不同放牧季节与放牧方式对长芒草型干草原植被恢复的影响

通过对长芒草-杂类草型草原实行暖季划区轮牧、自由放牧及围栏封育3种不同利用方式,探讨了划区轮牧在草地植被恢复中的作用.结果表明,在参试条件相同的情况下,轮牧区通过对草地生态系统的协调和家畜采食方式的控制,以长芒草为主的禾本科牧草的质量分数显著高于自由放牧区和围栏封育区,代表草原退化的菊科种群有所降低,草地生产力明显高于对照区,划区轮牧十分有利于长芒草草场的植被恢复,对今后草地资源可持续利用有着十分重要的意义.

Influence of the Different Grazing Seasons and Ways on Vegetation Restoration in Arid Grassland of Stipabungeana

According to rotation grazing in warm season,freedom grazing and seal the breeding,the action of rotation grazing in vegetation restoration of meadow was discussed.The result showed that in the same reference,rotation grazing correspond with meadow biogeocenose and control critter eating ways,according to the quality percentage of graminaceous grass of changmang grass is higher than the grazing area of freedom and seal the breeding.Composition group represent of meadow degeneration is lower than before,meadow production is higher than the area of comparison in evidence,which indicate that rotation grazing is favorable to the restoration of changmang grass,and very important to meadow resource sustainable utilization in the future.