Daily Archives: 15th of October 2011

Leaf traits, growth allometry and competition

Leaf traits, growth allometry and competition

Leaf traits, growth allometry and competition

The ability to simulate plant competition accurately is essential for plant functional-type (PFT)-based models used in climate-change studies. Yu and Gao investigate competition between oak (Quercus liaotungensis) and birch/poplar (Betula platyphylla/Populus davidiana) in a temperate forest using a PFT-based ecosystem model and determine that higher assimilation rates of birch/popular lead to its dominance during early successional stages when competition is relatively low. However, with higher drought tolerance/resistance and larger allocation to leaves/roots, oak out-competes the other species in the middle and late successional stages when there is intensive competition for below-ground resources.