南京林业大学学报（自然科学版）Issue(2)：169-174,6.DOI:10.3969/j.issn.1000-2006.2014.02.033
太岳山油松人工林冠下光环境特征与冠层结构
Measurement and analysis on understory light environment and canopy structure of Pinus tabulaeformis plantation in the Taiyue Mountain
摘要
Abstract
In this paper, the understory light characters were measured and analyzed in Pinus tabulaeformis plantation ( juvenile and mid-aged stands) with WinScanopy instrument in Mt. Taiyue, Shanxi province, China. The relationship between canopy structure and light characters were also analyzed. The results indicated that stand openness ( 9�68%-16�20%) decreased, whereas the LAI in the stand (2.000-3.784) increased with stand density increasing. The total PPFD above canopy ranged from 25.37 to 29.10 MJ/( m2·d) in P. tabulaeformis plantation. And the total PPFD under canopy deceased with the stand density ranged from 4.22 to 11.07 MJ/( m2·d) . The light extinction ratio enlarged with the stand density increasing. And the light extinction coefficient of mid-aged stand (0.59) was stronger than that in the juvenile stand (0.27). The direct PPFD was the main component of total PPFD under canopy.关键词
油松人工林/光环境/冠层结构/叶面积指数/太岳山Key words
Pinus tabulaeformis plantation/light environment/canopy structure/LAI/Taiyue Mountain分类
农业科技引用本文复制引用
张彦雷,康峰峰,韩海荣,尹学哲,程小琴,李勇,周彬,刘可,孙敬军..太岳山油松人工林冠下光环境特征与冠层结构[J].南京林业大学学报（自然科学版）,2014,(2):169-174,6.基金项目
国家林业局“948”项目（2010-4-15）；国家林业公益性行业科研专项项目 （）
