Distribution pattern of leaf traits in canopy of typical broad leaved trees in Taiyue Mountain Leaf morphology and photosynthetic characteristics of seedlings of a deciduous and an evergreen broad-leaved species under different light regimes in subtropical Trade-off between Resource Utilization and Coexistence Status of Roegneria kamoji and Polygonum sphaerostachyum of Alpine Meadow in the South of Gansu Effects of N and P additions on foliar stoichiometry and photosynthetic characteristics of Potentilla fruiticosa Content and Allocation of Nitrogen in Leaves of 8 Tree and Shrub Species of the Evergreen Broad-leaved Forest and the Relations with Their Photosynthetic Abilities Eco-physiological traits of different-age needles of Pinus sylvestris var. mongolica plantation in Horqin sandy land of China Photosynthesis-nitrogen relationship in evergreen and deciduous tree species at different altitudes on Mao’er Mountain, Guangxi Relationship between photosynthetic nitrogen use efficiency and nitrogen allocation in photosynthetic apparatus of winter oilseed rape under different nitrogen levels Relationships between Leaf Nitrogen Content and Photosynthetic Characteristics in Different Plant Functional Types