太岳山油松人工林冠下光环境特征与冠层结构

张彦雷; 康峰峰; 韩海荣; 尹学哲; 程小琴; 李勇; 周彬; 刘可; 孙敬军

doi:10.3969/j.issn.1000-2006.2014.02.033

张彦雷,康峰峰,韩海荣,尹学哲,程小琴,李勇,周彬,刘可,孙敬军

南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (02) : 169-174.

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南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (02) : 169-174. DOI: 10.3969/j.issn.1000-2006.2014.02.033

研究简报

太岳山油松人工林冠下光环境特征与冠层结构

张彦雷¹,康峰峰¹,韩海荣^1*,尹学哲¹,程小琴¹,李勇¹,周彬¹,刘可¹,孙敬军²

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Measurement and analysis on understory light environment and canopy structure of Pinus tabulaeformis plantation in the Taiyue Mountain

ZHANG Yanlei¹,KANG Fengfeng¹,HAN Hairong^1*,YIN Xuezhe¹,CHENG Xiaoqin¹,LI Yong¹, ZHOU Bin¹,LIU Ke¹, SUN Jingjun²

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摘要

为了揭示林分冠层结构和林内光环境特征的关系,利用冠层分析仪(WinScanopy)对比分析了山西省太岳山马泉林场油松人工林(幼龄林和中龄林)冠层结构及林分光环境特征。结果表明:在林分密度逐步增大情况下,林分开度呈现下降趋势,总体分布范围为9.68%～16.20%; 叶面积指数随林分密度的增大相应增加,总体分布范围为2.000～3.784。林分冠上总辐射分布范围为25.37～29.10 MJ/(m²·d),林下总辐射为4.22～11.07 MJ/(m²·d)。林下总辐射随林分密度的增大而降低,表明林分对光辐射的截获能力随之增强。幼龄林消光系数为0.27,中龄林消光系数为0.59,中龄林林分消光能力大于幼龄林林分。林下直射是林下总辐射的主要组成部分。

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.

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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, 38(02): 169-174 https://doi.org/10.3969/j.issn.1000-2006.2014.02.033

ZHANG Yanlei,KANG Fengfeng,HAN Hairong,YIN Xuezhe,CHENG Xiaoqin,LI Yong, ZHOU Bin,LIU Ke, SUN Jingjun. Measurement and analysis on understory light environment and canopy structure of Pinus tabulaeformis plantation in the Taiyue Mountain[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2014, 38(02): 169-174 https://doi.org/10.3969/j.issn.1000-2006.2014.02.033

中图分类号： S718

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基金

收稿日期:2013-05-31 修回日期:2013-10-16
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(201104008)
第一作者:张彦雷,硕士生。*通信作者:韩海荣,教授。E-mail: hanhr@bjfu.edu.cn。
引文格式:张彦雷,康峰峰,韩海荣,等. 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,2014,38(2):169-174.