EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/21/2019 | 11:45 AM - 12:00 PM | NUTRIENT DYNAMICS IN AN URBAN FOREST FRAGMENT. | 151 ABC
NUTRIENT DYNAMICS IN AN URBAN FOREST FRAGMENT.
Abrupt transitions in riparian land use are a common feature of modern watersheds. In fragmented landscapes, forest remnants have the potential to ameliorate environmental conditions. Quantifying the temporal and spatial dynamics that modulate the biogeochemical reactivity in such transitions is key to estimate the potential of nutrient sequestration and retention of these remnants. In this study we examined the effects of flow regimes (hydrological opportunity) and temperature (biogeochemical reactivity) in the nutrient retention potential of a forest fragment within an urbanized catchment. The dataset is derived from a 3 year long weekly monitoring of nutrients in the Duke experimental forest. Along 1200 meters, NH4, NO3 and DOC were measured weekly in 7 sites along a 3-year period. We found higher input of nutrients summer days due to rainfall, as well as higher reactivity, with strong indication of nitrification. In general, the forested section was a net exporter export of both C and N. Export rates were lower in warmer temperatures for both total N and C. Export ratios of C and N were coupled in a 7.8 ratio and indicating strong biological modulation in nutrient export along the reach.
- Fragmentation
- Nutrients
- Aquatic-terrestrial Linkage
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
Rafael Feijó de Lima
(), University of Montana, rafael.feijo@mso.umt.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Emily Bernhardt
(), Duke University, ebernhar@duke.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Steven Thomas
(), School of Natural Resources, University of Nebraska-Lincoln, Lincoln, sthomas5@unl.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -