Abstract

The phytocoenotic characteristics of leymus-chinensis cenoses growing in soils of different types in the meadow–steppe, the floodplain–steppe, and the halophytic grasslands in the western Trans-Baikal region are considered. The botanical composition is found to consist of 28 glicophyte species, 17 halotolerant glicophytes, and 6 halophytes. It is determined that the genus Leymus contains three species: Leymus chinensis, L. buriaticus, and L. littoralis. The botanical composition of leymus stands in the westerm Trans-Baikal region includes 51 species, 20 families, and 40 genera. The species are predominantly assigned to the steppe complex based on different types of xerophytes belonging to the Asian type of distribution. Rhizome species are a major biomorph component; in addition, a significant proportion is composed of species with short life cycles. The variation in similarity between the leymus species compositions is weak to moderate due to the significant involvement of families and genera with low species richness. The primary production of leymus cenoses comprises 1029—2370 g/m² per year. The aboveground phytomass is almost completely formed by Leymus chinensis. The biochemical composition, feed value, and protein ratio of edificator dry matter are influenced by the environmental opportunities for growth, while they generally correspond to the standard indicators.

中文翻译：

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跨贝加尔湖西部地区的羊草（Leymus chinensis（Trin。）Tzvelev）：当前生长环境中的Cenosis结构，产量和生化成分

摘要

考虑了在贝加尔河西部地区草甸-草原，洪泛平原-草原和盐生植物草原上不同类型土壤中生长的羊草种群的植物群落特征。发现植物组成由28种滑生植物种类，17种耐盐类植物和6种盐生植物组成。已确定，羊草属包含三个物种：羊草（Leymus chinensis），紫苏乳杆菌（L. buriaticus）和滨海乳杆菌。西湿特贝加尔湖地区的羊草的植物组成包括51种，20科和40属。根据属于亚洲分布类型的不同类型的旱生植物，主要​​将该物种分配给草原复合体。根茎是主要的生物形态成分。此外，很大一部分是由生命周期短的物种组成的。由于家庭和属的物种丰富度较低，因此，苔藓种类组成之间相似性的变化从弱到中等。leymus普查的主要产量为每年1029-2370 g / m ²。地上植物几乎完全由羊草形成。脱水机干物质的生化组成，饲料价值和蛋白质比受环境生长机会的影响，而它们通常与标准指标相对应。