Volume 27 Issue 3
Jun.  2010
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YAN En-rong, ZHONG Qiang, ZHOU Wu, GUO Ming, WANG Liang-yan, YUAN Shi-jie. Mechanical damage in relation to tree characteristics after a catastrophic freeze in Tiantong Region,Zhejiang Province[J]. Journal of Zhejiang A&F University, 2010, 27(3): 360-366. doi: 10.11833/j.issn.2095-0756.2010.03.007
Citation: YAN En-rong, ZHONG Qiang, ZHOU Wu, GUO Ming, WANG Liang-yan, YUAN Shi-jie. Mechanical damage in relation to tree characteristics after a catastrophic freeze in Tiantong Region,Zhejiang Province[J]. Journal of Zhejiang A&F University, 2010, 27(3): 360-366. doi: 10.11833/j.issn.2095-0756.2010.03.007

Mechanical damage in relation to tree characteristics after a catastrophic freeze in Tiantong Region,Zhejiang Province

doi: 10.11833/j.issn.2095-0756.2010.03.007
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  • Corresponding author: YAN En-rong
  • Publish Date: 2010-06-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Mechanical damage in relation to tree characteristics after a catastrophic freeze in Tiantong Region,Zhejiang Province

doi: 10.11833/j.issn.2095-0756.2010.03.007
    Corresponding author: YAN En-rong

Abstract: In early 2008 forest ecosystems in subtropical China were subjected to catastrophic heavy snow and freezing rain. The damage index and mechanical damage tolerance of common evergreen species (Cryptomeria fortunei,Schima superba,Pseudolarix kaempferi,Machilus thunbergii,and Cyclobalanopsis myrsinaefolia) in eight plantations of the Tiantong Region,Zhejiang Province,were determined and then compared with and correlated to tree traits (leaf area,specific leaf area,leaf dry matter content,twig dry matter content,twig density,and trunk density). Results showed that:1) the damage index was highest in Cr. fortunei(0.54),intermediate in S. superba (0.45),and lowest in P. kaempferi with damage severity for S. superba and M. thunbergii seedlings higher in monoculture forests than in mixed forests. Also,2) for mechanical damage tolerance,leaf area and specific leaf area were:S. superba>M. thunbergii>Cy. myrsinaefolia,but twig dry matter content and twig density were:Cy. myrsinaefolia>M. thunbergii>S. superba. Finally,3) the damage index was positively and significantly correlated with leaf area (r = 0.95,P<0.001) and specific leaf area (r = 0.86,P<0.01) but negatively and significantly correlated with twig dry matter content (r = 0.73,P<0.05) and twig density(r = 0.97,P<0.001). Thus,for evergreen trees in this area,there should be a ecological linkage between tree characteristics and the mechanical damage index.[Ch,2 fig. 3 tab. 12 ref.]

YAN En-rong, ZHONG Qiang, ZHOU Wu, GUO Ming, WANG Liang-yan, YUAN Shi-jie. Mechanical damage in relation to tree characteristics after a catastrophic freeze in Tiantong Region,Zhejiang Province[J]. Journal of Zhejiang A&F University, 2010, 27(3): 360-366. doi: 10.11833/j.issn.2095-0756.2010.03.007
Citation: YAN En-rong, ZHONG Qiang, ZHOU Wu, GUO Ming, WANG Liang-yan, YUAN Shi-jie. Mechanical damage in relation to tree characteristics after a catastrophic freeze in Tiantong Region,Zhejiang Province[J]. Journal of Zhejiang A&F University, 2010, 27(3): 360-366. doi: 10.11833/j.issn.2095-0756.2010.03.007

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