF 579 KB): https://research.fs.usda.gov/download/treesearch/34628.pdf

Abstract

The effects of CO₂ and tropospheric O³ on forest trees are increasingly the subject of experimental evaluation. Little is known, however, about the effects of these gases on understory plant taxa. At the Aspen free-air CO₂ and O₃enrichment (Aspen FACE) site we assessed colonization and establishment of two common forest understory species, red (Trifolium pratense) and white (Trifolium repens) clover. To better understand these natural patterns in red clover, the more responsive of the two clover species, we also assessed intraspecific variation in growth performance to altered atmospheric conditions.

Keywords

carbon dioxide, climate change, genetic variation, greenhouse gas, indirect effect ozone

Citation

Awmack, Caroline S.; Mondor, Edward B.; Lindroth, Richard L. 2007. Forest understory clover populations in enriched CO2 and O3 atmospheres: Interspecific, intraspecific, and indirect effects. Environmental and Experimental Botany. 59: 340-346.