【摘要】 对宁夏贺兰山自然保护区的地衣物种进行实地考察,并结合现有的研究资料,对保护区地衣分类和垂直分布特征进行了分析。在贺兰山自然保护区共记录到地衣44种,含1变种(狭叶梅衣),隶属于21属,其中以壳状地衣最多。对贺兰山地衣垂直分布特征的初步研究表明,地衣沿海拔梯度升高物种数增加,但是到了高山草甸,地衣物种数下降。总的来看,地衣在高海拔比低海拔多,阳坡比阴坡多,疏林比密林多。更多还原

【Abstract】 Field test on lichens in Helanshan Mountain Nature Reserve was carried out in this paper. Combined with existing research materials, lichens classification and its vertical distribution were analyzed. There were 44 lichens species belonging to 21 classes in the reserve, including one variant. The results showed that the number of lichens species increased along with the altitude increase. However, lichens species number decreased at alpine meadow. It was concluded that at high altitude, sunny slope and in sparse areas, it was easier for lichens to survive.更多还原