沙丘人工差不嘎蒿植被建立后的微气候变化

MICROMETEOROLOGICAL CHANGES OVER SAND DUNES FOLLOWING ESTABLISHMENT OF ARTIFICIAL ARTEMISIA VEGETATION AT NAIMAN, INNER MONGOLIA

运用文比热量平衡法和空气动力学梯度法初步分析了人工固定沙丘过程中的微气象变化。研究结果表明，随着流沙的固定，反射率减小；净辐射占太阳辐射的比例增大；热收支中，潜热通量所占的份额增多；近地表风速及其垂直切变减小。

Micrometeorological changes after the establishment of artificial Artemisia vegetation on dunes at Naiman, Inner Mongolia are analyzed using the Bowen Ratio Heat Budget Method and the Aerodynamic Gradient Method. The results show that: with stabilization of the sand dunes, albedo decreases; ratio of net radiation to solar radiation increases; share of latent heat flux in the heat budget tends to increase; and wind speed and vertical wind-speed gradient decrease.