阳春市古树名木资源调查及其特征分析

Investigation and Characteristic Analysis of Ancient and Famous Trees Resources in Yangchun City

阳春市有着丰富的古树名木资源,通过调查统计,阳春市古树名木共有1675株,隶属于35科69属96种,其中,大戟科、豆科、樟科为优势科。分析了阳春市古树名木的种类与数量、分布特征、生长及环境特征和古树群落分布特征。结果表明:从分布特征看,生长在乡村的古树为1608株,其数量是生长在城区的24倍,占建档古树名木总株数的96.00%;从生长特征可知,生长势正常的古树有1644株,占建档古树名木总株数的98.15%,衰弱级、濒危级和死亡级古树仅占建档古树名木总株数的1.85%;从生长环境状况来看,1675株古树中生长环境好的有1615株,整体古树生长环境较好;从古树群落分布现状来看,最具代表性的古树群落为古红锥Castanopsis hystrix群落和古荔枝Litchi chinensis群落。总体而言,阳春市古树名木生长环境较好,保存得较完整,可以更好地实施下一步保护措施。

Yangchun city is rich in ancient and famous trees resources.According to the investigation statistics,there are 1675 ancient and famous trees in Yangchun city,belonging to 35 families,69 genera and 96 species.Among them,Euphorbiaceae,Leguminousae and Lauraceae are the dominant families.This paper analyzed the species and quantity characteristics,distribution characteristics,growth and environment characteristics and ancient tree community distribution characteristics of ancient trees in Yangchun.The results showed that the number of ancient trees growing in rural areas was 1608,which was 24 times that in urban areas,accounting for 96.00%of the total number of ancient and famous trees in the archives.According to the growth characteristics,there were 1644 ancient trees with normal growth,accounting for 98.15%of the total number of ancient and famous trees in the archives,and only 1.85%of the total number of ancient and famous trees in the archives were at the weak,endangered and dead levels.In terms of the growth environment,1615 of 1675 ancient trees had good growth environment,and the overall growth environment of ancient trees was good.According to the distribution status of ancient tree communities,the most representative ancient tree communities were ancient red cone community and ancient lychee community.Generally speaking,the ancient and famous trees in Yangchun city have good growth environment and complete preservation,which can better carry out the next protection measures.