摘要
１１０００年以来太湖的形成与演变ＷｉｌｌｉａｍＹ．Ｂ．Ｃｈａｎｇ（ＣｅｎｔｅｒｆｏｒＧｒｅａｔＬａｋｅｓａｎｄＡｑｕａｔｉｃＳｃｉｅｎｃｅａｎｄＳｃｈｏｏｌｏｆＮａｔｕｒａｌＲｅｓｏｕｒｃｅｓａｎｄＥｎｖｉｒｏｎｍｅｎｔ，ｔｈｅＵｎｉｖｅｒｓｉｔｙｏ...
Taihu Lake is the third largest freshwater lake in China.This lake and its basin archistorically important areas in Chinese trade, politics 9 agriculture and culture.Taihu Lakecurrently serves more than 33 million people in this area for drinking water,flood control,shipping,waste disposal,fishing,aquaculture and farming.This lake has evolved throughhistory,interacting with its surrounding environment and regional climate.llccausc thisarea leads in China's modernization effort and serves as an industrial center,it is critical tounderstand how such a large freshwater environment evolves through time,its origin,kcymechanisms resulting in the changes,and potential major changes in the future.Much of lake history is stored in sediments,which physically reflects the scqucncc ofnatural occurrences.A coordinated effort was made in 1991 between the scientists of theNaming institute of Geology and Palaeontology and the University of Michigan to conducta study of the origin and changes of Taihu Lake in order to address scientific questions regarding this region. This four year(1991-1994 )study has greatly improved our understanding of the origin and key physical changes in Taihu Lake,thc timing of transgressionin the Yangtzc River Delta, major climate and vegetation changes during the last 11 000years,the relationships of ENSO activities and major climate events in the delta and the nature of recent impacts due to increased anthropogenlc input. These findings arc included inthe nine articles in this volume and one paper entitled 11 Evolution in Taihu l.akcecosysytems as the evidence of changes in sediment profiles' in the 1994 issue of the Journal of Lake Sciences. The sampling methods and locations common to all papers presentedin this volume are described in this article,which also relates the results of l'C dating,sediment chronology,date interpretation and lake sedimentation rates during its six thousandyear history.The success of this project is due not only to the scientists involved in this study,butalso to the institutional spdnsors which supported this effort. We appreciate the unwavcr-lug support from the institute of Geology and Palacontology,thc Chinese Academy of Science, the University of Michigan, and the U.S.Environmental Protection Agency(CR817589 ).We also acknowledge the assistance of the Naming institute of Geography andLimnology in sample collections,and thank the University of Arizona,Beijing University,Naming University and the University of Minnesota for their assistance in sediment dating. The efforts of Dr.Jinyong Yang in carrying out the phytoplankton counting and initialproject logistics arc gratefully acknowledged.
出处
《古生物学报》
CAS
CSCD
北大核心
1996年第2期129-135,共7页
Acta Palaeontologica Sinica
