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随着我国经济的发展,城市建设的步伐加快。城市绿化是城市建设的一个组成部分,已有向香化、美化、静化、垂直绿化的趋向发展。然而,北方地区气候寒冷,城市绿化中普遍存在着落叶树多、常绿树少、早春花少、品种单调、冬景荒凉的问题,而许多南方花木又不适宜在北方栽植。因此,大力开发耐寒花木资源,从而丰富和提高耐寒观赏植物的种类和质量,是北方城市加速绿化的先决条件。吉林省通化市园艺研究所以城市绿化为己任。几年来对长白山区耐寒观赏植物、野生花卉资源进行了调查,发现了百多种能耐-40℃以下的观赏植物、野生花卉。长白山是一个丰富的植物宝库,这里有四季常青的耐寒松柏,艳丽芳香的观花观叶植物,红果满枝的观果植物,以及终年翠绿的地被植物、绿篱树种,
With the economic development in our country, the pace of urban construction has been accelerated. Urban afforestation is an integral part of urban construction and has been developed toward the direction of afforestation, beautification, static and vertical afforestation. However, there are many deciduous trees, fewer evergreen trees, less early spring flowers, monotonous varieties and desolate winter scenery in the cold climate and the urban greening in the northern part of China. However, many southern flowers are unfit for planting in the north. Therefore, vigorously develop cold-blooming flowers and trees resources, thereby enriching and improving the species and quality of cold-resistant ornamental plants, is a prerequisite for accelerated greening in northern cities. Tonghua City, Jilin Province Institute of Horticulture gardening urban responsibility. Over the past few years, Changbai Mountain cold-resistant ornamental plants, wild flower resources were investigated and found that more than 100 species can tolerate below -40 ℃ ornamental plants, wild flowers. Changbai Mountain is a rich treasure trove of plants. There are everlasting cold-resistant pine and cypress trees, beautiful and fragrant ornamental flower foliage plants, red and full-bodied ornamental plants, as well as perennial green cover plants, hedgerow species,