生态科学2004，Vol.23Issue(1)：12-15,19,5.
内蒙古锡林郭勒草地的草种组分与放牧压的关系研究
Relationship between the botanical composition and grazing intensities in Xilingoule grasslands, Inner Mongolia
摘要
Abstract
A study on the botanical composition,abovegroud biomass and stand species diversity was carried out in grasslands under different grazing intensities in the Xilin River basin in Ineer Mongolia.The grasslands near the village were more intensively grazed than the stands away from the village.Lightly grazed stands were basically dominated the intensively grazed stand.The biomass varied from 303 g-m-2 in lightly grazed stand to 127.3 g-m-2 in intensively grazed stand.Stand species diversity indices were 3.13-3.64 irrespective of grazing pressure.The stand wuality under varying pasture coditions was evalusted using a stand quality index(SQI).The SQIs were 278 for an intensively grazed stand and 667 for a lightly grazed stand,which was located 4km away from the village.Thirteen years of enclosure improved the SQI of the grassland from 420 to 624.关键词
放牧草地/群落物种成成分/现存生物量/放牧压/生长状态指数(SQI)Key words
Biomass/Floristic composition/Grazing pressure/Stand quality index(SQI)分类
生物科学引用本文复制引用
亦如瀚,林一六,中村辙,盐见正卫..内蒙古锡林郭勒草地的草种组分与放牧压的关系研究[J].生态科学,2004,23(1):12-15,19,5.基金项目
暨南大学引进人才科研启动经费(640562,2003-1) （640562,2003-1）
