山地高校生境中的藤本植物刍论

On Lianas at Campuses of Mountain Universities

山地大学的校园植被建设问题较为复杂,而乐山高校可以视为典型案例。藤本植物在乐山高校园林中主要有两种用途,即坡面生态工程与园林绿化。从生态工程学角度看,前者对于操作工艺有更高的要求;从植被生态学角度讲,后者的生境构成却更为复杂。在后一种环境中,大型藤本植物可能通过缠绕、覆压、郁闭的方式绞杀景观树木。因此,一方面,校园藤本植物管理必须重视自然群落与人工园林之间的生境落差;另一方面,在长远规划中可以尝试校园植被的自然演替。

The cultivation of campus vegetation in mountain universities is very complex. The colleges in Leshan city may be seemed as a typical example. The lianas at campuses of Leshan colleges are used for two purposes,namely, slope eco-engineering and landscaping. From the perspective of eco-engineering,the former has higher requirements for the operation process,while from the perspective of vegetation ecology,the latter is more complex in the habitat composition. In the latter context,large lianas might strangle landscape trees through winding,weighing, and canopy closure. Therefore,on the one hand,in the management of campus lianas,attention should be paid to the habitat gap between natural communities and artificial gardens;on the other hand,the natural succession of campus vegetation can be adopted in the long-term planning.