Shrub-grass vegetation was established on the rocky slope of Longhui-Dongkou Section of Shaohuai Expressway (Shaoyang to Huaihua) by following the below procedures: ① According to regional climatic characteristics, g...Shrub-grass vegetation was established on the rocky slope of Longhui-Dongkou Section of Shaohuai Expressway (Shaoyang to Huaihua) by following the below procedures: ① According to regional climatic characteristics, grasses like Cynodon dactylon, Papalum natatum and Sorghum bicolor (L.) Moench can be applied as pioneering species, local shrubs with drought, cold and infertility resistance like Nerium ndicum Mill., Amorpha fruticosa, Pyracantha fortuneana, and Mycoplasma organism as constructive species, local arbors like Robinia pseudoacacia and Albizia kalkora as accompanying species; ② Slope should be treated first before the establishment of shrub-grass vegetation, then anchored, and covered with nets after the mortar solidified and hardened; after the base materials spraying which includes both substrate spraying and surface spraying, the slope should be promptly covered with non-woven fabrics. The results showed that green coverage ratio of shrub-grass vegetation achieved 90% or above, all quality indexes met the expected standards, which implied that the establishment of shrub-grass vegetation is a rapid and effective way for the vegetation restoration of rocky slopes along expressways, and worth of being promoted in similar climatic zones.展开更多
由深路堑土石方开挖而形成的高陡光滑岩质边坡往往具有很大安全隐患和环境影响,需要采用有效的绿化防护技术以增强其稳定性和发挥生态功能。结合某高速公路扩建工程施工,从土工材料与植物生态条的结合、植物品种的选择与组合、以及土基...由深路堑土石方开挖而形成的高陡光滑岩质边坡往往具有很大安全隐患和环境影响,需要采用有效的绿化防护技术以增强其稳定性和发挥生态功能。结合某高速公路扩建工程施工,从土工材料与植物生态条的结合、植物品种的选择与组合、以及土基加固等方面,探讨了适用于陡峭且光滑岩质边坡的绿化防护关键技术,包括TBS(turf base seeding)植草(灌)防护和喷播养护策略,增加客土厚度和采用双层TBS镀锌网片加固等。实践表明,上述措施能显著提升植被的绿化成活率和边坡的稳定性。研究结果可为类似地质环境下的绿化防护工程的设计与施工提供有价值的参考。展开更多
基金Supported by 948 Key Projects of State Forestry Administration (2008-4-32)~~
文摘Shrub-grass vegetation was established on the rocky slope of Longhui-Dongkou Section of Shaohuai Expressway (Shaoyang to Huaihua) by following the below procedures: ① According to regional climatic characteristics, grasses like Cynodon dactylon, Papalum natatum and Sorghum bicolor (L.) Moench can be applied as pioneering species, local shrubs with drought, cold and infertility resistance like Nerium ndicum Mill., Amorpha fruticosa, Pyracantha fortuneana, and Mycoplasma organism as constructive species, local arbors like Robinia pseudoacacia and Albizia kalkora as accompanying species; ② Slope should be treated first before the establishment of shrub-grass vegetation, then anchored, and covered with nets after the mortar solidified and hardened; after the base materials spraying which includes both substrate spraying and surface spraying, the slope should be promptly covered with non-woven fabrics. The results showed that green coverage ratio of shrub-grass vegetation achieved 90% or above, all quality indexes met the expected standards, which implied that the establishment of shrub-grass vegetation is a rapid and effective way for the vegetation restoration of rocky slopes along expressways, and worth of being promoted in similar climatic zones.
文摘由深路堑土石方开挖而形成的高陡光滑岩质边坡往往具有很大安全隐患和环境影响,需要采用有效的绿化防护技术以增强其稳定性和发挥生态功能。结合某高速公路扩建工程施工,从土工材料与植物生态条的结合、植物品种的选择与组合、以及土基加固等方面,探讨了适用于陡峭且光滑岩质边坡的绿化防护关键技术,包括TBS(turf base seeding)植草(灌)防护和喷播养护策略,增加客土厚度和采用双层TBS镀锌网片加固等。实践表明,上述措施能显著提升植被的绿化成活率和边坡的稳定性。研究结果可为类似地质环境下的绿化防护工程的设计与施工提供有价值的参考。