摘要
中亚位于亚欧大陆腹地,受西风带、亚洲季风和西伯利亚高压等多种气候系统共同影响,是全球重要的黄土分布区和粉尘源区,也是全球气候变化的敏感区。同时,中亚作为古代丝绸之路的核心地带,在连接东西方文明与促进物资交流中具有重要战略地位。研究该区黄土不仅有助于揭示干旱区气候演化与粉尘搬运机制,也为探讨人类活动与环境变化的关系提供了重要线索。本数据集主要汇集了中国科学院地球环境研究所近十多年来在我国新疆和邻近中亚国家获得的黄土古气候数据和相关年代数据,涵盖中亚西部、北部和东部共64个黄土剖面或钻探点的年代学信息及多种古气候理化生代用指标数据,包括1幅中亚黄土分布图、762个光释光测年数据(包含OSL和pIRIR)、71个AMS14C测年数据、18875条粒度记录、5552条磁化率数据、425组色度数据,以及若干地球化学元素、同位素和矿物组成等信息。本数据集收录的数据均有对应的公开出版物,经过了严格的同行评审。在质量控制与评估上,通过筛选初始数据、剔除无关内容、评估实验方法可靠和结果可信、复核录入数据和实地考察验证等多维度保障数据可靠性。本研究构建了目前中亚地区覆盖范围广、指标体系完整的黄土古气候基础数据库,可为深入研究区域古气候重建、多气候系统相互作用机制,以及量化人类活动对气候变化的响应模式提供关键数据支撑,为丝绸之路沿线环境考古与可持续发展研究提供重要科学依据。
Located in the hinterland of the Eurasian continent,Central Asia(CA)is influenced by various climate systems such as the westerlies,the Asian monsoon,and Siberian high.It is an important loess distribution area and dust source globally,and also a region sensitive to global climate change.Meanwhile,as the core area of the ancient Silk Road,CA holds an important strategic position in connecting Eastern and Western civilizations and facilitating material exchanges.Studying the loess in this area not only helps to reveal climate evolution and dust transport mechanisms in arid regions,but also provides important clues for exploring the relationship between human activities and environmental change.This dataset mainly compiles loess paleoclimate data obtained by the Institute of Earth Environment,Chinese Academy of Sciences in the past ten years and relevant chronological data in Xinjiang and neighboring CA countries,along with corresponding chronological data.It covers 64 loess profiles or drilling sites in western,northern and eastern CA,as well as a variety of paleoclimatic,physicochemical and biogenic index data,including a map of distribution in CA loess,762 optically stimulated luminescence dating records(including OSL and pIRIR),71 AMS 14C dating records,18,875 grain size records,5,552 magnetic susceptibility records,425 of chromaticity data,and various geochemical elements,isotopes and mineral compositions.All the data included in this dataset have corresponding peer-reviewed publications and have undergone rigorous peer review.In quality control and evaluation,data reliability is ensured through multiple steps,including screening the initial data,removing irrelevant content,assessing the reliability of experimental methods and the credibility of results,verifying data entry and conducting field validation.This research has established extensive and comprehensive loess paleoclimate basic database in CA,which can provide key data support for in-depth research on regional paleoclimate reconstruction,multi-climate system interaction mechanisms,and quantifying the response of human activities to climate change.It also provides an important scientific basis for environmental archaeology and sustainable development research along the Silk Road.
作者
周芷冰
宋友桂
李越
魏皓儒
韩丽
程良清
舒培仙
ZHOU Zhibing;SONG Yougui;LI Yue;WEI Haoru;HAN Li;CHENG Liangqing;SHU Peixian(State Key Laboratory of Loess Science,Institute of Earth Environment,Chinese Academy of Sciences,Xi’an 710061,P.R.China;University of Chinese Academy of Sciences,Beijing 100049,P.R.China;Salt Lake Chemical Analyzing and Testing Center,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining 810008,P.R.China;Key Laboratory of Lake and Watershed Science for Water Security,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 211135,P.R.China)
基金
国家自然科学基金(42372220、42472254、42172207、42102237、42102238、42002205、41977385、41572162)
崂山实验室科技创新项目CRESTS项目(LSKJ202203300)
国家重点研发计划(2016YFA0601902)
第二次青藏高原综合科学考察研究(2019QZKK0101)
中国科学院战略性先导科技专项(B类)(XDB26000000、XDB40000000)
中国科学院国际合作重点项目(132B61KYS20160002)
黄土与第四纪地质国家重点实验室开放基金
陕西省青年科技新星项目(2025ZC-KJXX-129)。
关键词
黄土
年代
古气候
粒度
磁化率
中亚
loess
geochronology
paleoclimate
grain size
magnetic susceptibility
Central Asia
