Grass communities on Oahu

[摘要] Although their water regime was studied only for a special
soil, the Dark Magnesium Clay, it is possible that the predominant
occurrence of Chloris barbata on flatland habitats is related to periodic
seasonal inundations. Under such conditions Heteropogon contortus may
be less competitive. The periodic seasonal inundations may explain why
Chloris barbata and Dichanthium aristatum were dominant on the flatland
and never on the hillsides, where Heteropogon contortus was dominant
instead with occasional plants of Chloris barbata.

[关键词] Grass communities