内蒙古典型草原原生群落植物种群动态趋势分析

The Analysis of Regression on theTypical Steppe in Inner Mongolia

本文用数理统计方法 ,对内蒙古典型草原带的羊草草原的原生群落长期监测的数据进行了趋势分析 ,研究了该群落及其重要植物种 (羊草 Leymus chinensis、大针茅 Stipagrandis、小叶锦鸡儿 Caragana microphylla、西伯利亚羽茅 Achnatherun sibiricum、冰草Agropyron michnoi)的年际动态。得到了草原群落及重要种生物量年际变化的趋势直线 。

By using the monitoring data been collected in the standing site,the research station of steppe ecosystem,Academy of China since 1981, the dynamic trend of typical grassland in the reaches of the Silin river is studied.The results of regression analysis show that the plant community in this plot has been stable since 1981. Thus, this community can be identified as the climax of that area.