Sapflow and xylem water isotopes from Snodgrass Mountain, East River Watershed, Colorado USA

Berkelhammer, Max

doi:10.15485/1647654

Title: Sapflow and xylem water isotopes from Snodgrass Mountain, East River Watershed, Colorado USA

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Abstract

This dataset includes sapflux and stable water isotopes of soil water and xylem water for aspen, fir and spruce trees along the Snodgrass Mountain transect in the East River Watershed, Colorado USA. The purpose of generating this dataset was to understand: (1) the total flux of water being used by trees in the watershed, (2) separate the component of transpiration that was derived from recent precipitation vs. older water such as winter precipitation of groundwater and (3) understand how total water use and water sources for the trees varies between species and position on a hillslope. The data were collected from May 2019 until October 2022. The sap flux data were collected using ICT SFM1 sensors and are presented in both units of cm h^-1 and as kg h^-1 by multiplying the sap flux by the sapwood area of the tree. All sap flow data has been been corrected using estimates of wounding diameter, water content of wood and sap wood depth. The xylem water isotope data were collected approximately weekly from each of the trees instrumented with sap flux. The stems were collected and the water extracted using classic cryogenic methods. Isotope measurements were done using a Picarro 2140imore »« less

Authors:

University of Illinois at Chicago; University of Illinois at Chicago

Publication Date:: Thu Jan 19 23:00:00 EST 2023

Research Org.:: Environmental System Science Data Infrastructure for a Virtual Ecosystem; Space and time dynamics of transpiration in the East River watershed: biotic and abiotic controls

Sponsoring Org.:: U.S. DOE BER

Subject:: 54 ENVIRONMENTAL SCIENCES; Ecohydrology; Sap flux; Sapflux velocity; Subsurface hydrology; Transpiration; Vadoze zone; Water isotope ratios; Water isotopes

OSTI Identifier:: 1647654

DOI:: https://doi.org/10.15485/1647654

Citation Formats


                    Berkelhammer, Max. Sapflow and xylem water isotopes from Snodgrass Mountain, East River Watershed, Colorado USA.  United States: N. p., 2023. 
        Web.  doi:10.15485/1647654.

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                    Berkelhammer, Max. Sapflow and xylem water isotopes from Snodgrass Mountain, East River Watershed, Colorado USA.  United States.  doi:https://doi.org/10.15485/1647654

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                    Berkelhammer, Max. 2023.  
"Sapflow and xylem water isotopes from Snodgrass Mountain, East River Watershed, Colorado USA".  United States.  doi:https://doi.org/10.15485/1647654.  https://www.osti.gov/servlets/purl/1647654. Pub date:Thu Jan 19 23:00:00 EST 2023

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@article{osti_1647654,

  title        = {Sapflow and xylem water isotopes from Snodgrass Mountain, East River Watershed, Colorado USA},

  author       = {Berkelhammer, Max},

  abstractNote = {This dataset includes sapflux and stable water isotopes of soil water and xylem water for aspen, fir and spruce trees along the Snodgrass Mountain transect in the East River Watershed, Colorado USA. The purpose of generating this dataset was to understand: (1) the total flux of water being used by trees in the watershed, (2) separate the component of transpiration that was derived from recent precipitation vs. older water such as winter precipitation of groundwater and (3) understand how total water use and water sources for the trees varies between species and position on a hillslope. The data were collected from May 2019 until October 2022. The sap flux data were collected using ICT SFM1 sensors and are presented in both units of cm h^-1 and as kg h^-1 by multiplying the sap flux by the sapwood area of the tree. All sap flow data has been been corrected using estimates of wounding diameter, water content of wood and sap wood depth. The xylem water isotope data were collected approximately weekly from each of the trees instrumented with sap flux. The stems were collected and the water extracted using classic cryogenic methods. Isotope measurements were done using a Picarro 2140i analyzer. We provide an estimate of the Seasonal Origin Index for each measurements following Allen et al., 2019 (10.5194/hess-23-1199-2019) where values of -1 equate to trees relying on winter precipitation and +1 tree relying on summer precipitation. We also provide the simultaneous sap flux for each isotope measurement when this data was available. This is an update to an earlier data repository with the same name that only included 2019 data. The new dataset was posted in January 2023 and is inclusive of the original 2019 data but now includes 2021 and 2022 data. Please note there was an error in the units of transpiration in the original dataset. It was incorrectly listed as mm h-1 when it should have been kg h-1. This change was made in May 2024.},

  doi          = {10.15485/1647654},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Jan 19 23:00:00 EST 2023},

  month        = {Thu Jan 19 23:00:00 EST 2023}

}

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DOI: https://doi.org/10.15485/1647654

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