| 常绿阔叶林藤本植物叶片N、P、K生态化学计量学特征 |
| |
| 引用本文： | 王家妍,蓝嘉川,龙涛,谢益君,陆晓明,雷丽群,朱宏光,温远光.常绿阔叶林藤本植物叶片N、P、K生态化学计量学特征[J].广西农业科学,2013(5):815-818. |
| |
| 作者姓名： | 王家妍 蓝嘉川 龙涛 谢益君 陆晓明 雷丽群 朱宏光 温远光 |
| |
| 作者单位： | 广西大学林学院,南宁530004 |
| |
| 基金项目： | 国家自然科学基金项目（30860059） |
| |
| 摘 要： | 【目的】研究广西大明山国家级自然保护区常绿阔叶林中30种藤本植物叶片N、P、K生态化学计量学特征，为丰富群落生态化学计量学提供基础数据。【方法】在大明山天坪站保存完好的常绿阔叶林中设置20m×20m标准样地80块，共3．2ha，在每个标准样地左下角设置5rex5m的小样方，对藤本植物多样性进行调查，根据重要值，采集30种藤本植物叶片，进行叶片N、P、K含量测定。【结果】叶片N、P、K变化范围分别为3．52-54．71、0．21-3．36、0．48-4．23g／kg。各个化学计量因子之间存在一定的线性关系，草质藤本叶片N：K含量均大于木质藤本，P含量差异不显著。【结论】大明山常绿阔叶林中多数藤本植物是受N或P或N：P的影响，约30％的种类受到N元素限制，而受NP元素限制的植物相对少；草质藤本叶片比木质藤本有更强的N、K元素存储能力。
|
| 关 键 词： | 藤本植物 N P K 生态化学计量学 大明山 |
Ecological stoichiometry characteristics of nitrogen, phosphorus and potassium in liana leaf of evergreen broad-leaf forest |
| |
| WANG Jia-yan,LAN Jia-chuan,LONG Tao,XIE Yi-jun,LU Xiao-ming,LEI Li-qun,ZHU Hong-guang,WEN Yuan-guang.Ecological stoichiometry characteristics of nitrogen, phosphorus and potassium in liana leaf of evergreen broad-leaf forest[J].Guangxi Agricultural Sciences,2013(5):815-818. |
| |
| Authors: | WANG Jia-yan LAN Jia-chuan LONG Tao XIE Yi-jun LU Xiao-ming LEI Li-qun ZHU Hong-guang WEN Yuan-guang |
| |
| Institution: | (Forestry College of Guangxi University,Nanning 530004, China) |
| |
| Abstract: | Objective]N, P, K ecological stoichiometry characteristics of 30 kinds of liana leaves in evergreen broad-leaf forest of Daming Mountain national nature reserve of Guangxi were studied to enrich basic data for community ecological stoi- chiometry. MethodJEighty blocks of 20 m × 20 m standard sample with the total area of 3.2 ha in Tianping station well-pre- served evergreen broad-leaved forest were chosen, and then a 5 m × 5 m plot from every standard sample left bottom was set to observe the diversity of liana. Leaves of 30 lianas were collected for determining the content of N, P, K in the lab based on the important value. Result] The results showed that contents of N, P and K in leaves were 3.52-54.71 g/kg, 0.21-3.36 g/kg and 0.48- 4.23 g/kg, respectively. The stoichiometric factors had certain linear relationship. N：K content of grass mass vine leaf was higher than that of woody vines, and P content in leaf was not significant differenth among different liana. Conclusion]Most lianas were influenced by N, P or N：P with about 30% of the species by N element, however, few plants were affected by P element. Grass mass vine leaves gathered more N, K element than woody vines. |
| |
| Keywords: | liana N P K ecological stoichiometry Daming Mountain |
| 本文献已被 维普 等数据库收录！ |
|
