浙江天童常绿木本植物的叶片相对电导率及抗寒性

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

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

详细信息

中图分类号: Q948
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出版历程
- 收稿日期: 2010-04-01
- 修回日期: 2010-07-01
- 刊出日期: 2011-07-05

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

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

摘要

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.
- 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.
- relative conductivity /
- cold resistance /
- life form /
- evergreen broad-leaved forests

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参考文献(1)

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