对不同退化程度“黑土滩”高山嵩草无性系分株构件和克隆生长进行了研究,结果表明,在一定退化程度下随着无性系面积的增大,高山嵩草营养分株、生殖分株数量及生物量均趋于增大,极度退化的草地中无性系变化无此规律。在轻度、中度和重度退化程度下,随着退化程度的增加,高山嵩草无性系营养分株能力加强,生殖分株能力减弱;极度退化的草地已呈现典型的“黑土滩”景观,高山嵩草的克隆生长维持在最低水平。高山嵩草分蘖节直径伴随着退化程度的加大有增加的趋势,分蘖节距离地面的高度变化不明显。 The results showed that with the increase of clonal area, alpine Kobresia vegetative ramet, reproductive system The number of ramets and biomass tended to increase, and there was no such change in the extremely degraded grassland clones. With mild, moderate and severe degree of degeneration, with the increasing degree of degeneration, alpine Kobresia clonal nutrient ramification ability and reproductive ramets ability weakened; extremely degraded grassland has shown typical “black soil beach” Landscape, alpine Kobresia clonal growth maintained at a minimum level. Alpine Kobresia tillering node diameter increases along with the degree of degeneration to increase, tillering pitch distance from the ground height change is not obvious.