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湍流运动与生态边界层厚度(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1993年01期
Page:
9-15
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
TURBULENCE AND THICKNESS OF ECOBOUNDARY LAYER.
Article ID:
1000-2006(1993)01-0009-07
Author(s):
Wang Xingli Xiong Wenyu(Chinese Academy of Meteorological Sciences)
Nanjing Forestry University
Keywords:
Turbulent flux Momentum Heat Water-vapour Thickness of ecoboundary layer
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1993.01.002
Document Code:
A
Abstract:
The structure of ecoboumdary layer and its function in the physiological activities of plants are further revealed through the analysis of the time-space variations of turbulent fluxes and their vertical gradients. In a dense tea plantation, the source and sink of material and energy are located in a part where branchlets and leaves are so crowded together as to be recognized as an entity or ecobody with specific functions when an investigation is made in a larger scale. Thickness of an ecoboundary layer is a distance between a plant and its physical environments within which they interact directly and effectively, Whereas beyond this limit no more direct interaction exists. For a tea plantation, thethickness of ecoboundary layer (D) can be approximately evaluated by the equation D=(BA) , Where HC is canopy height, (BA) is function of physiologicel activities of plants. In the case of =1, = 1, D will vary between 0. 08HC-0.16HC which is a valuable reference for investigating the environment of an ecosystem.

References

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Last Update: 1900-01-01