Checking for non-preferred file/folder path names (may take a long time depending on the number of files/folders) ...

This resource contains some files/folders that have non-preferred characters in their name. Show non-conforming files/folders.

This resource contains content types with files that need to be updated to match with metadata changes. Show content type files that need updating.

Riparian groundwater nitrogen (N) isotopes reveal human imprints of dams and road salt salinization

Authors:
Owners:		This resource does not have an owner who is an active HydroShare user. Contact CUAHSI (help@cuahsi.org) for information on this resource.
Type:	Resource
Storage:	The size of this resource is 27.6 KB
Created:	Feb 02, 2024 at 8:26 p.m.
Last updated:	Feb 05, 2024 at 3:51 p.m. (Metadata update)
Published date:	Feb 05, 2024 at 3:51 p.m.
DOI:	10.4211/hs.5d326d1f18aa40738bf8bd7ec6e65eb9
Citation:	See how to cite this resource

Sharing Status:	Published
Views:	303
Downloads:	6
+1 Votes:	Be the first one to this.
Comments:	No comments (yet)

Abstract

Groundwater nitrate-N isotopes (δ15N-NO3-) have been used to infer the effects of natural and anthropogenic change on N cycle processes in the environment. Here we report unexpected changes in groundwater δ15N-NO3- for riparian zones affected by relict milldams and salinization. Contrary to natural conditions, groundwater δ15N-NO3- values declined from the upland edge through the riparian zone and were lowest near the stream. Groundwater δ15N-NO3- values increased for low electron donor (dissolved organic carbon and iron) to acceptor (NO3-) ratios but decreased beyond a specific change point. Groundwater δ15N-NO3- values were particularly low for the riparian milldam site subjected to road-salt salinization. We attributed these N isotopic trends to suppression of denitrification, occurrence of dissimilatory nitrate reduction to ammonium (DNRA), and/or road salt salinization. Groundwater δ15N-NO3- can provide valuable insights into process mechanisms and can serve as “imprints” of anthropogenic activities and legacies.

Subject Keywords

Content

Learn more about the BagIt download

Select a file to see file type metadata.

Credits

Funding Agencies

This resource was created using funding from the following sources:

Agency Name	Award Title	Award Number
National Science Foundation	Hydrologic Sciences grant	#1929747 and # 2213855.

How to Cite

Inamdar, S., M. Peipoch, M. Sena, B. Joshi, M. M. Rahman, J. Kan, E. K. Peck, A. Gold, T. L. E. Trammell, P. M. Groffman (2024). Riparian groundwater nitrogen (N) isotopes reveal human imprints of dams and road salt salinization, HydroShare, https://doi.org/10.4211/hs.5d326d1f18aa40738bf8bd7ec6e65eb9

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

Comments

There are currently no comments