城市绿地保护珍稀濒危植物的实践

文章以杭州环湖绿地为例,对区域内13个块状公园绿地和3条道路绿地开展珍稀濒危植物保护实践调查,结果发现:杭州环湖绿地共栽植了32种珍稀濒危植物,隶属27科、31属,其中濒危种1种,渐危种5种,稀有种5种;列入国家重点保护和浙江省级重点保护的分别有17种和10种;乔木类珍稀濒危植物有20种,灌木类和草本类均为6种,93.8%的种类生长良好;不同种类的珍稀濒危植物在环湖绿地出现的频度差异明显,大部分种类尚未大面积栽植,利用城市绿地保护珍稀濒危植物有很大的潜力。未来在谨慎评估珍稀濒危植物引入城市绿地可能带来的风险的基础上,可以考虑将更多的珍稀濒危植物应用于城市绿化,促进珍稀濒危植物的保护。

Conservation of Rare and Endangered Plants with Urban Green Space

This paper investigates the conservation practices of rare and endangered plants in 13 park green spaces and 3 road green spaces around the West Lake in Hangzhou.The results show that there are 32 rare and endangered plant species,belonging to 27 families and 31 genera,which include 1 endangered species,5 vulnerable species and 5 rare species.There are 17 species and 10 species respectively listed as national key protected plants and as Zhejiang provincial key protected plants.Among the endangered species,there are 20 arbor species,6 shrub species and 6 herb species,and 93.8%of these species grow well.The appearance frequency of different rare and endangered plants in the green spaces around the West Lake is obviously different and most of them have yet been planted widely.It suggest that there are great potentials to use urban green space for the conservation of rare and endangered plants.In the future,more rare and endangered plants should be applied to urban greening for their conservation based on the prudent assessment of the risks that the introduction of rare and endangered plants into urban green space could bring.