丽水南城古树资源调查与分析

A Research of Large old Trees in South of Lishui City

为了更好地保护古树,发挥其价值,对丽水南城的古树进行了调查,并且分析了古树的种类组成、植物区系、多样性、分布区域及生长状况。结果表明:丽水南城古树共计62株,隶属于10科12属12种。一级保护古树有2株,树龄最长的是榉树,约为810年;二级保护古树有2株。从种的分布区类型看,温带分布的类型占较大优势;古树密度为0.57株/km^2,高于全国平均水平;古树种类的75%分布在大梁山地区;绝大部分古树长势良好。同时,针对南城古树的分布特点、生长现状,提出了针对性的保护措施。

In order to better protect large old trees (over 100 years) and give full play to their value, the large old trees in the south of Lishui city were investigated, and their species composition, flora, diversity, distribution area and growth status were analyzed. The results showed: there are 62 large old trees falling into 12 species, 12 genera and 10 families, among which are 2 trees under first-class protection and the oldest is an zelkova of about 810 years;there are 2 other large old trees under secondary protection;the temperate distribution is dominant in areal types of these species;their density reaches 0.57 trees/km^2, which is higher than the national average level;75%of them are distributed in Daliangshan area;most of them grow well. Based on the distribution characteristics and growth status of these large old trees, the protective measures are proposed accordingly.