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Title: Characterizing Rooting Depth Distribution and Nitrogen Acquisition Using 15N Tracer, Barrow, Alaska, 2013-2015

Abstract

Permafrost thaw and degradation may lead to altered thickness of the active soil layer and a changing distribution of plant-available nutrients throughout the soil, but little is known about the nutrient acquisition strategies of dominant tundra plant species. We conducted an 15N isotope tracer experiment to assess the vertical distribution of nutrient acquisition among three dominant species representing important plant functional types (PFTs) on the Barrow Environmental Observatory (BEO) in Barrow, Alaska. We found that vertical patterns of root distribution and nutrient acquisition varied among plant species, and that root density may not entirely explain patterns of nutrient acquisition for all species. Dataset DOI:http:10.5440/1333932; https://doi.org/10.5440/1333932 This is preliminary metadata with more information and data to come.

Authors:
Publication Date:
Other Number(s):
NGA005
ngee_AE638B80C66411679F8F6C778A25993E2016_12_01_172551133
DOE Contract Number:  
DE-AC05-00OR22725
Research Org.:
Next Generation Ecosystems Experiment - Arctic, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (US); NGEE Arctic, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Collaborations:
ORNL
Subject:
54 Environmental Sciences
Keywords:
soil nitrogen and 15N; 15N acquisition and allocation to leaves, stem, roots by three dominant plant functional types on BEO; Barrow, Alaska
OSTI Identifier:
1333932
DOI:
https://doi.org/10.5440/1333932

Citation Formats

Iversen, Colleen. Characterizing Rooting Depth Distribution and Nitrogen Acquisition Using 15N Tracer, Barrow, Alaska, 2013-2015. United States: N. p., 2016. Web. doi:10.5440/1333932.
Iversen, Colleen. Characterizing Rooting Depth Distribution and Nitrogen Acquisition Using 15N Tracer, Barrow, Alaska, 2013-2015. United States. doi:https://doi.org/10.5440/1333932
Iversen, Colleen. 2016. "Characterizing Rooting Depth Distribution and Nitrogen Acquisition Using 15N Tracer, Barrow, Alaska, 2013-2015". United States. doi:https://doi.org/10.5440/1333932. https://www.osti.gov/servlets/purl/1333932. Pub date:Thu Dec 01 00:00:00 EST 2016
@article{osti_1333932,
title = {Characterizing Rooting Depth Distribution and Nitrogen Acquisition Using 15N Tracer, Barrow, Alaska, 2013-2015},
author = {Iversen, Colleen},
abstractNote = {Permafrost thaw and degradation may lead to altered thickness of the active soil layer and a changing distribution of plant-available nutrients throughout the soil, but little is known about the nutrient acquisition strategies of dominant tundra plant species. We conducted an 15N isotope tracer experiment to assess the vertical distribution of nutrient acquisition among three dominant species representing important plant functional types (PFTs) on the Barrow Environmental Observatory (BEO) in Barrow, Alaska. We found that vertical patterns of root distribution and nutrient acquisition varied among plant species, and that root density may not entirely explain patterns of nutrient acquisition for all species. Dataset DOI:http:10.5440/1333932; https://doi.org/10.5440/1333932 This is preliminary metadata with more information and data to come.},
doi = {10.5440/1333932},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {12}
}