山蒟(Piperhancei)的生态生物学特征  

Ecological and biological characteristics of Piper hancei

作　　者：简曙光[1] 李玲[1,2] 张倩媚[1] 卢琼 叶育石[1] 任海[1] 

机构地区：[1]中国科学院华南植物园,广东广州510650 [2]中国科学院研究生院,北京100039 [3]佛山市高明区园林管理处,广东佛山528500

出　　处：《生态环境学报》2009年第2期608-613,共6页Ecology and Environmental Sciences

基　　金：科技部支撑计划项目(2008BAJ10B03);广东省科技计划项目(2006B60101034;2008A060207017);佛山市高明区科技计划项目(2007N03)

摘　　要：山蒟(Piper hancei)是一种有较高园林绿化价值的常绿藤本植物,通过样地调查及相关数据分析,对山蒟的形态解剖学、生理生态学、营养元素含量等生态生物学特征进行研究,结果表明:山蒟喜阴湿环境,耐贫瘠,适合在酸性赤红壤上生长,主要分布于热带亚热带地区光照适中或较弱的溪涧边、林下、树干或岩石上。其平均光合速率为4.07μmol·m-2·s-1,气孔导度为0.23mol·m-2·s-1,蒸腾速率为3.87mmol·m-2·s-1。山蒟对营养元素的利用率较高,植株体内加权平均养分含量为N2.00%、P0.20%、K2.11%、Ca0.94%、Na0.05%、Mg0.15%,其中叶片的N、K和Ca含量最高,枝的P和Mg含量最高。山蒟的生态生物学特征有利于其快速生长、覆盖、吸附攀援和适应环境。研究结果将为山蒟的引种、栽培及开发利用提供重要理论依据。Piper hancei is an evergreen vine species with good ornamental value in landscape greening. The studies on the morphological, physiological and ecological characteristics, and nutrient utilization of P. hancei showed that this species mainly distribute under forest, on the trunk and stone, or along rivulet side with moderate to shady condition in tropical and subtropical areas. It prefers to grow on the fertile, acidic lateritic red soil, under shady and humid condition in the field, and can grow well on impoverished soil. The average photosynthetic rate, stomatal conductance and transpiration rate of P. hancei were 4.07 μmol·m^-2·s^-1, 0.023 mol·m^-2·s^-1 and 3.87 mmol·m^-2·s^-1, respectively. The weighted nutrient concentration of P. hancei were N 2.00%, P 0.20%, K 2.11%, Ca 0.94%, Na 0.05% and Mg 0.15%, respectively. P. hancei has a high level of nutrient utilization efficiency and has the highest N, K and Ca content in leaf, P and Mg content in branch. The ecological and biological characteristics of P hancei favored its fast growing, coveting, climbing and adaptability to different environments. The results are very useful for introduction, cultivation, exploitation and utilization ofP hance in landscape greening.

关 键 词：山蒟 藤本 生态生物学特征 园林绿化 开发利用 

分 类 号：Q945.11[生物学—植物学]