文献类型：会议论文

英文题名：The photosynthetic characteristics of moso bamboo (Phyllostachys pubescens) for different canopy leaves

作者：Cao, Yong Hui[1] Zhou, Ben Zhi[1] Wang, Xiao Ming[1] Wang, Gang[1]

第一作者：曹永慧

机构：[1] Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, China

会议论文集：Advances in Environmental Technologies

会议日期：April 19, 2013 - April 21, 2013

会议地点：Guilin, China

语种：英文

外文关键词：30m observation tower; Canopy vertical change; Different ages of bamboo; Moso bamboo; Photosynthetic characteristics; Phyllostachys pubescens

年份：2013

摘要：The carbon sequestration ability of different ages of Phyllostachys pubescens was analyzed at three canopy layers with a LI-6400 portable photosynthesis system. Under different photosynthetically active radiation (PAR), the net photosynthetic rate (Pn) of upper and middle layers of 3-year old bamboo were significantly higher than that of lower layer. When the light was greater than 800 umol·m-2·s-1, the Pn of bamboo in middle layer was in the order of 3-year-old > 4-year- old >2-year-old >7-year-old bamboo. When the light was greater than 500 umol·m-2·s-1, Pn of lower layer was in the order of 3-year old > 4-year old >2-year old, while in the order of 3-year-old > 2-year -old >4-year-old bamboo during the low light range (PAR-2·s-1).The chlorophyll a/b value, maximum net photosynthetic rate, light compensation point and light saturation point values change were reduced gradually with the decrease of canopy height. ? (2013) Trans Tech Publications, Switzerland.