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外来草种在中国高速公路边坡生态防护中应用较为广泛,但其难养护,易退化。基于生态演替理论,采用现场试验方法研究草灌混播生态防护技术,并结合CF网抗冲刷能力,建立一种新型的“CF网+草灌混播”的生态防护技术。选取依托工程典型工段,设计了多组包含草灌、草灌乔等物种和CF网、铁丝网和土工格室等防护形式以及不同基质基材配比在内的试验,通过对各试验区的物种生长情况及冲刷情况进行长期观测,提出了适合该依托工程的“CF网+草灌混播”生态防护技术。
Exotic grass species in China’s highway slope ecological protection is more widely used, but its difficult to maintain, easy to degenerate. Based on the theory of ecological succession, a field experiment was conducted to study the ecological protection technology of grass-shrub-grass mixed culture. In combination with the CF network anti-erosion ability, a new type of ecological protection technology of “CF net + grass-shrub mixed planting” was established. Based on the typical section of the project, a series of experiments were designed to protect the species of grass irrigating, Caoping shrub, CF net, barbed wire mesh and geocell and the ratio of different matrix substrates. Growth and erosion of long-term observation of the situation, put forward for the relying on the project “CF net + grass mixed broadcast ” ecological protection technology.