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Position: Home > Articles > Photosynthetic and Carbon Fixation Characteristics of 9 Evergreen Magnoliaceae Species Northern Horticulture 2016 (17) 82-86

九种木兰科常绿树种的光合与固碳特性研究

作  者:
莫亚鹰;余金良;黎念林;张鹏翀
单  位:
杭州植物园
关键词:
木兰科;日净固碳量;光响应曲线;因子分析
摘  要:
以杭州植物园栽植的9种木兰科常绿树种为研究对象,利用LI-6400XT便携式光合仪测定其光合日变化和光响应曲线,计算日净固碳量,拟合和比较光响应参数,并进行因子分析,计算综合得分,全面对比和分析其适应性。结果表明:杂交金叶含笑的日净固碳量最大为12.944g·m~(-2)·d~(-1),云南拟单性木兰(9.543g·m~(-2)·d~(-1))和川含笑(6.333g·m~(-2)·d~(-1))也较大,而峨眉含笑最小(2.223g·m~(-2)·d~(-1));光响应参数进一步反映了其适应性和固碳潜能,并依据因子分析的结果得出,杂交金叶含笑、川含笑和云南拟单性木兰适应性较强。建议在杭州城市园林中,选用杂交金叶含笑、川含笑和云南拟单性木兰营造碳汇林。
译  名:
Photosynthetic and Carbon Fixation Characteristics of 9 Evergreen Magnoliaceae Species
作  者:
MO Yaying;YU Jinliang;LI Nianlin;ZHANG Pengchong;Hangzhou Botanical Garden;
关键词:
Magnoliaceae;;net diurnal carbon fixation;;light response curve;;factor analysis
摘  要:
Taking nine evergreen Magnoliaceae tree species planted in Hangzhou Botanical Garden as the research materials,the diurnal change of net photosynthetic rate and light response curve were measured by LI-6400 XT.The results showed that Michelia foveolata×figo had the highest net diurnal carbon fixation(12.944g·m~(-2)·d~(-1))followed by Manglietia moto(9.543g·m~(-2)·d~(-1))and Michelia wilsonii subsp.szechuanica(6.333g·m~(-2)·d~(-1)),while Michelia wilsonii was the lowest(2.223g·m~(-2)·d~(-1)).The light response curve parameters reflected the growth adaptability and carbon sequestration capacity.According to the results of factor analysis,Michelia foveolata×figo,Michelia wilsonii subsp.szechuanica and Manglietia moto had higher adaptability.Combining with two aspects of characters,Michelia foveolata×figo,Michelia wilsonii subsp.szechuanica and Manglietia moto could be used as afforesting species in Hangzhou.

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