青海省宁大路边坡植被建植试验

从2005—2006年8月在宁大路边坡植被建植试验,结果表明,覆盖度最大的组合为阳坡的苜蓿 扁穗冰草,可达95%,而阴、阳边坡赖草 柠条组合的盖度变化幅度均最大,从8%左右到80%,且物种多样性也最高。对不同物种在阴、阳边坡株高变化比较得出,沙棘在阴坡生长优于阳坡,而骆驼蓬和白刺阳坡优于阴坡,其他变化均不明显。

Vegetation Establishment Experiment on NingDa highway slope of Qinghai

In order to determine the optimal combination of different plant species,a vegetation establishment experiment was conducted on NingDa highway slope of Qinghai during the year of 2005 and 2006.The results showed that the largest canopy was Agropyron cristatum Medicago sativa on north facing aspect and the coverage was 95%.The canopy of Leymus secalinus Caragana korshinskii varied from 8% to 80% on both north facing aspect and south facing aspect.The plant height change showed that Hippophae rhamnoides grew well on north facing aspect than on south facing aspect,and Peganum harmala and Nitraria tongutorum grew well on south facing aspect,and other species showed no obvious differences on both aspects.