高速公路岩质边坡植被恢复模式特征研究——以北京-承德高速公路(三期)为例  

Plant community characteristics of brush-grass disposal mode on expressway rock slope at early vegetation restoration

作　　者：乔领新[1] 刘荣堂[1] 

机构地区：[1]甘肃农业大学草业学院/草业生态系统教育部重点实验室/甘肃省草业工程实验室/中-美草地畜牧业可持续发展研究中心,甘肃兰州730070

出　　处：《草原与草坪》2011年第5期69-72,共4页Grassland and Turf

摘　　要：以北京-承德高速公路(三期)建设项目为试验项目,研究了岩质边坡植被恢复中灌草配置模式初期植被群落特征。结果表明:岩质边坡植被恢复中灌草混合群落播种3个月后覆盖度达90%,复层群落特征日益明显;初期群落植株高度表现为:野菊花>紫穗槐>沙打旺>紫花苜蓿>高羊茅>胡枝子。播种灌木在植被恢复初期生长受限,移栽灌木是实现边坡灌木为主植被恢复的有效途径;坡面生态恢复初期6种乡土植被入侵坡面,植物群落中植物种类增多;随植物的生长,土壤理化性状发生了变化并有下降的趋势,但幅度较小。Plant community characteristics,vegetation coverage,plant height and invasive plants,of Brush-Grass Disposal Mode for expressway rock slopes was surveyed at early vegetation restoration stage based on investigating expressway construction project of Beijing-chengde expressway.The results showed that the maximum vegetation coverage of slopes coverage up to 90% after vegetation planting three month.plant height performance as follows：Dendranthema indicumAmorpha fruticosaAstragalus adsurgensMedicago sativaFestuca anmundinaceaLespedeza bicolor.Six native plants invaded slope and soil nutrients decreased at aslow rate with vegetation growing.It indicated that the transplanting technology of Brush-Grass Disposal Mode was one of the most effective method for vegetation restoration on the cutting rocky slopes of expressway.

关 键 词：高速公路 岩质边坡 植被恢复 草灌模式 植物群落特征 

分 类 号：U418[交通运输工程—道路与铁道工程]