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| 巴郎山异型柳叶片功能性状及性状间关系对海拔的响应 | |
| 引用本文： | 冯秋红,程瑞梅,史作民,刘世荣,王卫霞,刘兴良,何飞.巴郎山异型柳叶片功能性状及性状间关系对海拔的响应[J].生态学报,2013,33(9):2712-2718. |
| 作者姓名： | 冯秋红 程瑞梅 史作民 刘世荣 王卫霞 刘兴良 何飞 |
| 作者单位： | 1. 中国林业科学研究院森林生态环境与保护研究所国家林业局森林生态环境重点实验室,北京 100091;四川省林业科学研究院,成都610081 2. 中国林业科学研究院森林生态环境与保护研究所国家林业局森林生态环境重点实验室,北京,100091 3. 四川省林业科学研究院,成都,610081 |
| 基金项目： | 国家自然科学基金面上项目，中国林科院中级公益性科研院所基本科研业务费专项资金项目，林业公益性行业科研专项 |
| 摘 要： | 在卧龙自然保护区,按海拔梯度选择了4个异型柳分布地点(2350 m、2700 m、3150 m和3530 m),对各研究地点异型柳进行了叶片光合、CO2扩散导度(气孔导度(gs)和叶肉细胞导度(gm))、δ13C、氮素以及比叶面积(SLA)等参数的测量,以期揭示该植物叶片功能性状及功能性状间关系的海拔响应情况.结果表明:随着海拔的升高,大气温度和压强的降低,异型柳的叶片单位面积氮含量(Narea)、最大羧化速率(Vcmax)和最大净光合速率(Amax)均随之增加,这可能是该落叶灌木对于生长季节缩短的一种响应；同时,植物的光合氮利用效率(PNUE)和SLA却均随海拔降低,原因可能在于随着海拔的升高,植物将越来越多的氮素用于细胞壁等非光合组织的构建,这是高海拔植物对于外界恶劣环境的一种适应；最后,扩散导度和羧化能力是植物叶片δ13C的主要影响因子,而羧化能力较扩散导度对于异型柳叶片δ13C的作用更大些,进而导致该值呈现随海拔升高的趋势.氮素在光合与非光合系统间的分配是巴郎山异型柳适应不同海拔生境的关键. |
| 关 键 词： | 叶片功能性状 海拔响应 性状间关系 异型柳 巴郎山 |
| 收稿时间： | 2/2/2012 12:00:00 AM |
| 修稿时间： | 9/6/2012 12:00:00 AM |
Response of leaf functional traits and the relationships among them to altitude of Salix dissa in Balang Mountain |
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| FENG Qiuhong,CHENG Ruimei,SHI Zuomin,LIU Shirong,WANG Weixi,LIU Xingliang and HE Fei.Response of leaf functional traits and the relationships among them to altitude of Salix dissa in Balang Mountain[J].Acta Ecologica Sinica,2013,33(9):2712-2718. | |
| Authors: | FENG Qiuhong CHENG Ruimei SHI Zuomin LIU Shirong WANG Weixi LIU Xingliang and HE Fei |
| Institution: | Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China;Sichuan Academy of Forestry, Chengdu 610081, China;Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China;Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China;Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China;Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China;Sichuan Academy of Forestry, Chengdu 610081, China;Sichuan Academy of Forestry, Chengdu 610081, China |
| Abstract: | |
| Keywords: | leaf functional traits altitudinal response relationships among traits Salix dissa Balong Mountain |
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