黑龙江省次生林主要组成树种光合能力与叶片含氮量研究

doi:10.7525/j.issn.1673-5102.2005.03.022

植物研究 ›› 2005, Vol. 25 ›› Issue (3): 345-347.doi: 10.7525/j.issn.1673-5102.2005.03.022

黑龙江省次生林主要组成树种光合能力与叶片含氮量研究

范晶¹, 张玉红²

1. 黑龙江大学农学院, 哈尔滨 150080;
2. 东北林业大学森林植物生态学教育部重点实验室, 哈尔滨 150040

收稿日期:2005-01-07 出版日期:2005-09-15 发布日期:2016-06-14
作者简介:范晶(1971-),女,博士,讲师,主要从事植物生理生态教学和科研工作。
基金资助:
黑龙江省教育厅科学技术研究项目(10543035)

Study on photosynthetic capacity and leaf nitrogen content of main secondary forest-forming species in Heilongjiang Province

FAN Jing¹, ZHANG Yu-Hong²

1. College of Agriculture, Heilongjiang University, Harbin 150080;
2. Key Laboratory of Forest Plant Ecology of Ministry of Education, Northeast Forestry University, Harbin 150040

Received:2005-01-07 Online:2005-09-15 Published:2016-06-14

摘要/Abstract

摘要： 以黑龙江省次生林主要组成树种蒙古栎、白桦、水曲柳、山杨、胡桃楸、黄波罗为研究对象,测定自然状态下这6个树种的光合能力,并分析光合能力与叶片含氮量之间的关系。研究结果表明,树种的光合能力存在明显的季节变化,不同树种间的光合能力、光合潜力存在差异。生长季中,胡桃楸具有最高的光合能力最大值,白桦具有最高的年平均光合能力,蒙古栎具有最大的光合潜力。蒙古栎叶片含氮量与光合能力线性正相关(r=0.97),白桦、水曲柳叶片含氮量与光合能力呈二次曲线相关(r=0.61, r=0.51)。

关键词: 光合能力, 光合潜力, 叶片含氮量, 季节变化

Abstract: In the natural environment, the photosynthetic rate were studied and the relationships between the photosynthetic capacity and N content in the leaf were analyzed in 6 main secondary forest-forming species of Heilongjiang Province (Quercus mongolica, Betula platyphylla, Populus davidiana, Fraxinus mandshurica, Juglans mandshurica, phellodendron amurense). The results showed that the seasonal changes of the photosynthetic capacity were obvious while the photosynthetic rate potential in the 6 species were different. In growing period, the photosynthetic capacity of Juglans mandshurica was the greatest, annual average photosynthetic capacity of Betula platyphylla was the greatest, and the photosynthetic potential of Quercus mongolica was the greatest. Significant linear relationship (r=0.97) between the photosynthetic capacity and leaf nitrogen content was observed in Quercus mongolica, while conic relationships(r=0.61,r=0.51) between the photosynthetic capacity and leaf nitrogen were observed in Fraxinus mandshurica and Betula platyphylla.

Key words: photosynthetic ccapacity, photosynthetic potential, leaf nitrogen content, seasonal changes

范晶, 张玉红. 黑龙江省次生林主要组成树种光合能力与叶片含氮量研究[J]. 植物研究, 2005, 25(3): 345-347.

FAN Jing, ZHANG Yu-Hong. Study on photosynthetic capacity and leaf nitrogen content of main secondary forest-forming species in Heilongjiang Province[J]. Bulletin of Botanical Research, 2005, 25(3): 345-347.

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黑龙江省次生林主要组成树种光合能力与叶片含氮量研究

Study on photosynthetic capacity and leaf nitrogen content of main secondary forest-forming species in Heilongjiang Province

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