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沙地白扦林是一种非常罕见的森林生态系统类型,它分布在内蒙小腾格里沙漠东部的固定沙丘上,是内蒙古植物区系的重要标志林。森林的种类组成比较简单,以草原值物种类为主。白扦林可划分为两个类型,沙地藓类苔草白扦林和沙地禾草杂类草白扦林。白扦林在蔽荫条件下更新良好,最后可能发展成一个相对稳定的森林顶极类型。本文根据沙地白扦林的立地条件、气候条件、森林更新特点和生长状况,提出了沙地白扦林扩大营造范围。
White cuttings of sandy land is a very rare type of forest ecosystem, which distributes in the fixed sand dunes in the eastern part of the Little Tenggeli Desert in Inner Mongolia. It is an important indicator forest of Inner Mongolia flora. The species composition of the forest is relatively simple, mainly grassland value species. White cuttings can be divided into two types, sandy moss Carex grass cuttings and sandy grass grasses white cuttings. White cuttings in shady conditions update well, and finally may develop into a relatively stable type of forest climax. According to the site conditions, climatic conditions, renewal characteristics and growth status of Shirakagasa, the scope of Shikisai Shikinin expansion was proposed.