# Nanwan and Son Tra Island Coral Ba/Ca, d138/134Ba and d137/134Ba Data from 1978 to 2004 CE #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. # If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with '#' followed by a space # Data lines have no '#' # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/37452 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-coral-37452.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Corals and Sclerosponges # # Dataset_DOI: 10.25921/7zq6-sr96 # # Science_Keywords: Other Reconstruction #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/coral/south_china_sea/li2023/li2023-st0506_si.txt # Data_Download_Description: NOAA Template File; d138/134Ba and d137/134Ba Data # #--------------------------------------- # Contribution_Date # Date: 2023-02-17 #--------------------------------------- # File_Last_Modified_Date # Date: 2023-04-12 #--------------------------------------- # Title # Study_Name: Nanwan and Son Tra Island Coral Ba/Ca, d138/134Ba and d137/134Ba Data from 1978 to 2004 CE #--------------------------------------- # Investigators # Investigators: Li, Xiaohua #--------------------------------------- # Description_Notes_and_Keywords # Description: # Provided Keywords: Nanwan, Son Tra Island, Porites coral, Ba/Ca, d138/134Ba #--------------------------------------- # Publication # Authors: Xiaohua Li, Zhen Zeng, Yi Liu, Chuan-Chou Shen, Ruoyu Sun, Ching-Chih Chang, Weidong Sun, Hui-Min Yu, Fang Huang, Chung-Che Wu, Tsai-Luen Yu, Chun-Yuan Huang, Hong-Wei Chiang # Published_Date_or_Year: 2023-03-01 # Published_Title: Coral record of increased soil erosion since East and Southeast Asia economic boom # Journal_Name: Journal of Geophysical Research: Oceans # Volume: 128 # Edition: # Issue: 3 # Pages: # Report_Number: e2022JC019397 # DOI: 10.1029/2022JC019397 # Online_Resource: # Full_Citation: # Abstract: Soil erosion in East and Southeast Asia is believed to have increased significantly since the regional economic boom of the 1970s–1980s. However, records of soil erosion are limited, making it difficult to understand and indeed verify such changes. Here we present two new monthly resolved Ba/Ca records from Porites coral skeletons from southern Taiwan and central Vietnam, supplemented with some sporadic monthly and annually resolved coral d138/134Ba data. Our records span the 1980s to the 2000s and suggest that there were intervals of elevated seawater Ba concentrations (Basw) during the intervals 1987–1995 in southern Taiwan and 1992–2001 in central Vietnam. In combination with evidence for insignificant changes in regional seawater d138/134Ba values, model simulations, and other published coral Ba/Ca records from Lanyu (offshore southeast Taiwan) and Hainan, we infer that the intervals of high Basw values are linked to soil erosion associated with land-use changes and socio-economic developments. The increased sediment loads are also likely responsible for the recent degradation of regional coral reefs. Our study provides new insights into regional soil erosion histories, which may prove useful for guiding soil conservation and sustainable land management. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation of China # Grant: 41903003, 41922019, 441572148 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Strategic Priority Research Program of the Chinese Academy of Sciences # Grant: XDB42010403 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Shandong Provincial Natural Science Foundation # Grant: ZR2020JQ18 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Chinese Academy of Sciences (CAS) Interdisciplinary Innovation Team # Grant: JCTD-2020-12 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science and Technology Council # Grant: 111-2116-M-002-022-MY3 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Taiwan University # Grant: 112L894202 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Higher Education Sprout Project of the Ministry of Education # Grant: 111L901001 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Marie Curie Fellowship # Grant: 891710, 891710 #--------------------------------------- # Site_Information # Site_Name: Son Tra Island # Location: Vietnam # Northernmost_Latitude: 16.22 # Southernmost_Latitude: 16.22 # Easternmost_Longitude: 108.2 # Westernmost_Longitude: 108.2 # Elevation_m: -4 #--------------------------------------- # Data_Collection # Collection_Name: ST0506_SI # First_Year: 1978 # Last_Year: 2003 # Time_Unit: year Common Era # Core_Length_m: # Parameter_Keywords: chemistry # Notes: #--------------------------------------- # Chronology_Information # Chronology: #--------------------------------------- # Variables # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## Year age,,,year Common Era,,Corals and Sclerosponges,,,N, ## d137_134Ba delta 137/134Ba,Porites sp.,,per mil NIST SRM 3104a,,Corals and Sclerosponges,,,N, ## 2SD delta 137/134Ba,Porites sp.,two standard deviations,per mil,,Corals and Sclerosponges,,,N, 2 standard deviations of n repeated measurements for d137/134Ba ## d138_134Ba delta 138/134Ba,Porites sp.,,per mil NIST SRM 3104a,,Corals and Sclerosponges,,,N, ## n notes,,,count,,Corals and Sclerosponges,,,N,n is the number of repeated measurements for d137/134Ba of the same solution #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: NA Year d137_134Ba 2SD d138_134Ba n 1983 0.12 0.03 0.16 2 1984 0.052 0.02 0.07 2 1985 0.092 0.06 0.12 2 1995 0.058 0.01 0.08 2 1996 0.021 0.07 0.03 2 1997 0.071 0.01 0.09 2