抗风耐盐常绿树种弗吉尼亚栎引种初步研究

Preliminary Study on Quercus virginiana Introduction in Eastern China

引进美国弗吉尼亚栎在浙江、上海、江苏三省市海涂和内陆多个地点试种3~4 a,均能正常生长,在杭州湾滨海盐土上生长良好。弗吉尼亚栎苗缺乏发达的侧根和须根,不易移植成活,采用容器育苗和带土大苗造林可显著提高造林成活率和生长量。

The evergreen oak species from USA, live oak （ Quercus virginiana）, was introduced and planted in many sites of Zhejiang, Jiangsu Province, and Shanghai City for 3 - 4 years. The growth of young trees in most sites was good, and that at the sandy saline soil of Hangzhou Bay coast （with 0.3 % ~ 0.5 % salinity）seemed better. Nursery seedlings of live oak had not developed lateral roots so they were not easy to be transplanted. Using small container seedlings and 3-year-old young saplings with the ball clod for plantation greatly raised the survival percent （more than 95 % ） with well growth.