Average daily Pn of the three evergreen broad-leaved species were higher than layer species such as Sargentodoxa cuneata and deciduous species such as Heptacodium miconioides.
东南石栎等常绿树种日均凈光合速率比大血藤等层间植物和七子花等落叶植物高。
Nanjing area is the northern boundary of northern subtropical zone where some evergreen broad-leaved species are distributed in.