The niche of annual mixed-seeding meadow in response to density in alpine region of the Qilian Mountain, China The Relationship Between the Clonal Growth and the Density of Adult Shoots with Different Leaf Age in Phyllostachys pubescens Mazel Density-Dependent Rule of Natural Kochia sieversiana Population in an Alkaline Meadow in the Songnen Plain of China Density-Dependent Sex Ratios for Dioecious Tree Species Populus davidiana and Fraxinus mandshurica A phylogenetic subclade analysis of range sizes of endemic woody seed plant species of China: Trait conservatism, diversification rates and evolutionary models Response to cutting treatment of interspecific relationships of leguminous forages in semiarid regions Dynamics of population biomass and its density-density dependent regulation in alder and cypress mixed forest