莆田海岸近4000年来的变迁与气候的关系

Relation between coast-change and climate over past 4000a,B,P,in Putian,Fujian

本文根据作者多年的实地考察,并参考了有关文献,研究了莆田海岸近4 000年来的变迁与气候的关系。结果表明,4 000a,B.P.莆田岸线大约沿海拔5～6m一线分布,当时气温比现今高2℃;2 570a,B.P.莆田岸线约沿海拔4m 一线分布,当时气温比现今高1℃;1 400a,B.P.以来,莆田气候冷暖交替出现,海平面基本上也随之升降而升降。

According to multi-year field investigations of the coastline in Putian,Fujian,China,and mak-ing reference to relevant data fries of coast-change and ancient climate the authors,by means of scien-tific expounding and proving,have come to such a conclusion that in Putian,there's a close relationbetween coast-change and the climate.The results show that the air temperature was 2℃ higher in4 000a,B.P.than it is now along the coastline with an elevation of about 5～6m,and 1℃ higher in2 570a,B.P.with an elevation 4m or so.In Putian,on the whole,the sea level has been rising orfalling with the fluctuation of air temperature,though,over the past 1 400a,B.P.,Changes in tem-perature have taken place alternately.