期刊
AGRICULTURAL AND FOREST METEOROLOGY
卷 145, 期 3-4, 页码 186-194出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.agrformet.2007.04.018
关键词
shelterbelt; shelter distance; total area density; width; minimum relative wind speed
Optical porosity is the important structural feature of two-dimensional (2-D) artificial fences and narrow shelterbelts, but not for 3-D, or wide shelterbelts. To determine the important features of wide shelterbelts, we measured the mean wind speed around eight natural shelterbelts of various widths Wand total area densities Ad. Our results show that the product of Wand Ad, but not Wor Ad alone, is useful for predicting the wind sheltering around fully 3-D shelterbelts. There was a strong negative correlation (p < 0.01) between W x Ad and the minimum relative wind speed. Also, the shelter distance generally increased with increasing W x Ad. (c) 2007 Elsevier B.V. All rights reserved.
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