美国绿化树种引种栽培研究

Study on Introduction of Greening Tree Species from America

摘要:

为丰富宜昌市的树种资源,2001年4月,宜昌市林科所从美国俄勒冈州一次性引进4.5万株、21个绿化树种(品种),并开展了栽培技术研究.试验结果表明:此次引进的21个绿化树种(品种)除6个针叶树种(品种)因在途时间太长而死亡外,15个落叶树种(品种)在宜昌生长发育正常.其中:美国红栌、加拿大紫荆、红花七叶树、日本鹅耳枥等树种(品种)表现出特有的观赏性,极具市场开发前景,部分树种(品种)现已引种到北京、武汉、郑州、秦皇岛.

Abstract:

45 000 plants and 21 greening tree species (varieties) were introduced from Oregon State of America by Yichang Prefecture Forestry Institute in April of 2004 in order to enrich resources of tree species in Yichang Prefecture which were studied in cultivation technique. The tested results showed that 6 conifer tree species (varieties) were died due to long time transportation and 15 broadleaved tree species (varieties) were growing properly in Yichang out of the 21 tree species. Among which: the tree species (varieties) of Cotinus coggygria, Cercis canadensis, Aesculus pavia,Carpinus japonica and other tree species (varieties) appear their antique ornaments that enjoyed the developmental prospect in the market, part of them have been introduced into Beijing, Wuhan, Zhengzhou and Qinghuangdao.