地理学报 ›› 1991, Vol. 46 ›› Issue (1): 107-114.doi: 10.11821/xb199101013

• 论文 • 上一篇    下一篇

林带对空气的湍流交换系数影响

王浩   

  1. 南京大学大气科学系
  • 出版日期:1991-01-15 发布日期:1991-01-15
  • 基金资助:

THE EFFECTS OF SHELTERBELT ON THE COEFFICIENT OF ATMOSPHERIC TURBULENT EXCHANGE

Wang Hao   

  1. Department of Atmospheric Sciences, Nanjing University
  • Online:1991-01-15 Published:1991-01-15

摘要: 本文从近地层动力学和热力学方程出发,用数值方法研究了林带对空气的湍流交换系数影响。研究结果表明:在林冠层以上,林带附近的湍流交换系数比较大;在林冠层以下,林带附近的湍流交换系数比较小。林带影响在高度为2.7—3.5倍树高、透风率为0.35左右铅直范围内最大。

关键词: 林带, 湍流强度, 湍流交换系数, 数值研究

Abstract: The coefficient of atmospheric turbulent exchange is an important factor which affects the climate near the surface and the soil climate. Due to the difficuky of observation, the study of the effects of shelterbelt on the vertical structure of the coefficient of atmospheric turbulent ex-change has been scarcely carried out, In this paper, we try to simulate numerically the ef-fects based on the dynamic and thermaldynamic equations in the constant flux layer, and obtain the satisfied results.

Key words: Shelterbelt, Turbulent intensity, The coefficient of atmospheric turbulent exchange, Numeri cally simulation