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  5. The nitrogen biochemistry of vacant lots across an urban land reuse gradient

The nitrogen biochemistry of vacant lots across an urban land reuse gradient

File(s)
2021_Marinos_Final.pdf (2.68 MB)
Permanent Link(s)
https://hdl.handle.net/1813/117770
Collections
Water Quality
Author
Conrad, Phillip
Marinos, Richard
Abstract

It is not known whether formerly residential vacant lots under varying reuse conditions are primarily a source or sink of nitrogen (N) pollution to surface waters. This study was conducted to determine how reuse intensity of properties increase N supply and N removal via denitrification. The effect of reuse intensity on N supply and N removal via denitrification were investigated, spanning undemolished vacant homes, turfgrass lots, and urban agriculture (UA). Land reuse intensity only affected soil properties in surficial soil horizons. Total N was 2.5x higher in UA soils than non-UA and nitrate was 2.6x higher in winter than summer. Despite higher soil N availability at UA sites, there were no obsered differences in denitrification activity between UA and non-UA sites. Although UA had similar denitrification activity and had high N availability compared to non-UA sites, UA only has moderate potential for runoff-driven N export, because nitrate concentrations were substantially lower than values typical for conventional agricultural soils.

Description
This report was prepared for the New York State Water Resources Institute (WRI) and the Hudson River Estuary program of the New York State Department of Environmental Conservation, with support from the NYS Environmental Protection Fund
Date Issued
2021
Publisher
New York State Water Resources Institute
Keywords
USGS
•
University at Buffalo
•
Great Lakes
•
Lake Erie
•
Water Quality
•
Surface Water
•
Environmental Assesment
•
Nutrients
•
Nitrogen
Rights
Attribution-NonCommercial 4.0 International
Rights URI
https://creativecommons.org/licenses/by-nc/4.0/
Type
report

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