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大面积林网化地区近地面层大气的系留气球观测发现，近地面层大气的风、温、湿分为两层，即下边界层和扰动边界层，其厚度和廓线分布与理查逊数有关，在中性天气条件下均满足对数分布规律，边界层（特别是扰动边界层）内的摩擦速度Ｕ．＂与旷野对比点的摩擦速度Ｕ０增大１个数量级，而粗糙度Ｚ＂０增大２个数量级，甚至更大。
The observation of the tethered balloon in the near-surface atmosphere of a large area of forest-sheltered area found that the wind, temperature and moisture in the near-surface layer were divided into two layers, ie, the lower boundary layer and the disturbed boundary layer. The thickness and profile distribution of the air- Which is related to the logarithm, the logarithmic distribution under the neutral weather conditions, and the friction velocity U in the boundary layer (especially the disturbance boundary layer). “Compared with the wilderness, the friction velocity U0 increased by 1 order of magnitude, while the roughness Z” 0 increased by 2 orders of magnitude, or even larger.