中国海洋湖沼学报(英文版)
中國海洋湖沼學報(英文版)
중국해양호소학보(영문판)
Chinese Journal of OCEANOLOGY and LIMNOLOGY
2004年
2期
124-129
,共6页
沈吉%张恩楼%羊向东%Ryo Matsumoto
瀋吉%張恩樓%羊嚮東%Ryo Matsumoto
침길%장은루%양향동%Ryo Matsumoto
organic carbon isotope%paleoclimate%Dabusu Lake
Study on the organic compounds and stable isotope composition of a sediment section in Dabusu Lake revealed that the organic materials in the sediments came mainly from terrestrial plants brought into the lake by runoff. The δ13C of the organic materials had high values during warm-dry climatic stages and decreased in cold-wet stages. Analysis of data on carbonate content and 14 C age showed that the lake basin had experienced several wet-cold and warm-dry climatic cycles since 15000 a BP. Since 6700 a BP, the climate reached a relatively stable warm-dry stage, so that the lake water was gradually condensed and finally a saline lake was formed.
