湿季指雨季，一地区一年中的多雨时期，常持续一月至数月之久，并具有每年重复出现的特点。与其相对应的是干季。在温度的季节变化不明显，而降水变化比较显著的低纬度地区，往往用干、湿季来划分季节。近赤道地区晴天与雨天往往各绵延半年，故一年之中可分干湿两季。
湿季由于较好的水分条件，土壤酶活性较干季显著增加。
As good water condition in wet season, soil enzyme activity is more obviously than dry season.
从南亚热带到高原山地气候四季变化不大，干湿季节分明。
To the plateau from the south sub-tropical mountain climate Change is not the four seasons, wet and dry season, clearly.
在雨季，高原土壤湿度的变化主要是高原湿季降水变化的结果。
In wet season, the soil moisture change is mainly caused by the precipitation in wet season of Qinghaijfibet plateau.
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