Chemistry of soil water collected from 2006-2010 at four transects in the Susquehanna Shale Hills Critical Zone Observatory. Two transects were located on the Northern (N) side of the catchment while the additional two transects were located on the Southern (S) side. Each portion of the catchment then contained a Planar (P) hillslope and a Swale (S) depression transect. Three different topographic sites were sampled within each transect, the most elevated site was located at the Ridge Top (RT) followed by the Mid Slope (MS) and lowest site at the Valley Floor (VF). As the lysimeters were installed to the depth of auguring refusal, first lysimeters was installed at a depth 10 cm with subsequent lysimeters installed every 10 cm.
Annual datasets have been registered with the EarthChem Library and assigned dataset DOI’s. Please reference the associated DOI for any research derived from this data.
Soil water was collected using nested-suction lysimeters (Soil water samplers, 1900 series, SoilMoisture Equipment Corp., Santa Barbara, CA) that collected soil water 10 cm depth increments. All lysimeters were suctioned to 50 k Pa one week prior to sampling. Soil was collected from each lysimeters using PVC tubing and syringe. When possible, four unfiltered soil water samples were collected at each lysimeters. Two samples were collected in screw top Nalgene bottles for anion and cations. The additional two samples were collected in glass bottle and analyzed for dissolved organic carbon (DOC) and oxygen and hydrogen stable isotopes. Cations and DOC samples were acidified in the laboratory with nitric and hydrochloric acids, respectively.
Major cations and silica were analyzed on an inductively coupled plasma–optical emission spectrometer (ICP– OES), while major anions were measured on the Dionex Ion Chromatograph (Sunnyvale, CA). DOC was analyzed using a Shimadzu TOC-5000A analyzer (Shimadzu Scientific Instruments, Columbia, MD). Oxygen and hydrogen stable isotopes were analyzed ion the DLT-100 liquid water stable analyzer (Los Gatos Research, Mountain View, CA).
soil water chemistry, anions, cations, dissolved organic carbon (DOC), oxygen and hydrogen stable isotopes
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Citation for This Dataset
The following acknowledgment should accompany any publication or citation of these data: Logistical support and/or data were provided by the NSF-supported Shale Hills Susquehanna Critical Zone Observatory.
Citation for This Webpage
Brantley, Susan L.; Duffy, Christopher J. (2011). "CZO Dataset: Shale Hills - Soil Porewater Chemistry (2006-2011)." Retrieved 18 Apr 2019, from http://criticalzone.org/national/data/dataset/2580/
Opening the "Black Box": Water Chemistry Reveals Hydrological Controls on Weathering in the Susquehanna Shale Hills Critical Zone Observatory . Jin, L., Andrews, D.M., Holmes, G.H., Lin, H., and Brantley, S.L. (2011): Vadose Zone Journal 10:928-942,
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