湿地松等3 种树种的光合特性及其与环境因子的关系

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岳春雷,高智慧,陈顺伟

文章导航> 浙江农林大学学报> 2002> 19(3): 247-250

岳春雷, 高智慧, 陈顺伟. 湿地松等3 种树种的光合特性及其与环境因子的关系[J]. 浙江农林大学学报, 2002, 19(3): 247-250.

引用本文:

岳春雷, 高智慧, 陈顺伟. 湿地松等3 种树种的光合特性及其与环境因子的关系[J]. 浙江农林大学学报, 2002, 19(3): 247-250.

YUE Chun-lei, GAO Zhi-hui, CHEN Shun-wei. Photosynthetic characteristics of Pinus elliottii , Elaeocarpus sylvestris and Myrica rubra and their relationship with ecological factors[J]. Journal of Zhejiang A&F University, 2002, 19(3): 247-250.

Citation:

YUE Chun-lei, GAO Zhi-hui, CHEN Shun-wei. Photosynthetic characteristics ofPinus elliottii,Elaeocarpus sylvestrisandMyrica rubraand their relationship with ecological factors[J].Journal of Zhejiang A&F University, 2002, 19(3): 247-250.

湿地松等3 种树种的光合特性及其与环境因子的关系

1.
浙江省林业科学研究院, 浙江杭州 310023

基金项目:

九五国家攻关项目(96-007-03-003 ); 十五国家攻关项目(2002BA516A16-14)

详细信息

作者简介:岳春雷(1969-), 男, 河南永城人, 助理研究员, 博士, 从事环境工程研究。

通信作者:岳春雷(1969-), 男, 河南永城人, 助理研究员, 博士, 从事环境工程研究。

中图分类号:S718.43

Photosynthetic characteristics ofPinus elliottii,Elaeocarpus sylvestrisandMyrica rubraand their relationship with ecological factors

1.
Zhejiang Forestry Academy , Hangzhou 310023, Zhejiang , China

摘要:采用红外线二氧化碳分析仪闭路气流法于夏季晴天测量湿地松、杜英和杨梅等的光合特性和光合日进程, 并同步测定光合有效辐射强度、气温和空气相对湿度对光合日进程的影响。研究结果如下:湿地松、杜英和杨梅的光补偿点分别为86 , 34 和45 molm-2 s-1 ;饱和点分别为1 200 , 760 和1 050 mol m-2 s-1 ;表观量子产额分别为0.020 3 , 0.053 1 和0.038 8 ;最大净光合速率分别为7.15 , 12.50 和7.85 molm-2 s-1 。根据对光补偿点、饱和点、表观量子产额和最大净光合速率的分析, 湿地松、杜英和杨梅均为阳性植物, 湿地松对光强的生态适应范围最广, 对强光的适应性最强, 杜英对光强的生态适应范围偏窄, 对弱光的利用效率最高;它们的光合日进程曲线为双峰曲线类型, 存在光合午休现象, 光合午休可能是高温和低湿造成的。通径分析表明, 对湿地松和杨梅光合日变化直接影响最大的生态因子是气温, 其次是空气相对湿度和光合有效辐射强度;对杜英的光合日变化影响较大的生态因子是空气相对湿度和气温。图2 表3 参10
- 湿地松/
- 杜英/
- 杨梅/
- 光合作用/
- 环境因子
Abstract:The photosynthetic rate and diurnal changes of Pinus elliottii , Elaeocarpus sylvestris and Myrica rubra were measured by closed-circuit airflow method with carbon dioxide infrared analyzer in sunny days of July , 2000 . Photosynthetic active radiance , air temperature and relative humidity were determined .The results was as follows : Light compensation points of Pinus elliottii , Elaeocarpus sylvestris and Myrica rubra were 86 , 34 and 45 molm-2 s-1 , respectivey .Their light saturation points were 1 200 , 760 and 1 050 molm-2 s-1 , respectively . Their apparent quantum yields were 0.020 3 , 0.053 1 and 0.038 8 , respectively .Their maximum net photosynthetic rates were 7.15 , 12.50 and 7.85 molm-2 s-1 , respectively .By analysis on light compensation point and saturation point , Pinus elliottii , Elaeocarpus sylvestris , and Myrica rubra were thought of as heliophilous plant , of which , Pinus elliottii was the hightest in adaptability to strong light , and Elaeocarpus sylvestris was the highest in use efficiency for weak light .Their curves of diurnal changes in photosynthetic rate were double-peaked , and the photosynthetic depression at midday was caused by high temperature and low relative humidity .Path analysis showed that the most significant ecological factor directly affecting photosynthetic diurnal changes of Pinus elliottii and Myrica rubra was air temperature , followed by air relative humidity and photosynthetic active radiance .The more significant ecological factors affecting photosynthetic diurnal changes of Elaeocarpus syvestris were air relative humidity and air temperature .
- Pinue elliottii/
- Elaeocarpus sylvestris/
- Myrica rubra/
- photosynthesis/
- environmental factors

