Dataset Listing

Shale Hills - Vegetation, Stable Isotopes (2012)

Level 1 - Quality Controlled Data

Variables:  Tower Number, Tree ID, Tree Group, Sapflux ID, Tree species, Diameter at Breast Height (cm), Circumference (cm), X Coordinate, Y Coordinate, Deuterium Mass (g), Injected Deuterium Mass (g), Data Logger ID A Port, Data Logger ID B Port, Injection Date, Injection Start Time, Injection Finish Time, Sap Flux Time, Record ID Number for Sap Flux Datalogger, Battery Voltage, diff1_Avg(1) Differential (degrees C), Sample Number, Sampling Date. Tree ID, Species Name, δ2H Reportable Value (permil), δ2H Standard Deviation (permil), δ18O Reportable Value (permil), δ18O Standard Deviation (permil)

Standard Variables:  delta-18O of H2O|Deuterium|Battery voltage|Circumference|Diameter at breast height (DBH)|Temperature|Recorder code|Sap flow|Species|Longitude|Latitude

Date Range:  (2012-2012)

Dataset Creators/Authors:  Gaines, Katie; Eissenstat, David M.

Contact:  Katie Gaines,; David Eissenstat,

Field Area:   Susquehanna Shale Hills Critical Zone Observatory

Keywords & XML
  • Description

    Water residence time of ridge-top trees was studied using the deuterium tracer technique combined with sap flow in 2012. Trees were injected with deuterium tracer and the tracer was measured in leaf condensate on subsequent days. Leaves were sampled regularly by climbing trees and 50 foot tall scaffolding.
    Leaves were placed in sealed plastic bags under lamps in greenhouse upon returning to the lab each day and condensate was removed from bags and stored in sealed vials. Condensate was run on a Los Gatos water isotopic analyzer in the lab of Christopher Duffy ( Fixed depth sap flow probes were used (2 pairs in each tree) and sap flow was monitored from April to November.
  • Keywords

    ecohydrology, vegetation, isotopes, tracer, tree water, deuterium, residence time, transit time

    XML Metadata

    XML is in ISO-19115 geographic metadata format, compatible with ESRI Geoportal Server.

  • 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

    Gaines, Katie; Eissenstat, David M. (2012). "CZO Dataset: Shale Hills - Vegetation, Stable Isotopes (2012)." Retrieved 25 Feb 2020, from


Shale Hills - Tree Tracer Study - 2012

(.xls)   Data Level 1,  Metadata

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Data Sharing Policy
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