community successional series in the Ziwuling area on the Loess Plateau Studies on Some Ecological Questions of Gordonia acumenata FOREST SUCCESSION AT DINGHUSHAN, GUANGDONG, CHINA The litter-fall of representative forests of successional series in Dinghushan STUDIES ON THE REPRODUCTIVE ECOLOGY OF Gordonia Acuminata POPULATION ⅡTHE PATTERNS OF REPRODUCTIVE ALLOCATION ON THE BIOMASS IN THE POPULATION ECOLOGICAL STUDIES ON THE PLANT COMMUNITYSUCCESSION ON THE ABANDONED CROPLAND INTAIBAISHAN,QINLING MOUNTAINSⅡ.THE COMMUNITY α DIVERSITY FEATURE OF THE SUCCESSIONAL SERIES A comparation of respiration characteristics between Schima superba and Castanopsis fargesii in successional series of evergreen broad leaved forest