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Response of ammonium uptake to carbo...

Meyer, Anna DeForest.

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Response of ammonium uptake to carbon availability in an agriculturally influenced first order stream.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Response of ammonium uptake to carbon availability in an agriculturally influenced first order stream./
Author:	Meyer, Anna DeForest.
Description:	59 p.
Notes:	Source: Masters Abstracts International, Volume: 53-06.
Contained By:	Masters Abstracts International53-06(E).
Subject:	Biogeochemistry. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1526048
ISBN:	9781321340518

Response of ammonium uptake to carbon availability in an agriculturally influenced first order stream.
Meyer, Anna DeForest.

Response of ammonium uptake to carbon availability in an agriculturally influenced first order stream. - 59 p.

Source: Masters Abstracts International, Volume: 53-06.

Thesis (M.S.)--University of New Hampshire, 2014.

This item must not be sold to any third party vendors.

Ammonium dynamics are directly linked to other nitrogen (N) species and the carbon cycle. Nitrification of ammonium can provide an energy source, and assimilatory uptake of ammonium provides a nitrogen source to both heterotrophic and autotrophic organisms. To understand the role of dissolved organic carbon (DOC) as a potential driver of ammonium uptake in headwater streams with high N inputs, Tracer Addition for Spiraling Curve Characterization slug injection experiments were conducted in an agricultural stream under different concentrations of DOC. On all six experiment days there was a strong, positive linear relationship between ammonium concentration and areal uptake. The elevated DOC treatment affected ammonium uptake kinetics infrequently and inconsistently. A decrease in nitrate concentration coincided with the slug injection on each experiment day. Possible mechanisms for the decrease in nitrate include suppression of nitrification and anammox.

ISBN: 9781321340518Subjects--Topical Terms:

545717
Biogeochemistry.

Response of ammonium uptake to carbon availability in an agriculturally influenced first order stream.
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020 $a 9781321340518
035 $a (MiAaPQ)AAI1526048
035 $a AAI1526048
040 $a MiAaPQ $c MiAaPQ
100 1 $a Meyer, Anna DeForest. $3 3174834
245 1 0 $a Response of ammonium uptake to carbon availability in an agriculturally influenced first order stream.
300 $a 59 p.
500 $a Source: Masters Abstracts International, Volume: 53-06.
500 $a Adviser: William H. McDowell.
502 $a Thesis (M.S.)--University of New Hampshire, 2014.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a Ammonium dynamics are directly linked to other nitrogen (N) species and the carbon cycle. Nitrification of ammonium can provide an energy source, and assimilatory uptake of ammonium provides a nitrogen source to both heterotrophic and autotrophic organisms. To understand the role of dissolved organic carbon (DOC) as a potential driver of ammonium uptake in headwater streams with high N inputs, Tracer Addition for Spiraling Curve Characterization slug injection experiments were conducted in an agricultural stream under different concentrations of DOC. On all six experiment days there was a strong, positive linear relationship between ammonium concentration and areal uptake. The elevated DOC treatment affected ammonium uptake kinetics infrequently and inconsistently. A decrease in nitrate concentration coincided with the slug injection on each experiment day. Possible mechanisms for the decrease in nitrate include suppression of nitrification and anammox.
590 $a School code: 0141.
650 4 $a Biogeochemistry. $3 545717
650 4 $a Water resources management. $3 794747
650 4 $a Environmental science. $3 677245
690 $a 0425
690 $a 0595
690 $a 0768
710 2 $a University of New Hampshire. $3 1017788
773 0 $t Masters Abstracts International $g 53-06(E).
790 $a 0141
791 $a M.S.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1526048