[1]曾群英,刘素青,李林峰,等. 真红树植物的净光合速率与其相关生理生态因子的关系[J].西北林学院学报,2015,30(03):28-34.[doi:doi:10.3969/j.issn.1001-7461.2015.03.05]
　ZENG Qun-ying,LIU Su-qing,LI Lin-feng,et al. Analysis of Net Photosynthetic Rate and Related Physio-ecological Factors of Mangrove Trees in Zhanjiang[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2015,30(03):28-34.[doi:doi:10.3969/j.issn.1001-7461.2015.03.05]
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 真红树植物的净光合速率与其相关生理生态因子的关系()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第30卷
期数:
2015年03期
页码:
28-34
栏目:
出版日期:
2015-05-31

文章信息/Info

Title:
 Analysis of Net Photosynthetic Rate and Related Physio-ecological Factors of Mangrove Trees in Zhanjiang
文章编号:
1001-7461(2015)03-0028-07
作者:
 曾群英1; 刘素青1; 李林峰1; 黄剑坚2
 （1.广东海洋大学 农学院，广东 湛江 524094; 2.广东海洋大学 寸金学院，广东 湛江 524088）
Author(s):
 ZENG Qun-ying1;  LIU Su-qing1;  LI Lin-feng1;  HUANG Jian-jian2
 (1. Agriculture College, Guangdong Ocean University, Zhanjiang, Guangdong 524094, China; 2.Cunjin College, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China)
关键词:
 ; 真红树植物; 净光合速率; 光合特性
Keywords:
 ; mangrove tree;  net photosynthetic rate;  photosynthesis
分类号:
S718.54
DOI:
doi:10.3969/j.issn.1001-7461.2015.03.05
文献标志码:
A
摘要:
 为探讨真红树植物光合生理生态特性，以常见真红树林树种为研究对象，用Li-6400 便携式光合仪测定了净光合速率（Pn）日变化、光合有效辐射(PAR)、气孔导度（Gs）、叶片细胞间CO2浓度(Ci)、叶面温度（Tl）、叶面水气压亏缺（Vpdl）、蒸腾速率（Tr）等指标。结果表明： 1）白骨壤、木榄、桐花树、无瓣海桑的Pn日变化呈“双峰”趋势，秋茄的接近“双峰”，红海榄为“单峰”；2）以Gs（X1）、Ci(X2)、Tr(X3)、Vpdl(X4)、PAR(X5)、Tl(X6)与Pn（Y）进行多元逐步分析得最优回归方程，白骨壤：Y=4.419+0.07X5-6.429X4+0.813X6-0.064X2+0.668X3（R=0.969**），红海榄：Y=-8.035+32.787X1-0.053X2-3.503X4+0.945X6（R=0.963**），木榄：Y=13.528+40.28X1-0.045X2（R=0.938**），秋茄：Y=21.211-0.055X2+18.951X1+0.001X5（R=0.975**），桐花树：Y=63.637-0.448X1-0.053X2+1.995X3+1.770X4+0.001X5-1.461X6（R=0.990**），无瓣海桑：Y=27.368-0.067X2+20.081X1（R=0.985**）；3）白骨壤的Pn与Ci和PAR相关关系最强，其中与Ci是负相关关系，与PAR是正相关关系。红海榄、木榄和无瓣海桑的Gs和Ci对Pn的影响最大，分别是正相关和负相关。秋茄Ci与Pn的相关关系最强，为负相关。桐花树Ci、Tr及Tl与其Pn的偏相关显著性水平高。
Abstract:
 A portable photosynthetic system (Li-6400) was used to measure the diurnal changes of net photosynthetic rate (Pn), photosynthetic active radiation (PAR), stomata conductance (Gs), intercellular carbon dioxide concentration (Ci), leaf temperature (Tl), vapor pressure deficit at the leaf surface (Vpdl), transpiration rate (Tr) of mangrove plant in sunny day. The results showed as follow: 1) the diurnal variation Pn of Avicennia marina, Bruguiera gymnorhiza, Aegiceras corniculatum and Sonneratia apetala appeared a trend of “double peaks”, the diurnal change of Kandelia candel closed to “double peaks”, Rhizophora stylosa was “single peak”. 2) The optimal regression equations of each species were obtained by multiple stepwise analysis: A. marina, Y=4.419+0.07X5-6.429X4+0.813X6-0.064X2+0.668X3(R=0.969**); R. stylosa, Y=-8.035+32.787X1-0.053X2-3.503X4+0.945X6 (R=0.963**); B. gymnorhiza, Y=13.528+40.28X1-0.045X2(R=0.938**); K. candel: Y=21.211-0.055X2+18.951X1+0.001X5 (R=0.975**), Aegiceras corniculatum, Y=63.637-0.448X1-0.053X2+1.995X3+1.770X4+0.001X5-1.461X6 (R=0.990**); S. apetala: Y=27.368-0.067X2+20.081X1 (R=0.985**).3) Pn of Avicennia marina had the strongest correlation with Ci and PAR, which was negatively correlated with Ci, and positively with PAR. Gs and Ci of R. stylosa, B. gymnorhiza and S. apetala exhibited maximum impacts to Pn, and positively and negatively correlated, respectively. Correlation between Ci and Pn of K. candel had the strongest negative correlation. Ci, Tr  and Tl of Aegiceras corniculatum had high level of partial correlation significance with Pn.

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备注/Memo

备注/Memo:
 收稿日期：2014-08-16 修回日期：2014-11-08
基金项目：广东省自然科学基金（S2012010008703，S2013020012779）；广东省海洋渔业科技推广专项基金（2011011I02，A201201I02，A201308E01）；广东省科技计划项目(2012B060400017)；广东省教育厅育苗工程项目（2013LYM_0108）。
作者简介：曾群英，女，高级实验师，硕士，研究方向：森林经理学。E-mail：2633832321@qq.com
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