| 稳定碳同位素在森林植物水分利用效率研究中的应用 |
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| 引用本文： | 张硕,刘勇,李国雷,陈晓,孙巧玉,许飞.稳定碳同位素在森林植物水分利用效率研究中的应用[J].世界林业研究,2013,26(3):39-45. |
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| 作者姓名： | 张硕 刘勇 李国雷 陈晓 孙巧玉 许飞 |
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| 作者单位： | 北京林业大学省部共建森林培育与保护教育部重点实验室，北京 100083 |
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| 基金项目： | 国家自然基金(30972353);高等学校博士学科点专项科研基金(20090014110011) |
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| 摘 要： | 介绍了植物水分利用效率与稳定碳同位素的相关性，以及影响植物碳同位素丰度值δ13C的主要因子，重点分析几种重要环境因子对林木δ13C的影响，表明降雨量、土壤水分状况、温度、光照和CO2浓度等因素都会在不同程度上影响植物叶片气孔导度和CO2的固定，导致植物δ13C发生变化；并从森林抚育间伐措施对δ13C的影响，水分胁迫条件下δ13C的变化，以及δ13C的替代测定方法等方面提出了研究展望。
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| 关 键 词： | 稳定碳同位素 水分利用效率 森林植物 |
| 收稿时间： | 2012/12/19 0:00:00 |
Application of Stable Carbon Isotope to Research on Water Use Efficiency of Forest Plant |
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| Zhang Shuo,Liu Yong,Li Guolei,Chen Xiao,Sun Qiaoyu and Xu Fei.Application of Stable Carbon Isotope to Research on Water Use Efficiency of Forest Plant[J].World Forestry Research,2013,26(3):39-45. |
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| Authors: | Zhang Shuo Liu Yong Li Guolei Chen Xiao Sun Qiaoyu and Xu Fei |
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| Institution: | Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China |
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| Abstract: | The stable carbon isotope is an internationally advanced method to determine the water use efficiency(WUE)of plants.This paper introduced the correlation between plant WUE and stable carbon isotope and some factors influencing δ13C as well. The analysis of some important environmental factors influencing the δ13C value of forest trees showed that light, precipitation, temperature, humidity, and CO2 concentration can affect to different extent leaf stoma conductance and CO2 fixation, and lead to the δ13C changes. Finally, future research directions were discussed in terms of the influence of forest thinning measures on δ13C, the δ13C changes in water stress condition and the alternative method to determine the WUE. |
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| Keywords: | stable carbon isotope water use efficiency forest plant |
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