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Environmental Management

, Volume 64, Issue 4, pp 416–435 | Cite as

Shifting Ground: Landscape-Scale Modeling of Biogeochemical Processes under Climate Change in the Florida Everglades

  • Hilary FlowerEmail author
  • Mark Rains
  • H. Carl Fitz
  • William Orem
  • Susan Newman
  • Todd Z. Osborne
  • K. Ramesh Reddy
  • Jayantha Obeysekera
Article

Abstract

Scenarios modeling can be a useful tool to plan for climate change. In this study, we help Everglades restoration planning to bolster climate change resiliency by simulating plausible ecosystem responses to three climate change scenarios: a Baseline scenario of 2010 climate, and two scenarios that both included 1.5 °C warming and 7% increase in evapotranspiration, and differed only by rainfall: either increase or decrease by 10%. In conjunction with output from a water-use management model, we used these scenarios to drive the Everglades Landscape Model to simulate changes in a suite of parameters that include both hydrologic drivers and changes to soil pattern and process. In this paper we focus on the freshwater wetlands; sea level rise is specifically addressed in prior work. The decreased rainfall scenario produced marked changes across the system in comparison to the Baseline scenario. Most notably, muck fire risk was elevated for 49% of the period of simulation in one of the three indicator regions. Surface water flow velocity slowed drastically across most of the system, which may impair soil processes related to maintaining landscape patterning. Due to lower flow volumes, this scenario produced decreases in parameters related to flow-loading, such as phosphorus accumulation in the soil, and methylmercury production risk. The increased rainfall scenario was hydrologically similar to the Baseline scenario due to existing water management rules. A key change was phosphorus accumulation in the soil, an effect of flow-loading due to higher inflow from water control structures in this scenario.

Keywords

Scenarios modeling Carbon Peat Phosphorus Sulfate Methylmercury 

Notes

Acknowledgements

This material is based upon work supported by the National Science Foundation through the Florida Coastal Everglades Long-Term Ecological Research program under Cooperative Agreements No. DEB-1237517, Grant No. DBI-0620409, and Grant No. DEB-9910514. This project was also funded by the USGS Greater Everglades Priority Ecosystems Studies Program (Nick Aumen Program Manager). Any use of trade, firm or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. This is contribution number xxx from the Southeast Environmental Research Center at Florida International University. This manuscript benefited from the review of Dr. Brett Poulin from USGS, internal reviewers from SFWMD, and the insightful critiques of two anonymous reviewers.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Eckerd CollegeSt. PetersburgUSA
  2. 2.School of GeosciencesUniversity of South FloridaTampaUSA
  3. 3.EcoLandMod, Inc.Fort PierceUSA
  4. 4.U.S. Geological SurveyRestonUSA
  5. 5.Everglades Systems Assessment SectionWest Palm BeachUSA
  6. 6.Whitney Laboratory for Marine BioscienceUniversity of FloridaSt. AugustineUSA
  7. 7.Wetland Biogeochemistry Laboratory, Soil and Water Science DepartmentUniversity of FloridaGainesvilleUSA
  8. 8.Sea Level Solutions CenterFlorida International UniversityMiamiUSA

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