DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Initiation and Development of Wetlands in Southern Florida Karst Landscape Associated With Accumulation of Organic Matter and Vegetation Evolution

Journal Article · · Journal of Geophysical Research. Biogeosciences
ORCiD logo [1]; ORCiD logo [2];  [2]; ORCiD logo [2]; ORCiD logo [2];  [3];  [2];  [4]; ORCiD logo [5];  [6]; ORCiD logo [2];  [2]
  1. Univ. of Florida, Gainesville, FL (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Univ. of Florida, Gainesville, FL (United States)
  3. Univ. of Florida, Gainesville, FL (United States); Suwannee River Water Management District, Live Oak, FL (United States)
  4. Duke Univ., Durham, NC (United States)
  5. Univ. of Florida, Gainesville, FL (United States); Pacific Northwest National Lab. (PNNL), Sequim, WA (United States)
  6. Univ. of Florida, Gainesville, FL (United States); Univ. of Florida, St. Augustine, FL (United States)

Biological processes can exert important controls on geomorphic evolution in karst landscapes, because carbonate mineral dissolution is augmented and spatially focused by the production of CO2 and biogenic acids from organic matter (OM) decomposition. In Big Cypress National Preserve (BICY) in southwest Florida (USA), depressional wetlands embedded in a mosaic of pine uplands exhibit regular patterning. To understand the impact of OM decomposition as well as different OM sources on carbonate dissolution and landscape patterning, we measured bulk OM property and biomarker proxies (fatty acids and lignin phenols) in different zones (center vs. edge) of the depressional wetlands. We also constructed age profiles of sediment accretion and pattern genesis using 210Pb activities and compound- specific radiocarbon analysis (CSRA) of long-chain fatty acids. Bulk OM and biomarker data indicate rapid OM accumulation in wetland centers resulting from high primary production and near permanent inundation, in contrast to negligible OM accumulation at wetland edges. Age discontinuities suggest episodic periods of near complete OM loss due to decomposition and/or fire. Based on CSRA, landscape patterning likely initiated in the mid-to-late Holocene, with wetlands at slight higher elevation initiated earlier than wetlands at lower elevation. Bulk stable isotope and lignin phenol biomarkers indicate wetland vegetation was initially dominated by herbaceous species and shifted to woody dominated vegetation as landscape hydrology adjusted to changing precipitation. The rate of weathering is likely impacted by hydrological conditions, vegetation dynamics and environmental perturbations like precipitation and fires, suggesting that this karst landscape is a manifestation of complex ecosystem feedbacks.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1560137
Report Number(s):
PNNL-SA--136524
Journal Information:
Journal of Geophysical Research. Biogeosciences, Journal Name: Journal of Geophysical Research. Biogeosciences Journal Issue: 6 Vol. 124; ISSN 2169-8953
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (57)

