MO Yaying,YU Jinliang,LI Nianlin,et al.Photosynthetic and Carbon Fixation Characteristics of 9 Evergreen Magnoliaceae Species[J].Northern Horticulture,2016,40(17):82-86.[doi:10.11937/bfyy.201617020]
九种木兰科常绿树种的光合与固碳特性研究
- Title:
- Photosynthetic and Carbon Fixation Characteristics of 9 Evergreen Magnoliaceae Species
- 文献标志码:
- A
- 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12.944 g?m-2?d-1,云南拟单性木兰(9.543 g?m-2?d-1)和川含笑(6.333 g?m-2?d-1)也较大,而峨眉含笑最小(2.223 g?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。
- Abstract:
- 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(12.944 g?m-2?d-1) followed by Manglietia moto(9.543 g?m-2?d-1)and Michelia wilsonii subsp.szechuanica(6.333 g?m-2?d-1),while Michelia wilsonii was the lowest(2.223 g?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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备注/Memo
第一作者简介:莫亚鹰(1982-),女,硕士,高级工程师,研究方向为植物保育。E-mail:behindfar@aliyun.com.责任作者:余金良(1971-),男,硕士,高级工程师,研究方向为植物资源保护与系统进化。E-mail:Yu700001@126.com.基金项目:浙江省“十二五”花卉新品种选育重大科技专项资助项目(2012C12909-2)。