Characteristics of Ancient Tree Resources in National Key Protected Plants of Huaihua City in Hunan Province
In order to find out the ancient tree resources in the list of national key protected plants in Huaihua City,the research was conducted on the types,endangered levels,and altitude distribution of key protected ancient trees.The results showed that there were 17 species and 2 018 ancient trees under national key protection in Huaihua City,belonging to 14 genera and 13 families,which distributed in all 13 county-level administrative units in the city.The main ancient tree species were Ginkgo biloba,Taxus wal-lichiana,Phoebe bournei and Zelkova schneideriana,each of which had more than 200 trees.The average DBH of old trees was 76.4 cm,the average height was 19.3 m,and the average age was 227 a.The alti-tude range suitable for the growth of ancient trees was 300-800 meters.The results provided reference for biodiversity conservation and afforestation tree species selection in Huaihua City.
Huaihua Citynational key protected wild plantsancient trees groupsancient and famous treesrare and endangered level
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