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本文对内蒙古几种针茅的特性和分布的分析．指出内蒙古针茅属的分布集中在草原区内，分布最广是石生针茅，其次是克氏针茅。针茅属有性繁殖微弱，成熟种子量不多，入土困难，损伤量大．幼苗死亡率高，特别在退化地段更加突出；无性繁殖为主．分蘖芽集中在果后营养期产生，春季拔节期是少量的．当年枝条不形成分蘖；春季以细根产生为主．拔节期为不定根产生的时期．孕穗和开花期根系向横深伸展；群落生物量为单峰曲线。地上生物量为“金字塔”型，地下生物量是“倒金子塔”型。草地利用过度．草群低矮，根系集中于土壤表层。
In this paper, the characteristics and distribution of several species of Stipa bungeana in Inner Mongolia were analyzed. It is pointed out that the distribution of Stipa in Inner Mongolia is concentrated in the grassland region, the most widely distributed is Stipa bungeana, followed by Kirschner profile. Stigma sexual reproduction is weak, the amount of mature seeds is small, difficult to soil, a large amount of damage. Seedling mortality is high, especially in degraded areas more prominent; asexual reproduction. Tillering buds concentrated in the fruit after the nutrition period, spring is a small amount of jointing. When the branches do not form tillering; spring rooted to fine roots. Jointing adventitious roots of the period. Root booting and flowering stage to the horizontal depth of extension; community biomass as a single peak curve. Aboveground biomass is “pyramid” type, underground biomass is “inverted gold tower” type. Overuse of grassland. Low grass group, roots concentrated in the soil surface.