Holoceneδ^18O records from various archives(ice cores,cave stalagmites,and peat sediments)from the Xinjiang region of northwestern China,in arid central Asia(ACA),are all derived ultimately from local precipitationδ...Holoceneδ^18O records from various archives(ice cores,cave stalagmites,and peat sediments)from the Xinjiang region of northwestern China,in arid central Asia(ACA),are all derived ultimately from local precipitationδ^18O(δ^18Op).Nevertheless,they have been proposed as indicators of different climatic parameters,such as wetness and temperature changes.This article summarizes previously reported records of moisture sources for the Xinjiang region and the results of modern observations conducted at an ice core site and a peat site in the Altai Mountains.The findings are used to propose that the overall positive trends in Holoceneδ^18O records from the various archives from the Xinjiang region primarily reflect the Holocene's long-term warming trend.It is concluded that more site-specific modern observations are needed to further elucidate the environmental significance of Holoceneδ^18O records from this region,especially for the separation of different seasonal temperature signals present withinδ^18O records.展开更多
Intensified human activities during the last several thousands of years have been identified globally[1].About 4000 years ago,Chinese Neolithic cultures collapsed and were succeeded by Bronze Age culture[2],which was ...Intensified human activities during the last several thousands of years have been identified globally[1].About 4000 years ago,Chinese Neolithic cultures collapsed and were succeeded by Bronze Age culture[2],which was accompanied by a significant spatial expansion of human activities,as demonstrated by the permanent human occupation of the Tibetan Plateau(TP)since~3600 years ago[3].展开更多
基金We dedicate this paper to the memory of Prof.ZiChu Xie,who passed away in early 2020.Prof.ZiChu Xie was an inspirational mentor and friend.This work was supported by the National Science Foundation of China(41772373,41372181)the Hunan Provincial Natural Science foundation of China(2018JJ1017)+1 种基金the National Key R&D Program of China(2018YFA0606404)and the Construction Program for First-Class Disciplines(Geography)of Hunan Province,China(5010002).We thank Dr.Jan Bloemendal for improving the English language.
文摘Holoceneδ^18O records from various archives(ice cores,cave stalagmites,and peat sediments)from the Xinjiang region of northwestern China,in arid central Asia(ACA),are all derived ultimately from local precipitationδ^18O(δ^18Op).Nevertheless,they have been proposed as indicators of different climatic parameters,such as wetness and temperature changes.This article summarizes previously reported records of moisture sources for the Xinjiang region and the results of modern observations conducted at an ice core site and a peat site in the Altai Mountains.The findings are used to propose that the overall positive trends in Holoceneδ^18O records from the various archives from the Xinjiang region primarily reflect the Holocene's long-term warming trend.It is concluded that more site-specific modern observations are needed to further elucidate the environmental significance of Holoceneδ^18O records from this region,especially for the separation of different seasonal temperature signals present withinδ^18O records.
基金supported by the National Natural Science Foundation of China(41772373 and 42001080)。
文摘Intensified human activities during the last several thousands of years have been identified globally[1].About 4000 years ago,Chinese Neolithic cultures collapsed and were succeeded by Bronze Age culture[2],which was accompanied by a significant spatial expansion of human activities,as demonstrated by the permanent human occupation of the Tibetan Plateau(TP)since~3600 years ago[3].
