植物生长抽梢期和气候因子对株高生长影响

doi:10.3724 SP.J.1143.2009.08233

Plant Diversity ›› 2009, Vol. 31 ›› Issue (02): 178-182.DOI: 10.3724 SP.J.1143.2009.08233

植物生长抽梢期和气候因子对株高生长影响

宋富强^{1 , 2 , 3} , 张一平¹, 胡建湘¹ , 许再富¹ , 肖来云¹

1 中国科学院西双版纳热带植物园, 云南昆明 650223 ; 2 云南省环境科学研究院, 云南昆明 650034; 3 中国科学院研究生院, 北京 100049

收稿日期:2009-01-02 出版日期:2009-04-25 发布日期:2009-04-25

The Influences of Shooting Duration and Climatic Factors on Plant Height Growth

SONG Fu-Qiang^{1 , 2 , 3} , ZHANG Yi-Ping¹, HU Jian-Xiang¹ , XU Zai-Fu¹ , XIAO Lai-Yun¹

1 Xishuangbanna Tropical Botanical Garden , Chinese Academy of Sciences, Kunming 650223 , China;
2 Yunnan Institute of Environmental Science, Kunming 650034 China ;
3 Graduate University of Chinese Academy of Sciences, Beijing 100049 , China

Received:2009-01-02 Online:2009-04-25 Published:2009-04-25

摘要/Abstract

摘要： 利用西双版纳热带植物园的热带植物物候观测资料和气候资料, 通过对热带植物株高生长偏差、生长抽梢期和气候因子的分析, 探讨了三者的关系。结果表明, 热带植物生长抽梢期变长不一定影响株高生长, 而且与株高生长偏差的关系也小于气候因子与株高生长偏差的关系。同时, 热带植物生长抽梢期对气候因子和株高生长偏差之间关系的贡献很小。因此, 可以认为热带植物的生长期对植被生产力的促进作用较弱。

关键词: 株高偏差, 生长抽梢期, 气候因子

Abstract: The increased plant productivity during the past decades is hypothesized that warmer temperature promoted plant growth through extending the length of growing season . However, there are no experimental results supporting it. In the present study we examined the relationship among plant height growth , shooting duration and climatic variables for 11 tropical
tree species. Our data showed that the longer shooting duration of tropical plants did not always promote plant height growth, and the climatic variables had stronger correlation with plant height growth than with shooting duration. In addition, the pathway analysis has been used to examine the contribution of shooting duration to the effect of climatic factors on plant height growth . The percentage of contribution of shooting duration was always less than 30% .We concluded that the increased growth period has limited influence on plant productivity for tropical trees .

Key words: Deviation from plant height

中图分类号:

Q 948

宋富强1 , 2 , 3 , 张一平1 , 胡建湘1 , 许再富1 , 肖来云1 . 植物生长抽梢期和气候因子对株高生长影响[J]. Plant Diversity, 2009, 31(02): 178-182.

SONG Fu-Qiang^{, ,} , ZHANG Yi-Ping, HU Jian-Xiang , XU Zai-Fu , XIAO Lai-Yun. The Influences of Shooting Duration and Climatic Factors on Plant Height Growth[J]. Plant Diversity, 2009, 31(02): 178-182.

植物生长抽梢期和气候因子对株高生长影响

The Influences of Shooting Duration and Climatic Factors on Plant Height Growth

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