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湿地松等3 种树种的光合特性及其与环境因子的关系

1. 浙江省林业科学研究院, 浙江杭州 310023

基金项目:

九五国家攻关项目(96-007-03-003 ); 十五国家攻关项目(2002BA516A16-14)

作者简介:
岳春雷(1969-), 男, 河南永城人, 助理研究员, 博士, 从事环境工程研究。

通信作者:岳春雷(1969-), 男, 河南永城人, 助理研究员, 博士, 从事环境工程研究。

刊出日期: 2002-09-20

中图分类号:S718.43

关键词:

摘要:采用红外线二氧化碳分析仪闭路气流法于夏季晴天测量湿地松、杜英和杨梅等的光合特性和光合日进程, 并同步测定光合有效辐射强度、气温和空气相对湿度对光合日进程的影响。研究结果如下:湿地松、杜英和杨梅的光补偿点分别为86 , 34 和45 molm-2 s-1 ;饱和点分别为1 200 , 760 和1 050 mol m-2 s-1 ;表观量子产额分别为0.020 3 , 0.053 1 和0.038 8 ;最大净光合速率分别为7.15 , 12.50 和7.85 molm-2 s-1 。根据对光补偿点、饱和点、表观量子产额和最大净光合速率的分析, 湿地松、杜英和杨梅均为阳性植物, 湿地松对光强的生态适应范围最广, 对强光的适应性最强, 杜英对光强的生态适应范围偏窄, 对弱光的利用效率最高;它们的光合日进程曲线为双峰曲线类型, 存在光合午休现象, 光合午休可能是高温和低湿造成的。通径分析表明, 对湿地松和杨梅光合日变化直接影响最大的生态因子是气温, 其次是空气相对湿度和光合有效辐射强度;对杜英的光合日变化影响较大的生态因子是空气相对湿度和气温。图2 表3 参10

English Abstract

Photosynthetic characteristics ofPinus elliottii,Elaeocarpus sylvestrisandMyrica rubraand their relationship with ecological factors

1. Zhejiang Forestry Academy , Hangzhou 310023, Zhejiang , China

Publish Date:2002-09-20

Keywords:

Abstract:The photosynthetic rate and diurnal changes of Pinus elliottii , Elaeocarpus sylvestris and Myrica rubra were measured by closed-circuit airflow method with carbon dioxide infrared analyzer in sunny days of July , 2000 . Photosynthetic active radiance , air temperature and relative humidity were determined .The results was as follows : Light compensation points of Pinus elliottii , Elaeocarpus sylvestris and Myrica rubra were 86 , 34 and 45 molm-2 s-1 , respectivey .Their light saturation points were 1 200 , 760 and 1 050 molm-2 s-1 , respectively . Their apparent quantum yields were 0.020 3 , 0.053 1 and 0.038 8 , respectively .Their maximum net photosynthetic rates were 7.15 , 12.50 and 7.85 molm-2 s-1 , respectively .By analysis on light compensation point and saturation point , Pinus elliottii , Elaeocarpus sylvestris , and Myrica rubra were thought of as heliophilous plant , of which , Pinus elliottii was the hightest in adaptability to strong light , and Elaeocarpus sylvestris was the highest in use efficiency for weak light .Their curves of diurnal changes in photosynthetic rate were double-peaked , and the photosynthetic depression at midday was caused by high temperature and low relative humidity .Path analysis showed that the most significant ecological factor directly affecting photosynthetic diurnal changes of Pinus elliottii and Myrica rubra was air temperature , followed by air relative humidity and photosynthetic active radiance .The more significant ecological factors affecting photosynthetic diurnal changes of Elaeocarpus syvestris were air relative humidity and air temperature .

岳春雷, 高智慧, 陈顺伟. 湿地松等3 种树种的光合特性及其与环境因子的关系[J]. 浙江农林大学学报, 2002, 19(3): 247-250.

引用本文:

岳春雷, 高智慧, 陈顺伟. 湿地松等3 种树种的光合特性及其与环境因子的关系[J]. 浙江农林大学学报, 2002, 19(3): 247-250.

Citation: