| 南亚热带人工林16种木本植物重要叶特征参数的相互关系 |
| |
| 引用本文： | 张继光,温达志,张玲玲,傅声雷.南亚热带人工林16种木本植物重要叶特征参数的相互关系[J].热带亚热带植物学报,2009,17(4):395-400. |
| |
| 作者姓名： | 张继光 温达志 张玲玲 傅声雷 |
| |
| 作者单位： | 1. 中国科学院华南植物园,广州,510650;中国科学院研究生院,北京,100049
2. 中国科学院华南植物园,广州,510650 |
| |
| 基金项目： | 国家自然科学基金重点项目 |
| |
| 摘 要： | 以南亚热带退化丘陵生态恢复进程中16种3 a生木本植物为对象,研究叶片重要特征参数间的相互关系.结果表明,植物叶片的N、P含量平均值低于全国平均值,N:P平均值则高于全国的平均水平;成熟叶片的N和P含量之间有极显著正相关关系(P<0.00001),N:P与N有弱的正相关关系(r=0.322,P<0.01),与P显著负相关,推断植物叶N:P主要由P决定(r=0/639,P<0.00001).含N量高的植物具有高的最大净光合速率(Pmax)、光合N利用效率(PNOE)和低的比叶重(LMA),反之,含N量低植物具有低的Pmax、PNUE和高的LMA;Pmax与PNUE极显著正相关,LMA与PNUE极显著负相关.
|
| 关 键 词： | 木本植物 氮 磷 比叶重 光合特性 |
| 收稿时间： | 2008/7/17 0:00:00 |
| 修稿时间： | 2009/2/11 0:00:00 |
Relationships of Key Leaf Traits of 16 Woody Plant Species in Low Subtropical China |
| |
| ZHANG Ji-guang,WEN Da-zhi,ZHANG Ling-ling and Fu Sheng-lei.Relationships of Key Leaf Traits of 16 Woody Plant Species in Low Subtropical China[J].Journal of Tropical and Subtropical Botany,2009,17(4):395-400. |
| |
| Authors: | ZHANG Ji-guang WEN Da-zhi ZHANG Ling-ling and Fu Sheng-lei |
| |
| Institution: | 1.South China Botanical Garden;Chinese Academy of Sciences;Guangzhou 510650;China;2.Graduate University of Chinese Academy of Sciences;Beijing 100049;China |
| |
| Abstract: | The nitrogen content(N),phosphorous content(P) in leaves,leaf mass per area(LMA),max.net photosynthetic rate(Pmax) and photosynthetic nitrogen use efficiency(PNUE) of 16 woody species were examined,which were used for the restoration of degraded hilly land.The results showed that contents of N and P in leaves were 18.8 mg g-1,1.07 mg g-1,that were 6.9% and 26% lower than the national average levels(20.2 mg g-1,1.46 mg g-1),respectively.The average N: P ratio in leaves was 18.4,12.9% higher than the national... |
| |
| Keywords: | Woody plant N: P Leaf mass per area Photosynthetic characteristics |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《热带亚热带植物学报》浏览原始摘要信息 |
| 点击此处可从《热带亚热带植物学报》下载免费的PDF全文 |
|
