摘要
对5种丛生竹叶片的光响应参数进行测定,并利用4种光响应模型进行数据拟合。结果显示:4种模型的拟合曲线与实测曲线较为接近,R^(2)值为0.92~0.99,表明4种模型的拟合程度均较高。不同模型对最大净光合速率(P_(max))、光饱和点(LSP)、光补偿点(LCP)和暗呼吸速率(Rd)的拟合结果存在差异,其中,采用直角双曲线修正模型,5种丛生竹的P_(max)拟合值与实测值最接近,而采用其他3个模型,5种丛生竹的P_(max)、LSP、LCP和Rd拟合值大多与实测值存在一定差距。4种模型中,直角双曲线修正模型的拟合效果总体较好,可作为丛生竹的最优光响应曲线拟合模型。
The light response parameters of leaves of five sympodial bamboo species were measured,and the data were fitted with four light response curve models.The results show that the fitting curves of four models are close to the measured curves,the R^(2) values are 0.92-0.99,indicating that the fitting degrees of four models are all relatively high.There are differences in fitting results of different models on maximum net photosynthetic rate(P_(max)),light saturation point(LSP),light compensation point(LCP)and dark respiration rate(Rd),in which,the fitting values of P_(max) of five sympodial bamboo species are all closest to the measured values by using modified rectangular hyperbola model,while P_(max),LSP,LCP,and Rd of five sympodial bamboo species have certain differences between the fitting values and the measured values when using the other models.The fitting effect of modified rectangular hyperbola model is the best among four models,which can be used as the optimal light response model for sympodial bamboo.
作者
李雪飞
陈珑
饶惠玲
李键
闫淑君
吴承祯
杨环玲
LI Xuefei;CHEN Long;RAO Huiling;LI Jian;YAN Shujun;WU Chengzhen;YANG Huanling(College of Forestry,Fujian Agriculture and Forestry University,Fuzhou 350002,China;College of Ecology and Resources Engineering,Wuyi University,Nanping 354300,China)
出处
《植物资源与环境学报》
CAS
CSCD
北大核心
2022年第2期88-90,共3页
Journal of Plant Resources and Environment
基金
国家自然科学基金资助项目(32071578)
福建省交通运输科技市场主导性重点科技项目(201823)。
关键词
丛生竹
光合作用
光响应模型
光响应参数
sympodial bamboo
photosynthesis
light response model
light response parameter
