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Title: Walker Branch Watershed: Effect of Dual Nitrogen and Phosphorus Additions on Nutrient Uptake and Saturation Kinetics, 2011-2012

Abstract

This data set reports the results of field experiments investigating the effect of dual nutrient (nitrogen and phosphorus) additions on nutrient uptake and saturation kinetics in the West Fork of Walker Branch Watershed, a forested headwater stream on the Oak Ridge Reservation in east Tennessee. The experiments were carried out in the autumn of 2011 and spring of 2012 to examine seasonality in nutrient dynamics. The nutrient limitation status (N-limited, P-limited, co-limited for N and P, or neither N- nor P-limited) of Walker Branch was examined using nutrient diffusing substrata (NDS) in both autumn and spring. Next, a combination of instantaneous and steady-state nutrient releases were used to examine the effect of dual N and P releases on nutrient dynamics and saturation kinetics. Lastly, because the nutrient release results from autumn suggested a strong role of P sorption in P dynamics, laboratory assays were carried out in spring to quantify the importance of P sorption to sediments in Walker Branch.

Creator(s)/Author(s):
ORCiD logo ; ORCiD logo
Publication Date:
DOE Contract Number:  
AC05-00OR227
Product Type:
Dataset
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23). Climate and Environmental Sciences Division
Subject:
54 ENVIRONMENTAL SCIENCES
Keywords:
nitrate, phosphate, uptake length, maximum areal uptake rate, Tracer Additions for Spiraling Curve Characterization, steady-state addition, adsorption, coupled biogeochemical cycles, ORNL TES SFA, U.S. DOE Office of Science, U.S. DOE Program for Terrestrial Ecosystem Science
OSTI Identifier:
1484490
DOI:
10.25581/ornlsfa.015/1484490

Citation Formats

Griffiths, Natalie A, and Johnson, Laura T. Walker Branch Watershed: Effect of Dual Nitrogen and Phosphorus Additions on Nutrient Uptake and Saturation Kinetics, 2011-2012. United States: N. p., 2018. Web. doi:10.25581/ornlsfa.015/1484490.
Griffiths, Natalie A, & Johnson, Laura T. Walker Branch Watershed: Effect of Dual Nitrogen and Phosphorus Additions on Nutrient Uptake and Saturation Kinetics, 2011-2012. United States. doi:10.25581/ornlsfa.015/1484490.
Griffiths, Natalie A, and Johnson, Laura T. 2018. "Walker Branch Watershed: Effect of Dual Nitrogen and Phosphorus Additions on Nutrient Uptake and Saturation Kinetics, 2011-2012". United States. doi:10.25581/ornlsfa.015/1484490. https://www.osti.gov/servlets/purl/1484490. Pub date:Mon Jan 01 00:00:00 EST 2018
@article{osti_1484490,
title = {Walker Branch Watershed: Effect of Dual Nitrogen and Phosphorus Additions on Nutrient Uptake and Saturation Kinetics, 2011-2012},
author = {Griffiths, Natalie A and Johnson, Laura T},
abstractNote = {This data set reports the results of field experiments investigating the effect of dual nutrient (nitrogen and phosphorus) additions on nutrient uptake and saturation kinetics in the West Fork of Walker Branch Watershed, a forested headwater stream on the Oak Ridge Reservation in east Tennessee. The experiments were carried out in the autumn of 2011 and spring of 2012 to examine seasonality in nutrient dynamics. The nutrient limitation status (N-limited, P-limited, co-limited for N and P, or neither N- nor P-limited) of Walker Branch was examined using nutrient diffusing substrata (NDS) in both autumn and spring. Next, a combination of instantaneous and steady-state nutrient releases were used to examine the effect of dual N and P releases on nutrient dynamics and saturation kinetics. Lastly, because the nutrient release results from autumn suggested a strong role of P sorption in P dynamics, laboratory assays were carried out in spring to quantify the importance of P sorption to sediments in Walker Branch.},
doi = {10.25581/ornlsfa.015/1484490},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {1}
}

Works referenced in this record:

Organic-matter decomposition along a temperature gradient in a forested headwater stream
journal, June 2016

  • Griffiths, Natalie A.; Tiegs, Scott D.
  • Freshwater Science, Vol. 35, Issue 2
  • DOI: 10.1086/685657

Influence of dual nitrogen and phosphorus additions on nutrient uptake and saturation kinetics in a forested headwater stream
journal, December 2018

  • Griffiths, Natalie A.; Johnson, Laura T.
  • Freshwater Science, Vol. 37, Issue 4
  • DOI: 10.1086/700700

    Works referencing / citing this record:

    Organic-matter decomposition along a temperature gradient in a forested headwater stream
    journal, June 2016

    • Griffiths, Natalie A.; Tiegs, Scott D.
    • Freshwater Science, Vol. 35, Issue 2
    • DOI: 10.1086/685657

    Influence of dual nitrogen and phosphorus additions on nutrient uptake and saturation kinetics in a forested headwater stream
    journal, December 2018

    • Griffiths, Natalie A.; Johnson, Laura T.
    • Freshwater Science, Vol. 37, Issue 4
    • DOI: 10.1086/700700