Nitrogen loss from watersheds of interior Alaska underlain with discontinuous permafrost

Details Nitrogen loss from watersheds of interior Alaska underlain with discontinuous permafrost Nitrogen loss from watersheds of interior Alaska underlain with discontinuous permafrost

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3202401j&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 2, CiteID L02401

Physics

6

Global Change: Biogeochemical Cycles, Processes, And Modeling (0412, 0414, 0793, 4805, 4912), Hydrology: Frozen Ground, Hydrology: Surface Water Quality

Scientific paper

We constructed annual nitrogen budgets for four years for three watersheds underlain with discontinuous permafrost in interior Alaska. During all years, nitrogen export in stream flow exceeded input from deposition, with loss rate greatest from the two watersheds with the lowest spatial extents of permafrost. Elevated nitrogen export appears to be common in regions with discontinuous permafrost, based on nitrogen concentration in streams spanning a latitudinal gradient in permafrost coverage. This pattern of nitrogen loss is counter to temperate regions, where watersheds retain nitrogen even with elevated atmospheric deposition, and unexpected, given that terrestrial primary production appears to be nitrogen limited.

Affiliated with

Also associated with

No associations

Rating

Nitrogen loss from watersheds of interior Alaska underlain with discontinuous permafrost does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nitrogen loss from watersheds of interior Alaska underlain with discontinuous permafrost, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nitrogen loss from watersheds of interior Alaska underlain with discontinuous permafrost will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-902319