| 甘肃中部蛇苔(Conocephalum conicum (L.) Dum)表皮特征与稳定碳同位素组成沿海拔的变化 |
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| 引用本文： | 李瑞云,王秋军,高正海,贾高文,孙柏年.甘肃中部蛇苔(Conocephalum conicum (L.) Dum)表皮特征与稳定碳同位素组成沿海拔的变化[J].兰州大学学报(自然科学版),2012,48(2):9-14. |
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| 作者姓名： | 李瑞云 王秋军 高正海 贾高文 孙柏年 |
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| 作者单位： | 兰州大学地质科学与矿产资源学院,兰州,730000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目(2012CB822000);国家自然科学基金项目(41172022);高等学校博士学科点专项科研基金项目(20100211110019) |
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| 摘 要： | 为了解苔藓植物对环境变化的反应,采集了甘肃中部地区不同海拔的蛇苔植物( Conocephalum conicum(L.)Dum),分析了它的叶状体稳定碳同位素组成(δ13C值)和叶状体表皮特征.结果表明:蛇苔植物δ13C值的范围为-32.399‰～-29.497‰,随着海拔的升高而变大；叶状体表皮细胞面积和空气孔面积均随着海拔的升高而减小.相关分析表明:叶状体δ13C、表皮细胞面积和密度、空气孔面积与海拔的相关性都达到了显著水平(P＜0.05).
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| 关 键 词： | 蛇苔 表皮特征 空气孔 稳定碳同位素组成 海拔 甘肃 |
Variation of epidermal features and stable carbon isotope composition of Conocephalum conicum(L.) Dum through different elevations in central Gansu province |
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| LI Rui-yun
,
WANG Qiu-jun
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GAO Zheng-hai
,
JIA Gao-wen
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SUN Bai-nian.Variation of epidermal features and stable carbon isotope composition of Conocephalum conicum(L.) Dum through different elevations in central Gansu province[J].Journal of Lanzhou University(Natural Science),2012,48(2):9-14. |
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| Authors: | LI Rui-yun WANG Qiu-jun GAO Zheng-hai JIA Gao-wen SUN Bai-nian |
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| Institution: | School of Earth Sciences,Lanzhou University,Lanzhou 730000,China |
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| Abstract: | Specimens of Conocephalum conicum(L.)Dum were collected from central Gansu province to study how bryophytes respond to the environmental variation.All the specimens were from different elevation.Stable carbon isotope composition and epidermal features were analysed.The value of stable carbon isotope composition is-32.399‰~-29.497‰,and increased along with an increase in elevation.The area of epidermal cells and air pores had a positive correlation with the elevation.The results of correlation analysis showed that stable carbon isotope composition,area of epidermal cells and air pores were all closely related with the elevation(P <0.05). |
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| Keywords: | Conocephalum conicum(L ) Dum epidermal feature air pore stable carbon isotope composition elevation Gansu province |
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