湖北省罗田县银杏古树资源的调查与评价

Investigation and Evaluation on Ancient Ginkgo Tree Resources in Luotian County of Hubei Province

对湖北省罗田县现有银杏古树资源及其特征进行了实地调查和综合分析与评价,结果表明:该县现有银杏古树409株,其水平分布呈现"分布零散、各地都有、北多南少"的特点,垂直分布在海拔900 m以下;树龄相对较小,无千年古树;雄株少;一般生长在房前屋后或路边,总体生长状态不佳;开发利用程度很低,管理保护水平不高,急需加强。

Ancient Ginkgo tree resources and its＇ characters were analyzed and evaluated, based on the results of field investigation in Luotian County of Hubei Province. The results show that there are 409 ancient Ginkgo trees in Luotian County, and the majority is female; these trees distribute at altitude of below 900 m, and scattered in almost every town, but most of them are in the north of the county; they are relatively young and none of them, are more than 1 000 years old. They usually grow besides houses or roads and lots of them do not grow well; exploitation and protection on the ancient Ginkgo trees are very limited, and should be strengthened.