圩墩遗址古木研究

通过对圩墩遗址出土古木１５个树种的鉴定，确定五，六千年前圩墩存在过落叶－常绿阔叶混交林带。该林带是温带针，阔叶混交林带与亚热带常绿阔叶林带之间的过渡区，属温暖，湿润的亚热带植被类型。落叶阔叶树有壳斗科的麻栋和槲栎类，金缕梅科的枫香，漆树科的黄连木及豆的黄檀等树种。常绿阔叶树有茶科的荷木，豆科的红豆树及木犀科的蜡树等树种。

A RESEARCH ON ANCIENT WOOD IN XUDUN RUINS

it was affirmed that there were mixed forest zone of deciduous species and evergreen broadleaved tress in Xudun area five to six thousand years ago, through the appraisal of 15 species unearthed in Xudun Ruins.It was the transition area between mixed forest zone of temperate-zoneconifer and broad-leaved trees and subtropical zone-evergreen broad-leaved trees belong to temperateand wet subtropical vegetation.There were Quercus acutissima and Quercus aliena of Fagaceae, Liquidambar formosana of Hamamelidaceae,Pistacia chinensis of Anacardiaceae,Dalbergia hupeana of Leguminosae etc. which are part of deciduous broad-leaved trees.There are Schima superba of Theaceae,Orhsieiof Leguminosae, Ligustrum lucidum of Oleaceae,belonging to evergreen broad-leaved trees.