Trends in stream nitrogen concentrations for forested reference catchments across the USA Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/cj82k798b

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Institute of Physics and can be found at:  http://www.iop.org/about/governance/iopp/page_38752.html.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • To examine whether stream nitrogen concentrations in forested reference catchments have changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr of data collected from 22 catchments at seven USDA Forest Service Experimental Forests. Trends in stream nitrogen presented high spatial variability both among catchments at a site and among sites across the USA. We found both increasing and decreasing trends in monthly flow-weighted stream nitrate and ammonium concentrations. At a subset of the catchments, we found that the length and period of analysis influenced whether trends were positive, negative or non-significant. Trends also differed among neighboring catchments within several Experimental Forests, suggesting the importance of catchment-specific factors in determining nutrient exports. Over the longest time periods, trends were more consistent among catchments within sites, although there are fewer long-term records for analysis. These findings highlight the critical value of long-term, uninterrupted stream chemistry monitoring at a network of sites across the USA to elucidate patterns of change in nutrient concentrations at minimally disturbed forested sites.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Argerich, A., McDowell, W., Scatena, F., Ice, G., Johnson, S., Sebestyen, S., . . . Campbell, J. (2013). Trends in stream nitrogen concentrations for forested reference catchments across the USA. Environmental Research Letters, 8(1) doi:10.1088/1748-9326/8/1/014039
Academic Affiliation
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Deborah Campbell(deborah.campbell@oregonstate.edu) on 2013-05-21T19:30:32Z (GMT) No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5) ArgerichAForestEcosystemsSocietyTrendsStreamNitrogen.pdf: 1583353 bytes, checksum: 2d0cbea4778269c5a9f7564b2e0aa3bc (MD5)
  • description.provenance : Made available in DSpace on 2013-05-21T19:30:32Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5) ArgerichAForestEcosystemsSocietyTrendsStreamNitrogen.pdf: 1583353 bytes, checksum: 2d0cbea4778269c5a9f7564b2e0aa3bc (MD5) Previous issue date: 2013-03-12
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2013-05-21T19:29:41Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5) ArgerichAForestEcosystemsSocietyTrendsStreamNitrogen.pdf: 1583353 bytes, checksum: 2d0cbea4778269c5a9f7564b2e0aa3bc (MD5)

Relationships

In Administrative Set:
Last modified: 07/08/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items