浙江天童常绿木本植物的叶片相对电导率及抗寒性

华东师范大学学报(自然科学版) ›› 2011, Vol. 2011 ›› Issue (4): 45-52.

浙江天童常绿木本植物的叶片相对电导率及抗寒性

仲强¹，康蒙¹，郭明¹，王希华^1,2，王良衍³，阎恩荣^1,2

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. 浙江天童国家森林公园，浙江宁波 315114

收稿日期:2010-04-01 修回日期:2010-07-01 出版日期:2011-07-05 发布日期:2011-11-12

Leaf frost sensitivity and percentage of electrolyte leakage of the evergreen woody species in Tiantong region, Zhejiang Province

ZHONG Qiang ¹, KANG Meng ¹, GUO Ming ¹, WANG Xi-hua ^1,2, WANG Liang-yan ³, YAN En-rong ^1,2

1. Department of Environment Science, East China Normal University, Shanghai 200062, China; 2. Tiantong National Station of Forest Ecosystem, Chinese National Ecosystem Observation and Research Network, Ningbo Zhejiang 315114, China; 3. Tiantong National Forest Park, Ningbo Zhejiang 315114, China

Received:2010-04-01 Revised:2010-07-01 Online:2011-07-05 Published:2011-11-12

摘要/Abstract

摘要： 以浙江天童常绿阔叶林59种常见木本植物为研究对象，通过比较其叶片在低温胁迫下的相对电导率差异，揭示该地区常绿阔叶林常见常绿植物的抗寒性，旨在为营建具有较强抗雨雪冰冻灾害能力的人工林提供参考.结果显示：(1)各植物叶片对0 ℃低温普遍具有较好的抗性，未产生显著伤害；在-5 ℃低温处理下相对电导率显著增大，均造成了不同程度的伤害；(2)研究区域内樟科与壳斗科植物对-5 ℃低温耐受性最好，其次为山茶科植物；(3)常绿阔叶树种抗寒性强于针叶树种.建议在该地区营建抗雨雪冰冻人工林时，应优先选择具有较强耐寒性的樟科与壳斗科植物.

关键词: 电导率, 抗寒性, 生活型, 常绿阔叶林

Abstract: In this study, leaf percentage of electrolyte leakage was examined by using respectively 26 ℃, 0 ℃ and -5 ℃ temperate treatments, to reflect the leaf frost sensitivity for 59 evergreen woody plants in Tiantong region, Zhejiang province. The objective was to select frost-resistant woody plants for establishing frost-tolerant plantations. The results showed: (1) the most evergreen woody plants acclimatized themselves to 0 ℃, indicating few leaf damage; whereas, -5 ℃ treatment led to a significant increase of leaf percentage of electrolyte leakage for all plants, suggesting a heavy leaf damage; (2) among three dominant families of plants, the frost-resistance was higher in Lauraceae and Fagaceae than in Symplocaceae; and (3) evergreen broadleaf plants was more frost-resistant than conifer species. Therefore, the frost-resistant plants belonging to Lauraceae and Fagaceae families should be preference species in afforestation.

Key words: relative conductivity, cold resistance, life form, evergreen broad-leaved forests

中图分类号:

Q948

仲强，康蒙，郭明，王希华，王良衍，阎恩荣. 浙江天童常绿木本植物的叶片相对电导率及抗寒性[J]. 华东师范大学学报(自然科学版), 2011, 2011(4): 45-52.

ZHONG Qiang, KANG Meng, GUO Ming, WANG Xi-hua, WANG Liang-yan, YAN En-rong. Leaf frost sensitivity and percentage of electrolyte leakage of the evergreen woody species in Tiantong region, Zhejiang Province[J]. Journal of East China Normal University(Natural Sc, 2011, 2011(4): 45-52.

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