Biomass Allocation and Resource Use of Tilia Amurensis Rupr. Juvenile Under Different Planting Effects of elevated atmospheric CO2 on Hill’s reaction activity and Ca2+/Mg2+-ATPase activity of Ginkgo biloba L. in two consecutive growth seasons Effects of light regimes on photosynthetic characteristics and antioxidant system in seedlings of two alder species Response of photosynthesis and antioxygenic enzymes in seedlings of three tropical forest tree species to different light environments