Photosynthesis traits of the dominant plant species seedlings in the secondary forest in Qiandao Lake and its significance in the succession of forest community(千岛湖次生林优势种幼苗光合特性及其对群落演替的指示意义)

利用LCA-4型便携式全自动光合测定仪,于2009年8月下旬晴朗天气,对千岛湖次生林优势种马尾松(Pinus massoniana)、苦槠(Castanopsis sclerophylla)、石栎(Lithocarpus glabra)、青冈(Cyclobalanopsis glauca)幼苗在林窗、林下2种生境中的光合生理生态特性进行了研究.结果表明:(1)在林窗中马尾松光合日进程为“单峰”曲线,其他3种均为“双峰”曲线,有明显光合“午休”现象.在林下这4种幼苗的光合日进程均为“单峰”曲线,但曲线平缓,峰值不明显.在林窗中青冈的日均Pn显著低于其他3物种,而在林下马尾松的日均Pn显著低于其余...

Full description

Bibliographic Details
Main Authors: JINZe-xin(金则新), XIONGNeng(熊能)
Format: Article
Language:zho
Published: Zhejiang University Press 2011-09-01
Series:Zhejiang Daxue xuebao. Lixue ban
Subjects:
Online Access:https://doi.org/10.3785/j.issn.1008-9497.2011.05.017