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.
Back from the past? Assessment of nitrogen removal ability of buried historic wetland soils before and after a one-year incubation on a restored floodplain
| 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 31.4 KB | |
| Created: | Aug 20, 2023 at 7:38 p.m. | |
| Last updated: | Oct 16, 2023 at 1:41 p.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
|---|---|
| Views: | 159 |
| Downloads: | 3 |
| +1 Votes: | Be the first one to this. |
| Comments: | No comments (yet) |
Abstract
Stream, floodplain, and wetland restorations have enhanced water quality and to some extent ecological function; however, soil health is prioritized infrequently in restoration planning or monitoring. Buried, historic, hydric soils – common across U.S. mid-Atlantic valley bottoms beneath legacy sediments – are not included in most floodplain restoration designs, though they may retain favorable biogeochemical characteristics and host legacy microbial communities that could support ecosystem recovery if exhumed and preserved. To assess the efficacy of including historic hydric soils in floodplain restoration, we characterized pre-Colonial wetland soils buried below legacy sediments and now exposed along incised streambanks across the mid-Atlantic. We compared carbon (C) and nitrogen (N) contents; C:N ratios; nitrate-N and ammonium-N concentrations; denitrification rates; functional genes for denitrification (nosZ) and nitrification (amoA for AoA+AoB); and phospholipid fatty acid (PLFA) biomasses of historic wetland soils with contemporary wetland soils before and after a one-year incubation in a recently restored floodplain. Compared to modern wetland soils, historic hydric soils that are now buried by legacy sediment are less nutrient-rich, have fewer functional genes for and lower rates of denitrification, and possess significantly less microbial biomass. Following the one-year incubation, many of these concentrations, rates, and gene counts increased in historic soils, though incubated modern soils showed greater improvements. Ultimately, our results suggest that while inclusion of historic, hydric soils and their legacy microbiomes is valuable in floodplain restoration, the recovery of historic, hydric soils is slow and attainment of restoration goals, such as increased denitrification, may require multiple years.
Subject Keywords
Coverage
Spatial
Temporal
| Start Date: | |
|---|---|
| End Date: |
Content
Credits
Funding Agencies
This resource was created using funding from the following sources:
| Agency Name | Award Title | Award Number |
|---|---|---|
| EPA | Region 3 Wetland Program Development Grant | 210245 |
| USDA | AFRI Award | 2020-67019-31164 |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
Comments
There are currently no comments
New Comment