Sökning: id:"swepub:oai:DiVA.org:uu-196557" >
Biogeochemistry of ...
Biogeochemistry of beetle-killed forests : Explaining a weak nitrate response
-
Rhoades, Charles C. (författare)
-
McCutchan, James H., Jr. (författare)
-
Cooper, Leigh A. (författare)
-
visa fler...
-
Clow, David (författare)
-
Detmer, Thomas M. (författare)
-
Briggs, Jennifer S. (författare)
-
Stednick, John D. (författare)
-
Veblen, Thomas T. (författare)
-
Ertz, Rachel M. (författare)
-
- Likens, Gene E. (författare)
- Uppsala universitet,Limnologi
-
Lewis, William M., Jr. (författare)
-
visa färre...
-
(creator_code:org_t)
- 2013-01-14
- 2013
- Engelska.
-
Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 110:5, s. 1756-1760
- Relaterad länk:
-
https://www.pnas.org...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- A current pine beetle infestation has caused extensive mortality of. lodgepole pine (Pinus contorta) in forests of Colorado and Wyoming; it is part of an unprecedented multispecies beetle outbreak extending from Mexico to Canada. In United States and European watersheds, where atmospheric deposition of inorganic N is moderate to low (<10 kg.ha.y), disturbance of forests by timber harvest or violent storms causes an increase in stream nitrate concentration that typically is close to 400% of predisturbance concentrations. In contrast, no significant increase in streamwater nitrate concentrations has occurred following extensive tree mortality caused by the mountain pine beetle in Colorado. A model of nitrate release from Colorado watersheds calibrated with field data indicates that stimulation of nitrate uptake by vegetation components unaffected by beetles accounts for significant nitrate retention in beetle-infested watersheds. The combination of low atmospheric N deposition (<10 kg.ha.y), tree mortality spread over multiple years, and high compensatory capacity associated with undisturbed residual vegetation and soils explains the ability of these beetle-infested watersheds to retain nitrate despite catastrophic mortality of the dominant canopy tree species.
Nyckelord
- nitrogen biogeochemistry
- streamwater chemistry
- nitrate loss
- watershed disturbance
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Rhoades, Charles ...
-
McCutchan, James ...
-
Cooper, Leigh A.
-
Clow, David
-
Detmer, Thomas M ...
-
Briggs, Jennifer ...
-
visa fler...
-
Stednick, John D ...
-
Veblen, Thomas T ...
-
Ertz, Rachel M.
-
Likens, Gene E.
-
Lewis, William M ...
-
visa färre...
- Artiklar i publikationen
-
Proceedings of t ...
- Av lärosätet
-
Uppsala universitet