Genetic diversity of leaves anatomical traits in different provenances of Liriodendron chinense seedlings Morphological and Anatomical Traits of Poplar Fine Roots in Successive Rotation Plantations Different Drought-adaptation Strategies as Characterized by Hydraulic and Water-relations Traits of Evergreen and Deciduous Figs in a Tropical Karst Forest Morphological and physiological responses of current sophora davidii seedlings to drought stress