Hi, I'm an error. x

Differential effects of biomass burning on carbon and nutrient dynamics in Arctic fluvial ecosystems


Authors: Bianca Rodriguez-Cardona Ashley A. Coble Adam Wymore Roman Kolosov David C. Podgorski Phoebe Zito Robert G.M. Spencer Anatoly S. Prokushkin William McDowell
Owners:
Resource type: Composite Resource
Storage: The size of this resource is 11.2 KB
Created: Jun 15, 2018 at 4:54 p.m.
Last updated: Jun 15, 2018 at 6:03 p.m.
DOI: 10.4211/hs.5af38c0096014e3c96adecb92bc6e26d
Citation: See how to cite this resource
Content types: Single File Content 
Sharing Status: Published
Views: 185
Downloads: 9
+1 Votes: Be the first one to  +1 this.  (You need to be logged in to rate this.)
Comments: No comments (yet)

Abstract

The Central Siberia Plateau (CSP) is undergoing rapid climate change resulting in increasing frequency of forest fires, which have uncertain effects on organic matter and nutrient delivery from headwater streams to downstream ecosystems. Across a fire chronosequence (3 to >100 years) underlain by continuous permafrost, we quantified the effects of wildfire on quantity and quality of dissolved organic matter (DOM) and inorganic nutrients in streams. Wildfire decreased DOM concentrations for about 50 years, but elevated nitrate (NO3-) concentrations lasted only 10 years; ammonium and phosphate concentrations were unchanged. This increase in NO3- and decrease in dissolved organic carbon (DOC) results in a wide range of DOC:NO3-, a ratio that is known to regulate NO3- uptake and denitrification in streams. Ultrahigh-resolution mass spectrometry and DOM optical properties showed that the composition of stream DOM changes after fire, with decreased abundance of polyphenols and aliphatic forms of DOM that are typically more biolabile than other forms of OM. Increasing wildfire frequency is thus likely to have major shifts in the metabolism, carbon flux, and nutrient balance of Arctic fluvial systems.

Subject Keywords

  • No subject keywords have been added.
  • ${ k }

Duplicate. Keyword not added.

Error: ${ error }
Deleting all keywords will set the resource sharing status to private.

Resource Level Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Tura, Krasnoyarsk Krai Region, Russia
Longitude
100.1966°
Latitude
64.2877°

Temporal

Start Date:
End Date:

Content

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation Crossing the boundaries of Critical Zone science with a virtual institute (SAVI) ICER 14-45246
National Science Foundation Deciphering the role of dissolved organic nitrogen in stream nutrient cycling DEB-1556603
Russian Foundation for Basic Research (RFBR) Small catchments within the continuous permafrost zone of Central Siberia: the role of wildfire and forest succession in stream biogeochemistry #14-05-00420
Russian Science Foundation (RSF) Sensitivity of carbon fluxes in land-atmosphere-hydrosphere system of Yenisey River catchment to climate variability #14-24-00113
National Science Foundation DMR-1157490

How to Cite

Rodriguez-Cardona, B., A. A. Coble, A. Wymore, R. Kolosov, D. C. Podgorski, P. Zito, R. G. Spencer, A. S. Prokushkin, W. McDowell (2018). Differential effects of biomass burning on carbon and nutrient dynamics in Arctic fluvial ecosystems, HydroShare, https://doi.org/10.4211/hs.5af38c0096014e3c96adecb92bc6e26d

This resource is shared under the Creative Commons Attribution CC BY.

 http://creativecommons.org/licenses/by/4.0/
CC-BY

Comments

There are currently no comments

New Comment

required