| 从水力结构比较3种共存木本植物的抗旱策略 |
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| 引用本文： | 靳欣,徐洁,白坤栋,冯锦霞,张劲松,万贤崇.从水力结构比较3种共存木本植物的抗旱策略[J].北京林业大学学报,2011,33(6):135-141. |
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| 作者姓名： | 靳欣 徐洁 白坤栋 冯锦霞 张劲松 万贤崇 |
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| 作者单位： | 1 中国林业科学研究院林业新技术研究所2 中国林业科学研究院林业研究所 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项(CAFINT2010K09); “十二五”国家科技支撑计划项目(2011BAD38B06) |
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| 摘 要： | 通过盆栽控水方法测定了华北石质山区刺槐、栓皮栎和侧柏3个主要造林树种在干旱胁迫以及随后的复水条件下气体交换和水分关系的变化,分析了这3个树种抗旱特性的差异。结果表明：1）在供水充足时,刺槐光合作用强、气孔导度大、耗水速度快。2）刺槐对土壤水分变化最为敏感,当土壤水分含量降低时,其光合速率和气孔导度迅速下降。3）复水后,...
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| 关 键 词： | 土壤水分 光合作用 气孔导度 树干液流水势 导水损失率 |
| 收稿时间： | 1900-01-01 |
Comparison of drought strategies of three co-existing woody plants by their hydraulic structures |
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| JIN Xin, XU Jie, BAI Kun-dong, FENG Jin-xia, ZHANG Jin-song, WAN Xian-chong.Comparison of drought strategies of three co-existing woody plants by their hydraulic structures[J].Journal of Beijing Forestry University,2011,33(6):135-141. |
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| Authors: | JIN Xin XU Jie BAI Kun-dong FENG Jin-xia ZHANG Jin-song WAN Xian-chong |
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| Institution: | 1 Institute of New Forest Technology, Chinese Academy of Forestry, Beijing, 100091, P. R. China; 2 Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, P. R. China. |
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| Abstract: | This paper investigates the physiological characteristics for drought resistance among three main afforestation woody species(ie Robinia pseudoacacia L.,Quercus variabilis Blume,Platycladus orientalis(L.) Franco) in lithoid mountainous areas in north China.Variations in their gas exchanges and water relations were comparatively measured during withholding water and subsequent rewatering of potted seedlings.The results showed that:1) under well-watered conditions,black locust(R.pseudoacacia) had the stronges... |
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| Keywords: | soil water content photosynthesis stomatal conductance stem water potential percentage loss of hydraulic conductivity (PLC) |
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