THE RELATIONSHIP OF PLANT SPECIES DIVERSITY TO ECOSYSTEM FUNCTION IN RELATION TO SOIL CONSERVATION IN SEMI_HUMID EVERGREEN FORESTS, YUNNAN PROVINCE,CHINA The present situation and prospect of studies on evolutionary ecology of seed size variation The research progress of mesophyll conductance Humus respiration and its ecological significance Morphological and Anatomical Characters of Leaf in Viburnum rhytidophyllumand Its Ecological Significance The role of arbuscular mycorrhizal fungi in soil nitrogen cycling The ecological significance of accumulated sand-belts along the oasis edge of Hexi of Gansu Pollen Morphology of Plants from the Hengduan Mountains and Their Ecological Significance The Architecture of Leaves from the Dominant and Common Species of Sei-Humid Evergreen Broad-Leaved Forest Occurring in Centre Yunnan Ecological significance,characteristics and types of disturbance Phytogenic isoprene and its ecological significance Abnormal Litterfall and Its Ecological Significance Pollen Morphology of Plants from the Hengduan Mountains and Their Ecological Significance Leaf Anatomic Structure of Wikstroemia indica (L.) C. A. Mey. and Its Ecological Significance Comparison of ecological significance of landscape diversity changes in karst mountains: a case study of 4 typical karst area in Guizhou Province Dynamics and ecological significance of nitrogen wet-deposition in Taihu Lake region—Taking Changshu Agro-ecological Experiment Station as an example Studies on the Spore Morphology of Selaginella sinensis and Its Ecological Significance A STUDY ON THE SEEDS MICRO-MORPHOLOGICAL CHARACTERISTICS OF PEGANUM FROM CHINA NORTHWEST AND ITS TAXONOMIC AND ECOLOGICAL SIGNIFICANCE