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文章对毛乌素沙地不同生境中臭柏群落样地进行物种丰富度、多样性指数 ,及群落的垂直结构和发生演替规律进行了分析。结果表明 ,在臭柏群落的早期 ,物种丰富度较高 ,随着臭柏群落的发展和稳定性增强 ,形成较单一的臭柏群落 ,荫蔽一些林下植物 ,表明臭柏群落具顶极性 ,且垂直结构明显 ,分为灌木层和草本层 ,但生态稳定性较差。臭柏群落依靠克隆生长拓展灌丛范围 ,依据种子传播实现异地迁移
In this paper, the species richness and diversity index of Sabina vulgaris communities in different habitats of Mu Us sandy land were analyzed, as well as the vertical structure and occurrence succession of the communities. The results showed that in the early stage of Sabina vulgaris, the species richness was higher. With the development and stability of Sabina vulgaris community enhanced, Sabina vulgaris formed a single community and shaded some understory plants, indicating that the Sabina vulgaris community had the highest polarity , And the vertical structure is obvious, divided into shrub layer and herb layer, but ecological stability is poor. Sabina vulgaris clonal growth to expand the scope of shrubs, remote migration based on seed