Effect of Deforestation on Watershed Hydrological Process in Ziwuling on the Loess Plateau Forest Transition in Xishuangbanna, Yunnan Effects of deforestation on the genetic structure of Castanopsis sclerophylla RELATION OF LAND USE AND COVER CHANGE TO TOPOGRAPHY IN XISHUANGBANNA, SOUTHWEST CHINA Effects of land use change on carbon storage in terrestrial ecosystem EFFECTS ON FLOOD AND DROUGHT SINCE THE DESTRUCTION OF FORESTS IN CHINA: A DISCUSSION ON HYDRO-CLIMATIC EFFECTS OF FOREST Diversity and Ecology of Arbuscular Mycorrhizal Fungi in Dujiangyan DEFINITIONS OF AFFORESTATION, REFORESTATION AND DEFORESTATION IN RELATIONS TO CARBON ACCOUNTING