【摘要】 连续3年对天山北坡草甸草原和干草原进行围栏封育,并对围栏内外不同利用强度下草地植被的植物量、高度、盖度、密度、频度和土壤容重等方面进行了调查,对草地群落结构和立地条件进行了观测。结果显示,围栏封育3年天然草地植物群落的组成基本稳定,围栏内的草地植物量明显高于围栏外草地(P<0.05)。随着利用强度的增加,草地植物种类组成,重要值和土壤含水量明显降低。表明围栏封育可以有效遏止草地退化,对草地恢复效果明显。更多还原

【Abstract】 The study on the effect of enclosure of steppe and meadow in the northern slope of Tianshan Mountains was carried out for 3 years and the yield,height,coverage,density,frequency of plant community and bulky density of soil were monitored.The results showed that the component of plant community did not change,the grass yield of fenced grassland increased significantly.更多还原