Response of leaf morphometric traits of Quercus species to climate in the temperate zone of the North-South Transect of Eastern China Relationships between chemical compositions of Quercus species seeds and climatic factors in temperate zone of NSTEC Phenological change of main vegetation types along a North-South Transect of Eastern China Stoichiometric characteristics of leaf carbon, nitrogen, and phosphorus of 102 dominant species in forest ecosystems along the North-South Transect of East China.