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| Created: | Nov 19, 2019 at 2:36 a.m. (UTC) | |
| Last updated: | Dec 23, 2019 at 10:42 p.m. (UTC) | |
| Citation: | See how to cite this resource | |
| Content types: | Single File Content |
| Sharing Status: | Public |
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Abstract
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.
Subject Keywords
Coverage
Spatial
Temporal
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Additional Metadata
| Name | Value |
|---|---|
| czos | Shale Hills |
| czo_id | 2654 |
| citation | 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. |
| comments | 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 (cxd11@psu.edu) 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 |
| subtitle | 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) |
| disciplines | Biology / Ecology, Hydrology |
How to Cite
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http://creativecommons.org/licenses/by/4.0/
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