LANDSCAPE PATTERN AND DYNAMICS IN A NATURAL TROPICAL FOREST OF BAWANGLING, HAINAN ISLAND, CHINA Characteristics of soil seed bank and standing vegetation change in sandy grasslands along a desertification gradient Spatial relationships between the abundance of aboveground and belowground soil mite communities, and environmental factors in a farmland on the Sanjiang Plain, China The spatial relationship analysis of rural per capital revenue based on GIS in Zulihe River basin, Gansu Province Spatial relationships among Empoasca vitis (Gothe) and Toxoptera aurantii (Boyer) and natural enemies in tea gardens of autumn-winter season in Hefei suburban A study on the spatial relationship between agricultural land use intensity and agro-climatic suitability in China