contributions of microbial activity and ash deposition to post-fire nitrogen availability in a pine savanna
Clicks: 139
ID: 177215
2017
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
Emerging Content
30.0
/100
139 views
26 readers
AI Quality Assessment
Not analyzed
Readership in this journal
EmergingRanked #240 of 345 articles by views in tetrahedron letters
Most read
Least read
Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 345 in total.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
Many ecosystems experience drastic changes to soil nutrient availability
associated with fire, but the magnitude and duration of these changes are
highly variable among vegetation and fire types. In pyrogenic pine savannas
across the southeastern United States, pulses of soil inorganic nitrogen (N)
occur in tandem with ecosystem-scale nutrient losses from prescribed burns.
Despite the importance of this management tool for restoring and maintaining
fire-dependent plant communities, the contributions of different mechanisms
underlying fire-associated changes to soil N availability remain unclear.
Pulses of N availability following fire have been hypothesized to occur
through (1) changes to microbial cycling rates and (2) direct ash deposition.
Here, we document fire-associated changes to N availability across the
growing season in a longleaf pine savanna in North Carolina. To differentiate
between possible mechanisms driving soil N pulses, we measured net microbial
cycling rates and changes to soil δ15N before and after a burn. Our
findings refute both proposed mechanisms: we found no evidence for changes in
microbial activity, and limited evidence that ash deposition could account
for the increase in ammonium availability to more than 5–25 times background
levels. Consequently, we propose a third mechanism to explain post-fire
patterns of soil N availability, namely that (3) changes to plant sink
strength may contribute to ephemeral increases in soil N availability, and
encourage future studies to explicitly test this mechanism.
| Reference Key |
ficken2017biogeosciencescontributions
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | ;C. D. Ficken;J. P. Wright |
| Journal | tetrahedron letters |
| Year | 2017 |
| DOI |
10.5194/bg-14-241-2017
|
| URL | |
| Keywords |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.