根据对毛乌素沙地不同土壤水分和光照条件下中国沙棘无性系跟踪挖掘和测定 ,比较分析了无性系生长格局和生物量分配规律。结果表明 ,在较高的水分或光资源有效性条件下 ,地上生物量所占比例大 ,这些生物量的再分配主要用于分株的树干和叶片生长 ,萌蘖根分枝强度高但隔离者长度小 ,无性系生长格局倾向于集团型 ,这样有利于无性系对已占据生境的巩固和利用。在较低的水分或光资源有效性条件下 ,地下生物量所占比例大 ,这些生物量的再分配主要用于隔离者和根系的生长 ,结果形成了较长的隔离者但萌蘖根的分枝强度小 ,无性系生长格局倾向于游击型 ,从而促使无性系尽快超过不利的微生境斑块、提高分株生长于有利生境斑块的概率 ,并在更大的空间获取资源 Based on the follow-up excavation and determination of Chinese seabuckthorn clones under different soil moisture and light conditions in Mu Us desert, the clonal growth pattern and biomass allocation were comparatively analyzed. The results showed that under the condition of higher water or light resource availability, the aboveground biomass accounted for a large proportion. The redistribution of these biomass was mainly used for the growth of tree branches and leaves of ramets, and the sprouting branches had high intensity but isolation Small length, clonal growth pattern tends to group type, which is conducive to the cloning of the occupied habitat to consolidate and use. Under low water or light resource availability conditions, the proportion of underground biomass is high, and the redistribution of these biomass is mainly used for the growth of isolators and root systems, resulting in longer isolators but sprouting roots Branching intensity is small, clonal growth pattern tends to guerrilla type, thus promoting clonal as soon as possible over unfavorable micro-plaque, improve the probability of ramet growth in favorable habitat plaques, and access to resources in a larger space