Comparison of leaf functional traits in different forest communities in Mt. Dongling of Beijing Influence on Leaf Function Traits and Modules of Mowing Intensity in Seriphidum transiliense Specific leaf area and leaf dry matter content of Nitraria tangutorum in the artificially simulated precipitation Specific leaf area and leaf dry matter content of some plants in different dune habitats Effects of grazing disturbance on leaf traits and their interrelationships of plants in desert steppe. Leaf traits of 66 herbaceous species in Songnen grassland in Northeast China