凤阳山阔叶混交林主要树种光合蒸腾特性研究——基于灰色关联法

吴雁雯; 张金池; 刘鑫; 韩诚; 顾哲衍

doi:10.3969/j.issn.1000-2006.2015.01.011

吴雁雯,张金池,刘鑫,韩诚,顾哲衍

南京林业大学学报（自然科学版） ›› 2015, Vol. 39 ›› Issue (01) : 55-61.

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南京林业大学学报（自然科学版） ›› 2015, Vol. 39 ›› Issue (01) : 55-61. DOI: 10.3969/j.issn.1000-2006.2015.01.011

研究论文

凤阳山阔叶混交林主要树种光合蒸腾特性研究——基于灰色关联法

吴雁雯,张金池^*,刘鑫,韩诚,顾哲衍

作者信息 +

Analysis of photosynthesis and transpiration characteristics of typical tree species in the broad-leaved mixed forest of Fengyang Mountain——based on grey correlation method

WU Yanwen,ZHANG Jinchi^*,LIU Xin,HAN Cheng,GU Zheyan

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摘要

利用Li-6400便携式光合测定仪分别对雷公鹅耳枥(Viminea wall)、云锦杜鹃(Rhododendron fortunei)、木荷(Schima superba)、褐叶青冈(Cyclobalanopsis stewardiana)、温州冬青(Ilex wenchowensis)、水丝梨(Sycopsis)等树种的光合蒸腾特性进行了研究,并利用灰色关联法分析了上述植物各生理生态因子对净光合速率(P_n)和蒸腾速率(T_r)的影响。结果表明:在P_n日变化中,仅温州冬青呈现双峰值,雷公鹅耳枥、云锦杜鹃和温州冬青利用弱光的能力较强,尤以云锦杜鹃最强; T_r日变化主要受气孔导度(G_s)和叶片水压亏缺(D_vp)两个因子影响,云锦杜鹃与木荷T_r日均值较小且P_n日均值较大,能更为有效地积累碳同化量; 影响植物P_n的主要因子有G_s、水分利用效率(E_WU)和光合有效辐射(R_PA),而影响植物T_r的主要因子包括G_s与R_PA; 云锦杜鹃对生境的适应性与抗逆性相对较强,而水丝梨适应该地区环境的能力相对较弱。

Abstract

This paper conducted some measurements,with Li-6400 portable photosynthetic apparatus,on six typical tree species,namely,Viminea wall,Rhododendron fortunei,Schima superba, Cyclobalanopsis stewardiana, Ilex wenchowensis, Sycopsis and so on within the forest ecosystem of Fengyang Mountain. Their photosynthesis and transpiration characteristics in diurnal patterns at canopy level were determind. Furthermore, the influence degree of physiological and ecological factors on net photosynthetic rate(P_n)and transpiration rate(T_r)were analysed and compared by using grey correlation method.Results showed that only Ilex wenchowensis presented double peak in the daily variation of P_n, Rh. fortunei had the strongest ability to use weak light. The main factors influencing T_r were stomatal conductance(G_s)and leaf vapor pressure deficit(D_vp). The daily average transpiration rate of Rh. fortunei and S. superba were lower while the daily average net photosynthetic rates of those two tree species were higher,so that their ability to accumulate carbon assimilation was more stronger; The main factors affecting the plant P_n were stomatal conductance(G_s)and water use efficiency(E_WU), meanwhile, the main factors affecting the plant T_r were G_s and photosynthetic active radiation(R_PA). According to the grey correlation analysis, Rh. fortunei possesses superior adaption and resistence to the habitat,S. sinensis has weak ability to adapt to the habitat due to the restriction by illumination, stomates and moisture.

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吴雁雯,张金池,刘鑫,韩诚,顾哲衍. 凤阳山阔叶混交林主要树种光合蒸腾特性研究——基于灰色关联法[J]. 南京林业大学学报（自然科学版）. 2015, 39(01): 55-61 https://doi.org/10.3969/j.issn.1000-2006.2015.01.011

WU Yanwen,ZHANG Jinchi,LIU Xin,HAN Cheng,GU Zheyan. Analysis of photosynthesis and transpiration characteristics of typical tree species in the broad-leaved mixed forest of Fengyang Mountain——based on grey correlation method[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2015, 39(01): 55-61 https://doi.org/10.3969/j.issn.1000-2006.2015.01.011

中图分类号： S718 Q945.79

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基金

收稿日期:2013-12-05 修回日期:2014-02-25
基金项目:国家林业公益性行业科研专项项目(201104005)
第一作者:吴雁雯,博士生。*通信作者:张金池,教授。E-mail: nfujczhang@sina.com。
引文格式:吴雁雯,张金池,刘鑫,等. 凤阳山阔叶混交林主要树种光合蒸腾特性研究——基于灰色关联法[J]. 南京林业大学学报:自然科学版,2015,39(1):55-61.