我国是世界树种最多的国家之一。年龄最大的树是山东莒县定林寺的银杏树,据说已有3000多岁。最粗的树是西藏称做通麦栋的树,直径达8米多。最重的树是云南西双版纳的铁力木,木质坚硬,水中不浮。最贵的树是云南西双版纳生长的柚木树,木材不生虫,不变形,不干裂。 Our country is one of the countries with the largest tree species in the world. The oldest tree is a ginkgo tree in Dinglin Temple, Juxian County, Shandong Province. It is said that more than 3000 years old. The thickest is the tree in Tibet called Tong Mai Dong, a diameter of more than 8 meters. The heaviest tree in Yunnan Xishuangbanna iron wood, hard wood, the water does not float. The most expensive tree is the teak that grows in Xishuangbanna of Yunnan, the timber is not worms, does not deform, do not crack.