Effects of elevated CO2 and cutting frequency on plant community structure in a temperate grassland

摘要

Monoliths of a fertile, N limited, C3 grassland community were subjected (or not) to an atmospheric CO2 enrichment (600 mumol mol(-1) ) using a Mini-FACE system, from August 1998 to June 2001 and were subjected to two contrasting cutting frequencies (3 and 6 cuts per year). We report here the effects of the CO2 and cutting frequency factors on the plant community structure and its diversity.