Ecophysiological trait comparison of <i>Shaniodendron subaequale</i> and accompanying species

ZHU Tang-jun; YUE Chun-lei; JIN Shui-hu

Volume 25 Issue 2

Jun. 2018

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ZHU Tang-jun, YUE Chun-lei, JIN Shui-hu. Ecophysiological trait comparison of Shaniodendron subaequale and accompanying species[J]. Journal of Zhejiang A&F University, 2008, 25(2): 176-180.

Citation:

ZHU Tang-jun, YUE Chun-lei, JIN Shui-hu. Ecophysiological trait comparison of Shaniodendron subaequale and accompanying species[J]. Journal of Zhejiang A&F University, 2008, 25(2): 176-180.

Ecophysiological trait comparison of Shaniodendron subaequale and accompanying species

1.
Zhejiang Forestry Academy, Hangzhou 310023, Zhejiang, China;
2.
School of Forestry and Biotechnology, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China

Received Date: 2007-06-11
Rev Recd Date: 2007-09-17
Publish Date: 2008-04-10

Abstract

Hamamelidaceae Shaniodendron subaequale,an endangered plant species endemic to China,has a narrow distribution range. To understand why it is endangered,diurnal changes of photosynthetic rate,light compensation point,light saturation point,and chlorophyll content in different months for S. subaequale and its accompanying species were determined using the LCA-4 portable photosynthesis system from May to November. Results indicated that diurnal change curves for photosynthetic rate were double-peaked with a photosynthetic depression at midday. S. subaequale was higher in photosynthetic ability than Platycarya strobilacea,which was lower than the mean level. Also,due to changing leaf development and chlorophyll content,S. subaequale had a higher light compensation point and lower light saturation point. This indicated that the adaptable range of light for S. subaequale was narrower than its neighboring species. Thus,its ecophysiological traits can partly account for its endangerment.
- botany,
- endangered species,
- Shaniodendron subaequale,
- photosynthesis,
- accompanying species

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Ecophysiological trait comparison of Shaniodendron subaequale and accompanying species

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

2. School of Forestry and Biotechnology, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China

Received Date: 2007-06-11

Rev Recd Date: 2007-09-17

Publish Date: 2008-04-10

Key words:

Abstract: Hamamelidaceae Shaniodendron subaequale,an endangered plant species endemic to China,has a narrow distribution range. To understand why it is endangered,diurnal changes of photosynthetic rate,light compensation point,light saturation point,and chlorophyll content in different months for S. subaequale and its accompanying species were determined using the LCA-4 portable photosynthesis system from May to November. Results indicated that diurnal change curves for photosynthetic rate were double-peaked with a photosynthetic depression at midday. S. subaequale was higher in photosynthetic ability than Platycarya strobilacea,which was lower than the mean level. Also,due to changing leaf development and chlorophyll content,S. subaequale had a higher light compensation point and lower light saturation point. This indicated that the adaptable range of light for S. subaequale was narrower than its neighboring species. Thus,its ecophysiological traits can partly account for its endangerment.

Ecophysiological trait comparison of Shaniodendron subaequale and accompanying species

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通讯作者: 陈斌, bchen63@163.com

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Ecophysiological trait comparison of Shaniodendron subaequale and accompanying species

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

2. School of Forestry and Biotechnology, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China

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Ecophysiological trait comparison of Shaniodendron subaequale and accompanying species

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通讯作者: 陈斌, bchen63@163.com

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Ecophysiological trait comparison of Shaniodendron subaequale and accompanying species

1. Zhejiang Forestry Academy, Hangzhou 310023, Zhejiang, China; 2. School of Forestry and Biotechnology, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China

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

2. School of Forestry and Biotechnology, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China