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The temporal and spatial distribution of Chinese old trees and its analysis
Author(s) -
Zhao Li-mei,
Kun Yang,
Yi Luo
Publication year - 2021
Publication title -
iop conference series earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/658/1/012010
Subject(s) - chamaecyparis , cunninghamia , geography , tsuga , population , china , boundary (topology) , tree (set theory) , afforestation , forestry , altitude (triangle) , physical geography , ecology , biology , botany , mathematics , demography , archaeology , mathematical analysis , geometry , sociology
The oldest old trees in China are distributed in remote and high-altitude areas. Studying the distribution and characteristics of old trees in China is conducive to understanding the impact of human activities on the survival of old trees and plays a great role in the protection of old trees. In this paper, combined with the old tree data set compiled by Jiajia Liu et al., the geographical population boundary of China, etc., the distribution and characteristics of first-class old trees are analyzed and discussed. The results show that: the first-class old trees are generally distributed on the mountains; they are basically distributed on the left side of the population boundary; from the tree species, they are mostly Juniperus przewalskii, Juniperus tibetica, Chamaecyparis obtuse, Cunninghamia lanceolate, Pinus armandii, Tsuga dumosa, Picea likiangensis and Larix sibirica.

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