沪杭苏地区若干文化遗址的孢粉—气候对应分析

A STUDY ON THE RELATIONS BETWEEN SPORO POLLEN ASSEMBLAGES AND CLIMATE IN NEW STONE AGE OF CHANGJING DELTA BY CORRESPONDANCE ANALYSIS

运用对应分析方法研究沪、杭、苏地区三个文化遗址孢粉与气候的关系。结果表明，马家浜文化期和崧泽文化期（属全世新大西洋期）比较温暖，年平均温度比今高１～３℃；而良渚文化期（属全新世亚北方期）相对凉爽，年平均温度比今低１．５℃左右。年降水量各地有所不同，但以马家浜期末和崧泽期初最为潮湿，年平均降水量比今高１５０～３００ｍｍ。

Some sporo pollen assemblages from three culture ruins was interpreted by correspondance analysis and the climate feature of Late Stone Age in the Changjiang Delta was revealed. In Majiabang and Songze culture stages, the climate was warmer and the mean annual temperature was 1-3℃ higher than that at present. In Liangzhu culture stages, the climate was cooler and the mean annual temperature was about 1.5℃ lewer than that at present. Precipitation was very different in different stages and areas. In the late Majiabang stage and early Songze stage it was humid and the mean annual precipitation was 150-300 mm higher than that at present.