| 兴隆山阴暗针叶林空间格局及其利用光能的对策 |
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| 引用本文： | 罗耀华,陈庆诚,张鹏云.兴隆山阴暗针叶林空间格局及其利用光能的对策[J].生态学报,1984,4(1):10-20. |
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| 作者姓名： | 罗耀华 陈庆诚 张鹏云 |
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| 作者单位： | 兰州大学生物系
(罗耀华，陈庆诚)，兰州大学生物系(张鹏云) |
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| 摘 要： | 采用点-四分法和样方法观测了青杄Picae wilsonii林群落。以样点到四象限最近青杄植株距离与各自个体高度的比值之和,定义为开敞度。以此作为林下光水平的参量,从而定量地分析了它与下层植物的关系。群落空间格局与在利用光能时的调节性和互补性的功能作用相对应。青杄幼苗仅在高开敞度下生长;Shannon-Wiener种多样性指数随开敞度而增加。各个种群在光资源轴上不同分布的生态位重叠指数等多方面研究,证明种群分布对光照水平差异的选择性。
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THE SPATIAL PATTERN OF CONIFEROUS FOREST IN XINGLONG SHAN MOUNTAIN AND ITS STRATEGIES IN USING SUN LIGHT ENERGY |
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| Lua Yaohua.THE SPATIAL PATTERN OF CONIFEROUS FOREST IN XINGLONG SHAN MOUNTAIN AND ITS STRATEGIES IN USING SUN LIGHT ENERGY[J].Acta Ecologica Sinica,1984,4(1):10-20. |
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| Authors: | Lua Yaohua |
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| Institution: | Department of Biology; Lanzhou University |
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| Abstract: | The Coniferous forest community was surveyed and measured by Pointquar-ter and quadrat methods. Opening degree is defined as the sum of ratio of the distance from the point to the nearest coniferous forest irdividuals in each quadrat to their height. The relationship between opening degree and the undergrowths of the quadrat was analysed quantitatively.The community spatial pattern corresponds with its function in regulation ard compensation on use of sun light energy. It is found in our studies that the co... |
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