| 基于功能性状评价5种植物对热带珊瑚岛环境的适应性 |
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| 引用本文： | 罗琦,刘慧,吴桂林,贺鹏程,华雷,朱丽薇,张辉,刘楠,简曙光,叶清.基于功能性状评价5种植物对热带珊瑚岛环境的适应性[J].生态学报,2018,38(4):1256-1263. |
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| 作者姓名： | 罗琦 刘慧 吴桂林 贺鹏程 华雷 朱丽薇 张辉 刘楠 简曙光 叶清 |
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| 作者单位： | 中国科学院华南植物园退化生态系统植被恢复与管理重点实验室;中国科学院华南植物园广东省应用植物学重点实验室;中国科学院大学; |
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| 基金项目： | 中国科学院A类战略性先导科技专项（XDA13020500）；国家重点研发计划项目（2016YFC1403002） |
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| 摘 要： | 植被新建是保护和改善热带珊瑚岛生态系统的关键环节,热带珊瑚岛极端干旱生境是影响植物存活和定居的主要限制因子之一,因此选取适生植物对热带珊瑚岛植被新建至关重要。通过测定在海南省文昌市苗圃和热带珊瑚岛上的草海桐(Scaevola taccada)、厚藤(Ipomoea pescaprae)、木麻黄(Casuarina equisetifolia)、花生(Arachis hypogaea)、椰子(Cocos nucifera)5种植物的光合/水力相关功能性状,探讨植物对热带珊瑚岛生境的适应性。研究发现:与对照(文昌苗圃)相比,热带珊瑚岛上的草海桐、厚藤、木麻黄最大光合速率(A_(max))均显著升高;除椰子外,其余4种植物的比叶面积(SLA)降低,长期水分利用效率升高(其中木麻黄和花生升高显著);5种植物的叶片碳含量(LC)均有不同程度降低。此外,厚藤、木麻黄、椰子的叶片导水率(K_(leaf))显著升高;厚藤和花生的叶片膨压丧失点(Ψ_(tlp))显著降低;厚藤和木麻黄的气孔导度(g_s)显著升高。研究结果表明草海桐、椰子、花生主要通过非气孔调节方式(提高K_(leaf),降低Ψ_(tlp)、SLA等)适应热带珊瑚岛干旱环境;而厚藤和木麻黄同时通过气孔调节(降低g_s)及非气孔调节(提高K_(leaf),降低Ψ_(tlp)、SLA等)两种方式促进植物碳同化和水分利用。综上所述,草海桐、厚藤、木麻黄具有更高的光合能力和水分利用效率,能有效协调碳同化和水分利用,表现出良好的适应能力,适合用于热带珊瑚岛的植被新建。
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| 关 键 词： | 热带珊瑚岛 生态适应性 植被新建 光合作用 功能性状 |
| 收稿时间： | 2016/12/15 0:00:00 |
| 修稿时间： | 2017/10/8 0:00:00 |
Using functional traits to evaluate the adaptability of five plant species on tropical coral islands |
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| LUO Qi,LIU Hui,WU Guilin,HE Pengcheng,HUA Lei,ZHU Liwei,ZHANG Hui,LIU Nan,JIAN Shuguang and YE Qing.Using functional traits to evaluate the adaptability of five plant species on tropical coral islands[J].Acta Ecologica Sinica,2018,38(4):1256-1263. |
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| Authors: | LUO Qi LIU Hui WU Guilin HE Pengcheng HUA Lei ZHU Liwei ZHANG Hui LIU Nan JIAN Shuguang and YE Qing |
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| Institution: | Key Laboratoryof Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, China,Key Laboratoryof Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China,Key Laboratoryof Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, China,Key Laboratoryof Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, China,Key Laboratoryof Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, China,Key Laboratoryof Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China,Key Laboratoryof Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China,Key Laboratoryof Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China,Key Laboratoryof Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China and Key Laboratoryof Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China |
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| Abstract: | |
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| Keywords: | tropical coral island ecological adaptability vegetation restoration photosynthesis functional traits |
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