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桂林尧山常见植物叶片性状研究 预览 被引量:11

Leaf Traits of Common Plants in Yaoshan Mountain of Guilin,China
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摘要 选择桂林尧山14种常见植物为研究对象,通过测定其叶干质量(DW)、叶面积(AR)、叶干物质含量(LDMC)、叶厚度(TH)和比叶面积(SLA)等叶片性状因子,探讨不同植物适应土山生境所表现出的叶性状特征。结果表明:14种常见植物的5个叶性状因子之间存在显著差异。Pearson相关性分析表明,DW与LDMC、AR、TH呈显著的正相关关系,DW与SLA呈显著的负相关关系;LDMC与AR、TH、SLA呈显著的负相关关系;AR与TH、SLA呈显著的正相关关系,TH与SLA呈显著的负相关关系。5个叶性状因子中,反映叶片性状权重的大小依次为:AR〉LDMC〉TH〉DW〉SLA。与桂林岩溶石山相比,作为土山的桂林尧山生境植物具有相对较小的DW、LDMC、AR、TH和相对较大的SLA,研究结果较好地反映了植物适应土山和石山不同生境的策略。 The leaf traits including dry weight(DW),dry matter content(LDMC),area(AR),thickness(TH) and specific leaf area(SLA) of the 14 common plants in Yaoshan Mountain of Guilin,China,were measured to study the adaption to the soil hills habitat.The results showed that the DW,LDMC,AR,TH and SLA were significantly different among 14 plants.Pearson correlation analysis shows that,there were significant positive correlations between the DW and the LDMC,AR,TH,but significant negative correlation between the DW and the SLA.There were significant negative correlations between the LDMC and the AR,TH,SLA.There were significant positive correlations between the AR and the TH,SLA.There was significant negative correlation between the TH and the SLA.The weight reflecting the leaf traits shows as follows:ARLDMCTHDWSLA.The plants in site of soil hills of Yaoshan Mountain had smaller DW,LDMC,AR,TH and bigger SLA,which reflect the strategy of plants adapting to different sites of soil hills site and karst hills site.
作者 马姜明 张秀珍 梁士楚 陈婷 黄秋菊 MA Jiang-ming,ZHANG Xiu-zhen,LIANG Shi-chu,CHEN Ting,HUANG Qiu-ju(1.College of Life Science,Guangxi Normal University,Guilin Guangxi 541004,China;2.Key Laboratory of Ecology ofRare and Endangered Species and Environmental Protection,Ministry of Education,China,Guilin Guangxi 541004,China)
出处 《广西师范大学学报:自然科学版》 CAS 北大核心 2012年第1期 77-82,共6页 Journal of Guangxi Normal University(Natural Science Edition)
基金 国家自然科学基金资助项目(31160156) 广西教育厅科研项目(200911MS50 200807LX020) 珍稀濒危动植物生态与环境保护省部共建教育部重点实验室主任基金(桂科能1101Z003) 广西师范大学博士启动基金
关键词 叶性状 土山生境 适应性 桂林尧山 leaf traits soil hills site adaptability Yaoshan Mountain of Guilin China
作者简介 通信联系人:梁士楚(1965-),男,广西百色人,广西师范大学教授,博士。E-mail:gxlsc@sina.com
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