广东省东源县古树特征研究

Characteristic of Ancient Trees in Dongyuan County

为了摸清东源县古树资源情况,推进古树建档工作,保护古树,文章对河源市东源县15个镇的古树进行了实地和走访调查,结果显示:东源县15个镇共有古树738株,隶属于30科42属54种。树种以红锥(Castanopsis hystrix)为主(248株),其次为榕树(Ficus microcarpa)、木荷(Schima superba)、朴树(Celtis sinensis)、樟(Cinnamomum camphora)等。古树树龄大多数在100~299 a之间,达661株,59株古树树龄在300~499 a之间,18株古树树龄大于500 a;树高平均为16.98 m,胸径最大的为榕树,达467.92 cm,平均为96.51 cm,冠幅平均为264.35 m2。大多数古树均正常生长,仅有少数衰弱。根据调查结果,建议加快东源县古树建档工作,加强管理和保护,对于生长环境不好的古树,改善其周边环境,并定期开展病虫害防治。

In order to figure out the amounts of ancient trees in Dongyuan County and provide better protection,ancient trees in Dongyuan County were investigated with combining methods of field survey and visiting local people.The results showed that there were 738 ancient trees in Dongyuan country belonging to 54 species,42 genera and 30 families.Most of them were Castanopsis hystrix(248),then Ficus microcarpa,Schima superba,Celtis sinensis,Cinnamomum camphora.The individual number was 661,56 and 18 with tree age of 100–299 a,300–499 a and more than 500 a,respectively.The average of height was 16.98 m;average of diameter at breast height was 96.51 cm,with the top 1 was Ficus microcarpa(467.92 cm)and the average of crown area was 264.35 m^2.Most of them are at good condition.According to this investigation,it is suggested to accelerate establishing the ancient tree archives,to enhance protection,to conduct habitat improvement and pest control periodically.