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基于功能性状的亚热带常绿植物抗雨雪冰冻能力评价

徐艺露1,2,杨晓东1,2,许月1,2,谢一鸣1,2,王良衍3,阎恩荣1,2*   

  1. (1华东师范大学环境科学系, 上海 200062; 2浙江天童森林生态系统国家野外科学观测研究站, 浙江宁波 315114; 3浙江鄞州区天童林场, 浙江宁波 315114)
  • 出版日期:2012-12-18 发布日期:2012-12-18

Frost-resistance of subtropical evergreen woody plants: An evaluation based on plant functional traits.

XU Yi-lu1,2, YANG Xiao-dong1,2, XU Yue1,2, XIE Yi-ming1,2, WANG Liang-yan3, YAN En-rong1,2    

  1. (1Department of Environment Science, East China Normal University, Shanghai 200062, China; 2Tiantong National Station of Forest Ecosystem, Chinese National Ecosystem Observation and Research Network, Ningbo 315114, Zhejiang, China; 3Tiantong National Forest Park, Ningbo 315114, Zhejiang, China)
  • Online:2012-12-18 Published:2012-12-18

摘要:

评价常绿植物抗雨雪冰冻能力对于亚热带营林中的树种选择具有重要的指导意义.为筛选优良抗雨雪冰冻常绿树种和研发评估指标体系,调查了2008年初特大雨雪冰冻灾后宁波地区常见的64种常绿阔叶和针叶植物的比叶面积、干材密度、叶面积、叶干物质分数、叶相对电导率、树皮厚度和枝密度7个功能性状,并运用层次分析法确定了各物种功能性状的权重值,建立了宁波地区抗雨雪冰冻和抗机械胁迫能力指标体系.据此筛选出赤皮青冈、云山青冈、浙江新木姜子和米饭树等23个优良的抗寒和抗机械损伤树种.最后分别以7个功能性状作为排序维度,对64种植物的抗灾能力进行了分级排序,建立了宁波地区抗雨雪冰冻灾害优良树种名录.
 

Abstract: Evaluating the frost-resistance of evergreen woody plants is of significance in guiding the species selection in forest management in subtropical region. In this paper, an investigation was made on the functional traits (including specific leaf area, stem wood density, leaf area, leaf dry matter  content, leaf relative electrical conductance, and twig wood density) of 64 common evergreen broad-leaved and coniferous woody plant species in the Ningbo region of Zhejiang Province, East China, after a severe snowstorm in early 2008, aimed to select the evergreen woody plants with high ability of freezetolerance, and to establish a related evaluation system. By using a hierarchy analysis approach, the weight values of the functional traits of each species were determined, and an index system for evaluating the plants tolerance ability against freeze and mechanical damage was established. Based on this system, 23 evergreen plant species with high tolerance ability against freeze and mechanical damage, such as Cyclobalanopsis gilva, Cyclobalanopsis nubium, Neolitsea aurata, and Vacciniuim mandarinorum, were selected. In the meantime, on the basis of the ordering with each of the functional traits, the ordering of the tolerance ability of the 64 plant species against freeze and mechanical damage was made, and a list for the frost-resistance ability of the subtropical evergreen woody plant species in Ningbo region was constituted.