multiple belt meaning in Chinese

多层皮带

In the part of vertical distribution , the author make an initial explore of its vertical distribution regulations in the 4 following aspects : the comparison of grasshopper community in different vertical belt ; the definition and comparison of dominant species in every vertical belt ; analysis of similarity and the definition of multiple belt and single belt species , in the author ' s opinion , vertical distribution of grasshopper in changbai mountain region do not have integrated regularity , its richness is related to the complexity of vegetation composition , and affected by other environmental factors
关于垂直分布的研究，作者主要从不同垂直带内蝗虫群落的比较、各垂直带中优势种的确定和比较、相似性的分析和多带种及单带种的确定4个方面，对其垂直分布规律进行了初步探讨。作者认为，长白山地区蝗虫的垂直分布不具有整体的规律性，蝗虫种类的丰富度直接与植被组成的复杂程度相关，同时受生境中其它环境因子的影响。