恩施古楸资源概况及表型多样性  

General Situation of Resources and Phenotypic Diversity of Catalpa bungeiin Enshi

作　　者：黄国伟[1] 陈贝贝 张新叶[1] Huang Guowei;Chen Beibei;Zhang Xinye(Hubei Academy of Forestry Wuhan 430075;Enshi Academy of Forestry Enshi 445000)

机构地区：[1]湖北省林业科学研究院,武汉430075 [2]恩施州林业科学研究院,恩施445000

出　　处：《湖北林业科技》2019年第3期23-26,87,共5页Hubei Forestry Science and Technology

基　　金：湖北省技术创新专项重大项目“速生丰产人工林可持续生产关键技术研发”(2016ABA111)

摘　　要：以恩施州各县市的古树名木统计数据为信息来源,调查了恩施州境内的古楸树资源。结果发现:楸树在恩施境内广泛分布,生长海拔范围300~1400m,主要生长在房前屋后,土地平缓肥沃地带,受人为干扰严重,伴生的乔木、灌木、草本等种类丰富多样。所有调查样本总体上树高平均值为18.45m,胸径为46.04cm,最大一棵树龄在600a以上,不同地点楸树的叶片、果实、树皮颜色、腺点等特征形态各异,具有丰富的遗传多样性,这为楸树优良品种选育提供了良好的物质基础。Based on the statistical data of ancient trees and famous trees in the counties and cities of Enshi,this paper investigated the resources of ancient Catalpa bungei in Enshi.The results showed that the trees were widely distributed in Enshi,with an altitude range of 300~1 400 m.They mainly grew in the front house,the land was gentle and fertile,and it was seriously disturbed by human beings.The associated trees,shrubs and herbs were rich and varied.The average tree height and DBH were 18.45 m and 46.04 cm respectively.The largest tree was more than 600 years old.The leaf,fruit,bark color and glandular spot of different locations were different in shape,and had rich genetic diversity.This provides a rich material foundation for the breeding of fine varieties of Catalpa bungei.

关 键 词：古楸树 生长特征 表型特征 恩施 

分 类 号：S759.6[农业科学—森林经理学]