| 人工桤柏混交林光合生理生态机理研究 |
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| 引用本文： | 彭培好 王成善 等. 人工桤柏混交林光合生理生态机理研究[J]. 四川林业科技, 2001, 22(4): 19-23 |
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| 作者姓名： | 彭培好 王成善 等 |
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| 作者单位： | [1]四川省林业科学研究院,四川成都610081 [2]成都理工大学,四川成都610059 |
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| 基金项目： | 国家"八·五"科技攻关项目(编号:85-19-01-11-02) |
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| 摘 要： | 本文对四川盆地紫色土区人工桤柏木桤柏木混交的光合生理生态机理进行了探讨。研究表明,桤、柏木混交的光合生理生态机制在于：桤、柏木的光合作用在日变化和季节变化上存在时间匹配效应,在林木结构上存在光合作用的空间匹配效应,因而使桤柏木能充分有效地利用林地上各层次水平的光能资源,大大提高混交林群体的光能利用效率,使之成为川中丘降紫色土区的高产林分类型。研究还表明,桤柏混交林林冠光合作用的日变化和季节变化进程基本上与桤木的变化趋势一致,这主要由桤柏木的生物生态学特性决定;桤柏林林冠光合作用主要受气温、光照和CO2浓度的影响,温度因子的影响相对较小。
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| 关 键 词： | 人工桤柏林 光合作用 生理生态 |
| 文章编号： | 1003-5508(2001)04-0019-23 |
| 修稿时间： | 2000-11-22 |
Photo-physio Ecological Mechanism of Mixed Alder and Cypress Forest |
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| PENG Pei hao WANG Jin xi WANG Cheng shan. Photo-physio Ecological Mechanism of Mixed Alder and Cypress Forest[J]. Journal of Sichuan Forestry Science and Technology, 2001, 22(4): 19-23 |
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| Authors: | PENG Pei hao WANG Jin xi WANG Cheng shan |
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| Affiliation: | PENG Pei hao 1 WANG Jin xi 1 WANG Cheng shan 2 |
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| Abstract: | Photo physiological mechanism of the alder cypress plantation was investigated in this paper.The results showed that alder and cypress possessed time matched,season matched and space matched photosynthetic effect,which made alder and cypress utilize efficiently light energy resource radiating on forest land.Thus,the light energy utilization efficiency of alder cypress plantation is ominously heighten.In addition,daily and seasonal change of canopy photosynthesis of the alder cypress plantation basically accorded with that of alder,because of different biological and ecological traits of alder and cypress.Climate factors that effected on photosynthesis of the alder and cypress mixed foret are mainly air temperature,CO 2 concentration and light conditions. |
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| Keywords: | Alder cypress plantation Photosynthesis Physio ecology |
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