怎样界定古树名木报刊上常见“古树名木”一词，不少同志也问：“古树名木”有没有具体解释？（１）古树。我国环保部门规定，一般树只要生长百年以上，都叫“古树”。北京市规定：柏树类、白皮松类、胸径６０厘米以上的七叶树、胸径７０厘米以上的油松、胸径１００厘米以... How to define old and famous woods Newspaper common “old trees”, many comrades also asked: “Old trees” Have no specific explanation? (1) old trees. China’s environmental protection department provides that as long as the general growth of a tree more than a century, are called “old trees.” Beijing regulations: Cypress, Pinus bungeana, chestnut diameter of more than 60 centimeters chestnut, diameter 70 cm above the pine, diameter 100 cm to ...