Effects of Biokarstic Processes on the Development of Solutional Rillenkarren in Limestone Rocks journal May 1996
Holocene peatland initiation in the Greater Everglades: Holocene peatland initiation journal February 2015
Multimolecular tracers of terrestrial carbon transfer across the pan-Arctic: 14 C characteristics of sedimentary carbon components and their environmental controls : MULTIMOLECULAR journal November 2015
Erosion of modern terrestrial organic matter as a major component of sediments in fjords journal February 2017
Weathering and biokarst development on marine terraces, northwest Morocco journal January 2003
Evidence of biogeomorphic patterning in a low-relief karst landscape: KARST LANDSCAPE PATTERN journal June 2014
Heterogeneous distributions of CO 2 may be more important for dissolution and karstification in coastal eogenetic limestone than mixing dissolution : CAVES IN COASTAL EOGENETIC LIMESTONE journal February 2015
Organic carbon inputs, common ions and degassing: rethinking mixing dissolution in coastal eogenetic carbonate aquifers: Rethinking Mixing Dissolution in Coastal Eogenetic Carbonate Aquifers journal July 2016
Paleoclimate of Southwestern China for the Past 50,000 yr Inferred from Lake Sediment Records journal November 1999
Low-background gamma counting: applications for210Pb dating of sediments journal January 1994
Fractal analysis of the Oyo River, cave systems, and topography of the Gunungsewu karst area, central Java, Indonesia journal June 2000
Molecular characterization of Cladium peat from the Florida Everglades: biomarker associations with humic fractions journal October 2006
Using soil profiles of seeds and molecular markers as proxies for sawgrass and wet prairie slough vegetation in Shark Slough, Everglades National Park journal October 2006
Preservation of elemental and isotopic source identification of sedimentary organic matter journal June 1994
The lignin geochemistry of marine sediments from the southern Washington coast journal November 1979
Lignin dimers: Structures, distribution, and potential geochemical applications journal November 1992
Early diagenesis of vascular plant tissues: Lignin and cutin decomposition and biogeochemical implications journal December 1995
Microbial degradation of lignin journal January 1980
Carbon isotope fractionation of sapropelic organic matter during early diagenesis journal January 1984
The biogeochemistry of Ellesmere Lake, U.K.—I: source correlation of leaf wax inputs to the sedimentary lipid record journal January 1991
Karst hydrology: recent developments and open questions journal August 2002
Distribution and sources of organic biomarkers in arctic sediments from the Mackenzie River and Beaufort Shelf journal July 2000
Carbonate minerals in the global carbon cycle journal January 2017
Ecohydrologic processes and soil thickness feedbacks control limestone-weathering rates in a karst landscape journal May 2018
Mass balance implies Holocene development of a low-relief karst patterned landscape journal May 2018
Geomorphology and ecology: Unifying themes for complex systems in biogeomorphology journal July 2006
Inconsistencies between 14 C and short-lived radionuclides-based sediment accumulation rates: Effects of long-term remineralization journal August 2017
Modifying a sealed tube zinc reduction method for preparation of AMS graphite targets: Reducing background and attaining high precision
  • Xu, Xiaomei; Trumbore, Susan E.; Zheng, Shuhui
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 259, Issue 1 https://doi.org/10.1016/j.nimb.2007.01.175
journal June 2007
Intercomparison of radiocarbon bomb pulse and 210Pb age models. A study in a peat bog core from North Poland
  • Piotrowska, Natalia; Vleeschouwer, François De; Sikorski, Jarosław
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 268, Issue 7-8 https://doi.org/10.1016/j.nimb.2009.10.124
journal April 2010
Sediment and soil organic matter source assessment as revealed by the molecular distribution and carbon isotopic composition of n-alkanes journal March 2005
Sources of sedimentary organic matter in the Mississippi River and adjacent Gulf of Mexico as revealed by lipid biomarker and δ13CTOC analyses journal April 2008
Late Quaternary variation of lignin composition in core MD01-2421 off central Japan, NW Pacific journal December 2005
Absolute Dating of Recent Sediments in the Cyclone-influenced Shelf Area Off Bangladesh: Comparison of Gamma Spectrometric ( 137 Cs, 210 Pb, 228 Ra), Radiocarbon, and 32 Si Ages journal January 2001
Compound-Specific Radiocarbon Ages of Fatty Acids in Marine Sediments from the Western North Pacific journal January 2001
Gas Chromatographic Isolation of Individual Compounds from Complex Matrices for Radiocarbon Dating journal January 1996
Compound specific radiocarbon and δ 13 C measurements of fatty acids in a continental aerosol sample journal December 2001
Photochemical degradation of dissolved organic matter and dissolved lignin phenols from the Congo River journal January 2009
Carbon and sediment accumulation in the Everglades (USA) during the past 4000 years: Rates, drivers, and sources of error: EVERGLADES CARBON AND SEDIMENT journal September 2012
Early development of Karst aquifers on percolation networks of fractures in limestone journal March 1998
Methane flux and stable hydrogen and carbon isotope composition of sedimentary methane from the Florida Everglades journal December 1988
Soil warming and organic carbon content journal December 2000
Mid- to late-Holocene El Nino-Southern Oscillation dynamics reflected in the subtropical terrestrial realm journal July 2005
Sea level and global ice volumes from the Last Glacial Maximum to the Holocene journal October 2014
The Role of Dissolution Kinetics in the Development of Karst Aquifers in Limestone: A Model Simulation of Karst Evolution journal September 1990
Biokarst on Limestone Coasts, Morphogenesis and Sediment Production journal March 1983
Florida Submergence Curve Revised: Its Relation to Coastal Sedimentation Rates journal February 1969
Rapid Exchange Between Soil Carbon and Atmospheric Carbon Dioxide Driven by Temperature Change journal April 1996
Sea-level rise due to polar ice-sheet mass loss during past warm periods journal July 2015
Origin and morphology of limestone caves journal January 1991
Biogeomorphology and contingent ecosystem engineering in karst landscapes journal January 2016
Effects of sample mass and macrofossil type on radiocarbon dating of arctic and boreal lake sediments journal July 2005
Radiocarbon Chronology of the Florida Everglades Peat1 journal January 1969
Recent and Long-Term Organic Soil Accretion and Nutrient Accumulation in the Everglades journal January 1998
Peat Accretion and N, P, and Organic C Accumulation in Nutrient-Enriched and Unenriched Everglades Peatlands journal August 1993
IntCal13 and Marine13 Radiocarbon Age Calibration Curves 0–50,000 Years cal BP journal January 2013
Smoldering Combustion and Ground Fires: Ecological Effects and Multi-Scale Significance journal April 2013
Effects of sample mass and macrofossil type on radiocarbon dating of arctic and boreal lake sediments text January 2005

Cited By (1)

Scale‐Dependent Patterning of Wetland Depressions in a Low‐Relief Karst Landscape journal August 2019