深圳清林径水库库区岩质边坡植被恢复技术

Vegetation Restoration Technology of Rock Slope in Reservoir Area of Shenzhen Qinglinjing Reservoir

水库库区是城市中水环境保护的重要生态敏感区域,水源保护管理要求对库区岩质边坡植被恢复提出了新的要求和挑战。针对深圳清林径水库库区岩质边坡黄土裸露治理工程存在的边坡坡度和高程大、地质结构不稳定、水库管理对外源客土和灌溉水限制等难点,采取了配置适宜的客土营养基质,应用FS(Fence-Stripe)客土喷播技术,优化植物种类、配比和养护管理技术等措施。施工完成12个月后开展生态修复效果跟踪调查,结果显示:高陡边坡植被生长状况良好,草本植物覆盖率达95%以上,周边自然生长的乔灌木开始向坡面溢生,裸露的高陡岩质边坡进入植被自然演替,取得了良好的社会效益和生态效益。

The reservoir area is an important ecologically sensitive area for urban reclaimed water environmental protection.The requirements of water source protection and management in the reservoir area put forward new requirements and challenges to the vegetation restoration of rock slope.In view of the difficulties existing in the loess bare treatment project of rock slope in the reservoir area of Qinglinjing in Shenzhen,such as large slope elevation,unstable geological structure,and limitation of external source guest soil and irrigation water in reservoir management,measures such as configuring appropriate guest soil nutrient matrix,applying Fence-Stripe guest soil spraying technology,and optimizing the species,proportions,and maintenance of plant and management techniques were taken.12 months after the completion of the construction,a follow-up survey of ecological restoration effect was carried out.The results show that the vegetation on the high and steep slope grows well,the coverage rate of herbs plants reaches more than 95%,the surrounding naturally growing trees and shrubs begin to overflow to the slope,and the exposed high and steep rocky slope enters the natural succession of vegetation,which has achieved good social and ecological benefits.