Studies on the Ginkgo at the Jinfoshan Mountain

Jinfoshan Mountain,the haven for the relics of the Tertiary Period,preserves natural primitive community of the wild ginkgo.It is a vast stretches of forest at the beginning of 1940s with over 5 000 plant species.The ground is covered with forest and provies favourable conditions for the reproduction of wild ginkgo.There are over 300 old ginkgoes at the Jinfoshan Mountain which are of hundreds to over one thousand years old.These trees have distinct trunk,high and large crown,generally 20 m high or so,the highest 50 m,the largest crown about 0.13 hm2.There are over 70 huge trees with diameter over 1 m,8 trees with diameter over 2 m.More than 10 trees are over 1 000 years old.There is also an old ginkgoGinkgo Empress which is 2 500 years old,with chest measurement 11.6 m in 1950s.There are still small tracks of natural ginkgo forest.The wild ginkgo has varied types and contains rich genes.These ginkgoes grow on the mountain at about 470~1 520 m above sea level,mostly 800~1 300 m.