陕西省延安市城市绿化应大力开发利用乡土树种

Local Tree Species Should Be Spread in Urban Greening in Yanan City of Shanxi Province

近几年陕西省延安市城市绿化中以求新求洋为时尚,偏重于引进外来树种,而忽视了乡土树种的开发和利用,虽然起点高、投入大,但实际效果不理想。笔者从乡土树种的优势、延安市园林绿化植物应用的误区、优良乡土树种数量少的原因和对延安市开发利用优良乡土树种建议等方面进行阐述,分析了制约乡土树种应用的因素,提倡在城市绿化中大力推广应用乡土树种。

Recent years,Yah＇ an urban greening tended to fashioned itself into a more popular way, and biased introducing a lot of foreign tree species, while ignoring the exploitation and utilization of local tree species. Although having a higher level with great more input, the actual effect is not ideal. The writer analyzed the advantage of local tree species, local landscaping plants application pitfalls, the reasons for seldom using indigenous tree species and some advice of indigenous tree expounded. Meanwhile, the writer discussed the factors restricting native tree species using and advocated to generalize more native tree species in the urban greening.