前言陕西省位于我国中部偏北,因秦岭山脉横贯于境内,对南北气团的交流起“屏障”作用,致使陕西省分为北部寒冷干燥、南部温暖湿润的两大部份。不论气候、植被和土壤以及动物区系等自然地理环境方面,都是由北方类型逐渐向南方类型过渡。反映在动物区系组成上,南部属于东洋界,北部属于古北界。自然生境类型的显著差异给予各类森林动物提供了良好的栖息环境。一、区系特征 Foreword Shaanxi Province is located in the north of central China. Because of the Qinling Mountains traversing the territory, Shaanxi Province plays a “barrier” role in the exchange of air masses in the north and south. Shaanxi Province is divided into two parts: cold and dry in the north and warm and humid in the south. Regardless of the natural geographical environment such as climate, vegetation and soil as well as animal fauna, the transition from the northern type to the southern type has proceeded gradually. Reflected in the composition of fauna, the southern part belongs to the Oriental world, the north belongs to the ancient northern boundary. Significant differences in natural habitat types provide a good habitat for all kinds of forest animals. First, the floristic characteristics