江淮分水岭地区干旱分析

通过对江淮分水岭地区气象和水文资料以及多年旱涝状况的分析，得出了该地区基本的气候特点。该地区气候可划分为东、中、西3部分，西部气候湿润而稳定，旱涝灾害较少；中部气候干燥而稳定，旱灾多于涝灾；东部气候变化复杂，分析认为东部气候类型是整个江淮分水岭地区的基本气候类型，中、西部气候是在该基本气候类型基础上受山地和水域等周围地理环境影响而形成的。

Drought Analysis of Watershed Region Between Changjiang River and Huaihe River

According to the analysis of meteorological and hydrographic data, the main climatic characteristics of the watershed region between the Changjiang River and Huaihe River were studied. This region was divided into three kinds of climatic regions, the western, the middle and the eastern part. The western part is a humid region with a stable climate due to the influence of the Dabieshan Mountain. The middle part is dry and stable affected by the Chaohu Lake. The eastern part where climate changes complicatedly is the region with the basic climate type of the watershed region, while the climate types in the western and the middle part are the variations of the basic climate type.