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- Title
基于树木年轮学的古树树龄估算——以敦煌市香水梨为例.
- Authors
秦春; 夏生福; 秦占义; 王晓锋; 杨柳; 杨保
- Abstract
Age is the sole criterion for identifying ancient trees. Dendrochronology was used to examine the age of the old trees of Pyrus ussuriensis in the Fourth group of Doujiadun Village (formerly Yangjiayuanzi), Mogao Town, Dunhuang City. As all the old pear trees had been decayed and hollow, we collected cores of P. ussuriensis of different ages to establish the age-related curve of tree radial growth, and estimated the number of tree rings in the missing segment. Combined with accurate count on tree rings, the age of P. ussuriensis was restored. The results showed that the average age of the 13 old pear trees in the orchard was (280±35) years, presenting further evidence for the record about old pear trees in Dunhuang Zhi. These old trees could be classified as the third-class ancient tree according to tree age, and should be properly protected and preserved. This study provided a detailed scientific basis to resolve the dispute over the conservation of ancient P. ussuriensis in Dunhuang City.
- Subjects
TREE age; DENDROCHRONOLOGY; TREE growth; OLD age; TREES
- Publication
Yingyong Shengtai Xuebao, 2021, Vol 32, Issue 10, p3699
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.202110.014