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对高原鼢鼠种群不同发展阶段下植被的群落特征进行了为时3年的研究。结果表明,植物种的多样性、植被的盖度、多度和地上生物量均表现为随鼠群数量的增加和作用时间的延长而增加,而群落的平均高度则因低矮植物种的增加而有所下降。在一定条件下,高原鼢鼠与植被相互作用可在某种状态下取得平衡并保持稳定。在地下生物量的组成上,直根和根茎的总量在地下生物量中所占比重保持相对稳定,但在鼠群发展初期,直根所占比重较小,而根茎所占比重较大,随着鼠群数量趋于饱和,直根比重增大,根茎相应降低;在须根组成中,莎草科植物根系随鼠群数量和作用时间的增加而增加,禾本科植物根系则相应减少,须根系总量保持相对稳定。
The community characteristics of vegetation under different development stages of plateau zokor population were studied for three years. The results showed that plant species diversity, vegetation coverage, abundance and aboveground biomass all increased with the increase of population and prolongation of time, while the average height of the communities increased due to the increase of low-plant species And declined. Under certain conditions, the interaction between plateau zokor and vegetation can be balanced under certain conditions and remain stable. In the composition of underground biomass, the proportion of straight roots and rhizomes in underground biomass remained relatively stable, but in the initial development of the rat population, the proportion of straight roots was smaller and the proportion of rhizomes was larger, As the number of rodents tended to be saturated, the proportion of root to root increased, and the number of rhizome decreased accordingly. In the fibrous roots, the roots of Cyperaceae increased with the number of rodents and the duration of action, while those of gramineous plants decreased correspondingly. The total volume remained relatively stable.