半干旱地区公路岩质边坡植被恢复技术工程试验——以内蒙古赤峰-通辽高速公路为例  

Experimental Study on Woody Plant Community Construction of Road Rock Slope in Semi-arid Area:A Case Study on Chifeng-Tongliao Expressway in Inner Mongolia

作　　者：齐藤诚[1] 邵琪[1] 顾卫[1] 戴泉玉[1] 富樫智[1] 

机构地区：[1]北京师范大学地表过程与资源生态国家重点实验室,北京100875

出　　处：《公路交通科技》2010年第12期145-151,共7页Journal of Highway and Transportation Research and Development

基　　金：国家自然科学基金面上项目(30870467);北京市自然科学基金项目(8073029);交通部西部交通建设科技项目(200631800087)

摘　　要：针对半干旱地区公路岩质边坡的生态恢复难题,以内蒙古赤峰-通辽高速公路某岩质边坡为例,采用保育块技术与客土喷播技术相结合的方法构建以木本(灌木)为主、草本植物为辅的坡面植物群落。试验结果表明,此方法可使木本植物成活率达到60%以上且长势良好;草本植物生长茂盛,地上部生物量达自然阴坡生物量水平;物种构成以木本植物和多年生草本植物为主,群落稳定且植被覆盖度高于70%;移植的保育块树苗的根系结构与天然树木相似,具有主根发达、侧根不多但较强壮、根系呈网络状深入土中等特征。To solve the ecologic restoration problem of road rock slope in semi-arid area,the woody plant community was constructed using the nursery block and soil spray-sowing technique,taken the Chifeng-Tongliao expressway in Inner Mongolia for example.The results show that（1） the woody plants grew well and their survival rate is more than 60%;（2） the herbaceous plants grew strongly and their aboveground biomass has attained the level of natural shady slopes;（3） the plant community is stable and its coverage is more than 70%,which basically consist of woody plants and perennial herbs;（4） the root structures of nursery block seedlings are similar to those of natural ones,with a sturdy taproot and several strong lateral roots,which formed a network structure and penetrated into deeper soil layer.

关 键 词：环境工程 岩质边坡 保育块技术 半干旱地区 木本植物 根系结构 

分 类 号：S731.8[农业科学—林学] U418.9[交通运输工程—道路与铁道工程]