Spatiotemporal Patterns and Dynamics of Species Richness and Abundance of Woody Plant Functional Groups in a Tropical Forest Landscape of Hainan Island, South China Spatial variation of soil water and the key impact factors in dry season in Karst cluster-peak-depression region Dynamicss of temperature and humidity in underlaying surface of different landscape type in winter in Beijing City, China A hierarchical landscape classification system for urban regions with high- resolution remote sensing image