metadata.xml (49.91 kB)View fileThis item contains files with download restrictions
TEXT
metadata.html (19.76 kB)View fileThis item contains files with download restrictions
DATASET
breithaupt_et_al_2014_materials_and_methods.csv (0.76 kB)View fileThis item contains files with download restrictions
DATASET
breithaupt_et_al_2014_cores.csv (1.04 kB)View fileThis item contains files with download restrictions
DATASET
breithaupt_et_al_2014_depthseries.csv (56.2 kB)View fileThis item contains files with download restrictions
DATASET
breithaupt_et_al_2014_species.csv (1.01 kB)View fileThis item contains files with download restrictions
TEXT
citations.bib (0.92 kB)View fileThis item contains files with download restrictions
TEXT
custom.css (0.31 kB)View fileThis item contains files with download restrictions
TEXT
map.html (646.41 kB)View fileThis item contains files with download restrictions
Next page
Previous page
1/1
Switch ViewSwitch between different file views
Thumbnail viewList viewFile view
10 filesFullscreen
Dataset: Temporal variability of carbon and nutrient burial, sediment accretion, and mass accumulation over the past century in a carbonate platform mangrove forest of the Florida Everglades
posted on 2019-12-20, 18:32authored byJoshua L. Breithaupt, Joseph M. Smoak, Christian J. Sanders, Thomas J. Smith III
The objective of this research was to measure temporal variability in accretion and mass sedimentation rates (including organic carbon (OC), total nitrogen (TN), and total phosphorous (TP)) from the past century in a mangrove forest on the Shark River in Everglades National Park, USA. The 210Pb Constant Rate of Supply model was applied to six soil cores to calculate annual rates over the most recent 10, 50, and 100 year time spans. Our results show that rates integrated over longer timeframes are lower than those for shorter, recent periods of observation. Additionally, the substantial spatial variability between cores over the 10 year period is diminished over the 100 year record, raising two important implications. First, a multiple-decade assessment of soil accretion and OC burial provides a more conservative estimate and is likely to be most relevant for forecasting these rates relative to long-term processes of sea level rise and climate change mitigation. Second, a small number of sampling locations are better able to account for spatial variability over the longer periods than for the shorter periods. The site average 100 year OC burial rate, 123 +/- 19 (standard deviation) g m-2 yr-1, is low compared with global mangrove values. High TN and TP burial rates in recent decades may lead to increased soil carbon remineralization, contributing to the low carbon burial rates. Finally, the strong correlation between OC burial and accretion across this site signals the substantial contribution of OC to soil building in addition to the ecosystem service of CO2 sequestration.
Funding
National Science Foundation under South Florida Water, Sustainability & Climate. Grant Number: 1204079
National Science Foundation. Grant Number: DBI‐0620409