Document Type

Thesis

Degree

Master of Science (MS)

Department

Environmental Studies

First Advisor's Name

Leonard J. Scinto

First Advisor's Committee Title

Committee Chair

Second Advisor's Name

René M. Price

Second Advisor's Committee Title

Committee Member

Third Advisor's Name

John S. Kominoski

Third Advisor's Committee Title

Committee Member

Fourth Advisor's Name

Thomas W. Dreschel

Fourth Advisor's Committee Title

Committee Member

Keywords

Methane, Carbon Dioxide, Emissions, Efflux, Everglades, Wetland, Pore-water, Peat

Date of Defense

11-12-2015

Abstract

Reducing the rates of greenhouse gas (GHG) emissions is critical in combatting global climate change. Carbon dioxide (CO2) and methane (CH4) are the two most important carbon-based GHGs, for their atmospheric warming potential. Wetlands such as the Florida Everglades play major roles in the global carbon cycle, as varying hydrologic conditions lead to differential production rates of these two GHGs. This study measured CO2 and CH4 emissions in a re-created Everglades ridge-and-slough wetland, where water levels were controlled to reflect natural flood patterns. As expected, lower elevations were flooded longer and produced more CH4, while higher elevations produced more CO2. Since CH4 has a relatively high global warming potential, CO2 production would need to be 70 times that of CH4, to balance their GHG output. The average ratio of CO2 to CH4 across elevations was 22.0 (mol:mol), indicating that future water management within wetlands should consider GHG production potential.

Identifier

FIDC000188

Share

COinS
 

Rights Statement

Rights Statement

In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).