2024-03-28T15:00:27Zhttp://doidb.wdc-terra.org/oaip/oaioai:doidb.wdc-terra.org:65532018-09-28T10:49:34ZDOIDBDOIDB.GFZ
10.5880/gfz.3.3.2017.002
Schuessler, Jan A.
GFZ German Research Centre for Geosciences, Potsdam, Germany
von Blanckenburg, Friedhelm
0000-0002-2964-717X
GFZ German Research Centre for Geosciences, Potsdam, Germany
Bouchez, Julien
0000-0003-4832-1615
GFZ German Research Centre for Geosciences, Potsdam, Germany; IPGP-CNRS Institut de Physique du Globe de Paris, Paris, France
Hewawasam, Tilak
University of Peradeniya, Department of Geography, Sri Lanka;
Uhlig, David
GFZ German Research Centre for Geosciences, Potsdam, Germany
Supplementary data to: Nutrient cycling in a tropical montane rainforest under a supply-limited weathering regime traced by elemental mass balances and Mg stable isotopes
GFZ Data Services
2018
tropical ecosystems
Mg isotopes
Sr isotopes
nutrient recycling
chemical weathering
Schuessler, Jan A.
GFZ German Research Centre for Geosciences, Potsdam, Germany
von Blanckenburg, Friedhelm
0000-0002-2964-717X
GFZ German Research Centre for Geosciences, Potsdam, Germany
Bouchez, Julien
0000-0003-4832-1615
GFZ German Research Centre for Geosciences, Potsdam, Germany; IPGP-CNRS Institut de Physique du Globe de Paris, Paris, France
Dixon, Jean L.
GFZ German Research Centre for Geosciences, Potsdam, Germany; Montana State University, Department of Earth Sciences, Bozeman, MT, USA
Schlegel, Jutta
GFZ German Research Centre for Geosciences, Potsdam, Germany
Buhk, Josefine
GFZ German Research Centre for Geosciences, Potsdam, Germany
Gottsche, Andrea
GFZ German Research Centre for Geosciences, Potsdam, Germany
Jentzsch, Laura
GFZ German Research Centre for Geosciences, Potsdam, Germany
Floor, Geerke
GFZ German Research Centre for Geosciences, Potsdam, Germany
2017-06-22
en
10.1016/j.gca.2013.05.006
10.1016/j.chemgeo.2018.08.024
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CC BY 4.0
The dataset contains chemical analyses from the well-characterised Hakgala field site in the tropical Highlands of Sri Lanka. This site is located on a road cut between Nuwara Elia and Welimada (06.92923° N, 80.81834° E, 1753 m altitude), bordering a 12 km^2 natural forest reserve consisting of pristine, mature, stable upper montane rain forest, close to the Hakgala Botanical Garden. A deeply weathered regolith depth profile (ca. 10 m) developed on a hillslope underlain by charnockite bedrock. Adjacent to the regolith profile ecologically pristine catchments (>1 km^2) are drained by small creeks.
Here, data on samples of all compartments of the Critical Zone (defined as the near surface layer of the Earth extending from the bottom of the weathering zone to the top of the tree canopy) are reported. The dataset compiles published (Hewawasam et al., 2013, GCA, 118, 202-230) and new data (Schuessler et al., 2018, Chemical Geology) of element concentrations, stable Mg isotopes, and radiogenic Sr isotope ratios on stream water (time series sampling 2010-2013), vegetation, soil, saprolite (depth profile sampling), weathered bedrock (corestones), and unweathered bedrock. From this data, weathering indicators such as the chemical depletion fraction (CDF) and the element mass transfer coefficients (Tau) were calculated and reported in the dataset.
The samples used for these analyses have been assigned with International Geo Sample Numbers (IGSN, www.igsn.org). Details on sampling locations are provided via IGSN links in the tables and in the related work section on the DOI Landing Page at GFZ Data Services. Moreover, the IGSN data can be accessed by adding the IGSN after igsn.org, e.g. igsn.org/GFFB1003V. Further details on sampling and locations are provided in Hewawasam et al. (2013, GCA, 118, 202-230).
This publication contains an annotated summary table serving as a supplementary table for Schuessler et al. (2018, Chemical Geology) in pdf and xlsx (Microsoft Excel) formats. In addition, separate tables reflecting differing samples and methodologies for input into statistical software are provided as comma separated files. Column headers for all tables are explained in a separate csv file (Data columns headers for tables S1 to S3.csv). The analytical methodologies used to generate the data are described in the data description file.
80.81834
6.92923
road cut between Nuwara Elia and Welimada (altitude 1753 m)