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《Scientia Geographica Sinica》 2006-03
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Overview on Studies of Medieval Warm Period in China

GAO Jian-Hui,LIU Jian,WANG Su-Min(Key Laboratory of Lake Sedimentation and Environment,Chinese Acadeymy of Sciences,Nanjing,Jiangsu 210008)  
The Medieval Warm Period(MWP) is one of the most important climate events happened in the last two millennia.The research work has been carried out mainly by using various proxy records to reconstruct climate.Now the high-resolution proxy records that can reveal environment change are ice core,tree-ring,historical documents,lake sediment and stalagmite,etc.With the development of proxy data,many achievements have been obtained on the MWP climate reconstruction.However,some questions,such as whether the MWP is a global phenomenon,what are the temperature anomalies and the climatic characteristics in the MWP,what are the causes of the MWP,and so on,still have some arguments because of the regional restriction of the reconstructed datasets,different sensitivities of proxies to climate change and different climatic and environmental significances.Moreover,there are errors in dating of reconstruction.In China,based on the results of analyzing reconstruction data,we find the opinions of researchers on "is there MWP in china?"are not consistent.And on the question of the changes of temperature in the MWP,we find the proxy records in the eastern China mainly are historical documents,while the proxy records in the western China mainly are ice core,tree-ring,etc.,because of the absence of records on historical climate records in the western China.Most researchers agree that there are distinct differences of temperature change between the eastern and western China.The most importance is that there was a distinct warm period in the eastern China during 900-1300AD,and the warm record in the western China was not obvious in same episode.For the future,in order to fully understand the characteristic of the MWP climate from viewpoint of dynamics,we should strengthen the research on accumulation and ration of high-resolution proxy records,integration of various proxy records and reconstruction sequences,and comparison study between paleoclimate simulation and reconstructed results.
【Fund】: 国家自然科学基金项目(40475035 40272123);; 中国科学院知识创新工程项目(KZCX3-SW-321)共同资助
【CateGory Index】: P532
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