noaa-lake-21830 Zhuye Lake, China Holocene Grain Size and Pollen Data Li, Y.; Wang, N.; Cheng, H.; Long, H.; Zhao, Q. Zhuye Lake, China Holocene Grain Size and Pollen Data 2017-03-14 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/21830 Investigator Y. Li Investigator N. Wang Investigator H. Cheng Investigator H. Long Investigator Q. Zhao earth science paleoclimate paleolimnology grain size mode,sediment,null,micrometer,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology delta 13C,sediment,null,per mil PDB,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology grain size standard deviation,sediment,null,micrometer,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology nitrogen,sediment,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology carbon/nitrogen,sediment,null,dimensionless,null,paleolimnology,null,null,N,total organic carbon/total organic nitrogen earth science paleoclimate paleolimnology depth,null,null,centimeter,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology grain size mean,sediment,null,micrometer,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology clay,sediment,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology silt,sediment,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology sand,sediment,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology sample identification,null,null,null,null,paleolimnology,null,null,C,null earth science paleoclimate paleolimnology grain size median,sediment,null,micrometer,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology organic carbon,sediment,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology grain size class,sediment,null,dimensionless,null,paleolimnology,null,null,N,(Silt sand + clay)/sand earth science paleoclimate paleolimnology grain size skewness,sediment,null,dimensionless,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology calcium carbonate,sediment,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology grain size kurtosis,sediment,null,dimensionless,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology age,null,null,calendar year before present,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology population abundance earth science paleoclimate paleolimnology physical properties earth science paleoclimate paleolimnology geochemistry geoscientificInformation Monsoon 13090 cal yr BP 14 cal yr BP Complete 39.05 39.05 103.6689 103.6689 1309 1309 Continent Asia Eastern Asia China Zhuye Lake>LATITUDE 39.05>LONGITUDE 103.6689 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Yu Li, Nai'ang Wang, Hongyi Cheng, Hao Long, Qiang Zhao 2009 Boreas 38 2 349-361 10.1111/j.1502-3885.2008.00063.x http://onlinelibrary.wiley.com/doi/10.1111/j.1502-3885.2008.00063.x/full

This article examines Holocene environmental change in Zhuye Lake in the marginal area of the Asian monsoon, NW China. Holocene environment records were obtained for the QTH01 and QTH02 sections in Zhuye Lake. The fluctuations in grain size, pollen, total organic carbon content and C/N ratios record notable environmental variation. The early Holocene (11.0 to 7.4 cal. kyr BP) was relatively arid, while vegetation coverage was sparse and primary productivity low. The optimal environment prevailed during the mid-Holocene (7.4 to 4.7 cal. kyr BP). Vegetation coverage was the densest and primary productivity the highest during the mid-Holocene. During the late Holocene (4.7 to 0 cal. kyr BP), the environment became arid, as shown by low lake level and sparse vegetation coverage. After 1.6 cal. kyr BP another strong aridification occurred. In this area, the environment was likely to have been influenced by both the Westerlies and the East Asian monsoon during the Holocene. During the early Holocene, the relatively arid environment lay in the background of the increasing East Asian monsoon and dry westerly wind. During the mid-Holocene, central Asia was controlled by the humid Westerlies, while a strong East Asian monsoon prevailed in Central China. The mid-Holocene optimum in this area benefited from an expanded East Asian monsoon and the humid Westerlies. Weakening of the East Asian monsoon caused aridification of the environment during the late Holocene. Intensification of this aridification after 1.6 cal. kyr BP might be correlated with appearance of the arid environments in the Westerly domain after ~1.5 cal. kyr BP. These arid conditions might be affected by the decreased moisture content of the Westerlies. STUDY NOTES: Pollen assemblages and grain-size data from two Holocene sections collected in Zhuye Lake, north-west China.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/china/zhuye2009bqth02gs.txt Formatted Text Data File; Zhuye Lake QTH02 Section Grain Size and Geochemical Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/china/zhuye2009bpollenpct.txt Formatted Text Data File; Zhuye Lake QTH02 Section Pollen Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/china/zhuye2009bqth01gs.txt Formatted Text Data File; Zhuye Lake QTH01 Section Grain Size and Geochemical Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11