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
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.
