哀牢山（西南季风山地）空气湿度资源的分布特征

DISTRIBUTION CHARACTERISTICS OF THE AIR HUMIDITY RESOURCE OF THE AILAO MOUNTAINS (SOUTHWEST MONSOON MOUNTAINOUS AREA)

根据哀牢山北段东、西坡山地不同海拔８个气象站的同期湿度资料，研讨了该山地空气湿度资源的年变化、东坡与西坡差异及其垂直分布特征。结果表明：湿度最大值在７月出现，最小值在２～３月出现；西坡的湿度资源优于东坡，尤其是干季，西坡的增湿效应最显著；年均湿度随高度变化一般呈线性分布，水汽压随海拔升高而降低，相对湿度仅在雨季随海拔高度升高而增加，而在干季则与海拔高度相关性最差。

The air humidity data measured at 8 different-altitude observatories on the east and west slopes in the northern part of the Ailao mountains are used as a basis for studying the annual variation of the air humidity resource, the air humidity difference between the east and west slopes and the vertical distribution characteristics of the air humidity. The findings show that:(a) the maximum humidity occurs in July and the minimum humidity occurs in February-March,(b)the humidity resource on the west slope is better than that on the east slope and in dry season, the humidity increase effect on the west slope is particularly remarkable,(c) the water vapor pressure decreases with the altitude, and (d) the relative humidity increases with the altitude only in rainy season, but in dry season this correlation is very poor.