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当前位置: 首页 > 文章 > 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 南京林业大学学报(自然科学版) 2015,39 (1) 55-61
Position: Home > Articles > Analysis of photosynthesis and transpiration characteristics of typical tree species in the broad-leaved mixed forest of Fengyang Mountain——based on grey correlation method Journal of Nanjing Forestry University(Natural Sciences Edition) 2015,39 (1) 55-61

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

作  者：
吴雁雯;张金池;刘鑫;韩诚;顾哲衍
单  位：
南京林业大学林学院水土保持与生态修复重点实验室
关键词：
凤阳山;阔叶混交林;净光合速率;蒸腾速率;灰色关联分析
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(Pn)和蒸腾速率(Tr)的影响。结果表明:在Pn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;Tr日变化主要受气孔导度(Gs)和叶片水压亏缺(Dvp)两个因子影响,云锦杜鹃与木荷Tr日均值较小且Pn日均值较大,能更为有效地积累碳同化量;影响植物Pn的主要因子有Gs、水分利用效率(EWU)和光合有效辐射(RPA),而影响植物Tr的主要因子包括Gs与RPA;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。
译  名：
Analysis of photosynthesis and transpiration characteristics of typical tree species in the broad-leaved mixed forest of Fengyang Mountain——based on grey correlation method
作  者：
WU Yanwen;ZHANG Jinchi;LIU Xin;HAN Cheng;GU Zheyan;Key Laboratory of Soil and Water Conservation and Ecological Restoration, College of Forestry,Nanjing Forestry University;
关键词：
Fengyang Mountain;;broad-leaved mixed forests;;net photosynthetic rate(Pn);;transpiration rate(Tr);;grey relational analysis
摘  要：
This paper conducted some measurements,with Li-6400 portable photosynthetic apparatus,on six typical treespecies,namely,Viminea wall,Rhododendron fortunei,Schima superba,Cyclobalanopsis stewardiana,Ilex wenchowensis,Sycopsisand so on within the forest ecosystem of Fengyang Mountain. Their photosynthesis and transpiration characteris-tics in diurnal patterns at canopy level were determind. Furthermore, the influence degree of physiological and ecologicalfactors on net photosynthetic rate(Pn) and transpiration rate(Tr) were analysed and compared by using grey correlationmethod.Results showed that onlyIlex wenchowensispresented double peak in the daily variation ofPn,Rh. fortuneihadthe strongest ability to use weak light. The main factors influencingTrwere stomatal conductance(Gs) and leaf vaporpressure deficit(Dvp). The daily average transpiration rate ofRh. fortuneiandS. superbawere lower while the daily aver-age net photosynthetic rates of those two tree species were higher,so that their ability to accumulate carbon assimilationwas more stronger;The main factors affecting the plantPnwere stomatal conductance(Gs) and water use efficiency(EWU), meanwhile, the main factors affecting the plantTrwereGsand photosynthetic active radiation(RPA). Accordingto the grey correlation analysis,Rh. fortuneipossesses superior adaption and resistence to the habitat,S. sinensishasweak ability to adapt to the habitat due to the restriction by illumination, stomates and moisture.

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