珠三角人居绿地木本植物数量特征研究

Study on the quantitative characteristics of cultivated woody plant in the residential area of the Pearl River Delta Region

采用典型抽样法选取珠三角地区6市的40个居住区,全面分析了使用的园林木本植物种类组成、植物来源和物种多样性等指标,旨在为园林植物景观设计提供科学依据。研究表明:研究地共有木本植物161种,其中乔木118种、灌木43种(含观赏竹类9种),分属57科115属;产于中国的种类占62.1%,国外引进种占37.9%;乔木类别中以观叶观形树种和观花树种为主,两者占总种类比例达54%,灌木类别中以观叶观形的为主,占总种类的14.9%,重要值前列的美丽异木棉、细叶榄仁、银海枣、大叶伞、黄花鸡蛋花、凤凰木、大王椰子、桃花心木、簕杜鹃等种类已经在本地区引种多年,与乡土植物种类无明显差异,代表了华南地区的植物景观特色,种植设计时可以优先选用。

We selected40residential areas of6cities in the Pearl River Delta region by typical sampling method,and analyzed the plant composition,plant sources and woody plant species diversity.The results show that161woody plant species are surveyed,including118tree species,43shrub species(including9ornamental bamboos),belonging to57families and115genera.These plant species are produced in China accounted for62.1%,with imported ones accounted for37.9%.Categories with foliage of trees are accounted for54%.Categories with foliage of shrubs are accounted for14.9%.The forefront plant species of higher important value are Chorisia speciosa,Terminalia mantaly,Phoenix sylvestris,Schefflera actinophylla,Plumeria rubra,Delonix regia,Roystonea regia,Swietenia mahagoni,Bougainvillea spectabilis,etc.These species as same as native plant species have been introduced to this region for many years,representing the characteristics of plant landscape in Southern China.Therefore,planting design can be preferred.