| 现代银杏叶脉参数初步研究 |
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| 引用本文： | 崔鑫,李想,陈睿,邢天悦,孙跃武.现代银杏叶脉参数初步研究[J].世界地质,2016,35(3):601-607. |
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| 作者姓名： | 崔鑫 李想 陈睿 邢天悦 孙跃武 |
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| 作者单位： | 1. 吉林大学 地球科学学院，长春 130061; 2. 吉林大学 古生物学与地层学研究中心，长春 130026; 3. 东北亚生物演化与环境教育部重点实验室，长春 130026 |
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| 摘 要： | 对南京现生银杏叶片的长枝阳叶、短枝阳叶和短枝阴叶的形态参数和叶脉参数进行观察和度量。结果显示:长枝阳叶、短枝阳叶和短枝阴叶的叶脉密度分别为14.78±2.44 cm、16.05±2.57cm、15.31±2.34 cm,叶脉指数分别为0.090±0.026、0.098±0.037、0.091±0.027,差别不显著。表明,银杏叶生长位置和光照强度对其叶脉参数影响不大。
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| 关 键 词： | 银杏 叶形 叶脉密度 叶脉指数 |
Preliminary study on the venation parameters of Ginkgo |
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| CUI Xin,LI Xiang,CHEN Rui,XING Tian-Yue,SUN Yue-Wu.Preliminary study on the venation parameters of Ginkgo[J].World Geology,2016,35(3):601-607. |
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| Authors: | CUI Xin LI Xiang CHEN Rui XING Tian-Yue SUN Yue-Wu |
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| Institution: | 1. College of Earth Sciences，Jilin University，Changchun 130061，China; 2. Research Center of Paleontology and Stratigraphy，Jilin University，Changchun 130026，China; 3. Key Laboratory for Evolution of Past Life ＆ Environment in Northeast Asia (Jilin University)，Ministry of Education， Changchun 130026，China |
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| Abstract: | It is measured the shape and venation parameters of sun and shade leaves on short- shoots and long- shoots of modern Ginkgo leaves in Nanjing，China． The venation density of these leaves are 14. 78 ± 2. 44 cm， 16. 05 ±2. 57 cm and 15. 31 ±2. 34 cm，respectively for the sun leaves on long- shoots，sun and shade leaves on short- shoots． The venation index of these leaves are 0. 090 ±0. 026，0. 098 ±0. 037 and 0. 091 ±0. 027，respec- tively． This indicates that the venation parameters are not influenced by whether they are born on short- shoots or long- shoots，and by where they live under sun or shade． |
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| Keywords: | Ginkgo leaf morphology venation density venation index |
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