互助县古树名木资源调查及其保护对策

为加强古树名木资源的保护管理,采用GPS定位、文献跟踪、资料收集、现地鉴定、数码拍照等方法,2010-2018年在青海省互助县开展古树名木资源调查和评价。结果表明:(1)2010-2018年增或减古树名木数量没有变化,共有55株古树,全部为三级保护古树。以青杨、青海云杉居多,占总株数的90.91%。(2)古树名木全部以散生状态分布在乡村,4株为国家所有、48株为集体所有、3株为个人所有。(3)古树名木生长环境全部为中等,生长正常的有40株、衰弱的有15株。(4)古树名木树龄分布范围在108~288a,平均154a;树高分布范围在9~36m,平均20m;胸围/地围分布范围在150~740cm,平均364cm;冠幅分布范围在5~25m,平均16m。(5)2018比2010年树高增加了2m、胸围/地围增加了2cm、平均冠幅增加了2m。最后提出了古树名木资源保护管理的有关建议。

Resources and Protection of Old and Notable Trees in Huzhu County

In order to enhance the protection and management of old & notable trees, the methods of GPS, literature study for data collection, field identification, digital photograph and so on were adopted to investigate into the old ¬able trees for in Huzhu county at Qinghai province were investigated and evaluated from 2010 to 2018.The result showed that: i) there were 55 old & notable trees in Huzhu county at Qinghai province, which are categorized as class three of protected trees and dominated by Populus cathayana and Picea crassifolia;ii) they were all distributed in a sporadic state, with 4 trees state owned, 48 trees collectively owned and 3 trees privately owned;iii) all of them were in moderate growing environment, 40 trees in normal conditions of growth,15 in flagging conditions of growth;iv) their ages were ranging from 108 a to 288 a, with mean age at 154 a;the tree height was ranging from 9 m to 36 m with mean height at 20 m;the distribution range of tree bust/(ground perimeter) was150~740 cm, with mean value at 364 cm;crown width was ranging from 5 m to 25 m with mean width at 16 m;v) the tree height has increased by 2 m from 2010 to 2018, the tree bust/(ground perimeter) increased by 2 cm and mean crown width increased by 2 m. Suggestions are given for protection and management of old & notable trees in the future.