Carbon Sequestration and Sedimentation in Mangrove Swamps Influenced by Hydrogeomorphic Conditions and Urbanization in Southwest Florida
This study compares carbon sequestration rates along two independent tidal mangrove creeks near Naples Bay in Southwest Florida, USA. One tidal creek is hydrologically disturbed due to upstream land use changes; the other is an undisturbed reference creek. Soil cores were collected in basin, fringe,...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-05-01
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| Series: | Forests |
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| Online Access: | http://www.mdpi.com/1999-4907/7/6/116 |
| _version_ | 1811342392308006912 |
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| author | Daniel A. Marchio Michael Savarese Brian Bovard William J. Mitsch |
| author_facet | Daniel A. Marchio Michael Savarese Brian Bovard William J. Mitsch |
| author_sort | Daniel A. Marchio |
| collection | DOAJ |
| description | This study compares carbon sequestration rates along two independent tidal mangrove creeks near Naples Bay in Southwest Florida, USA. One tidal creek is hydrologically disturbed due to upstream land use changes; the other is an undisturbed reference creek. Soil cores were collected in basin, fringe, and riverine hydrogeomorphic settings along each of the two tidal creeks and analyzed for bulk density, total organic carbon profiles, and sediment accretion. Radionuclides 137Cs and 210Pb were used to estimate recent sediment accretion and carbon sequestration rates. Carbon sequestration rates (mean ± standard error) for seven sites in the two tidal creeks on the Naples Bay (98 ± 12 g-C m−2·year−1 (n = 18)) are lower than published global means for mangrove wetlands, but consistent with other estimates from the same region. Mean carbon sequestration rates in the reference riverine setting were highest (162 ± 5 g-C m−2·year−1), followed by rates in the reference fringe and disturbed riverine settings (127 ± 6 and 125 ± 5 g-C m−2·year−1, respectively). The disturbed fringe sequestered 73 ± 10 g-C m−2·year−1, while rates within the basin settings were 50 ± 4 g-C m−2·year−1 and 47 ± 4 g-C m−2·year−1 for the reference and disturbed creeks, respectively. These data support our hypothesis that mangroves along a hydrologically disturbed tidal creek sequestered less carbon than did mangroves along an adjacent undisturbed reference creek. |
| first_indexed | 2024-04-13T19:10:45Z |
| format | Article |
| id | doaj.art-e050e1723b894a419a83c598c0d168ae |
| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-04-13T19:10:45Z |
| publishDate | 2016-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Forests |
| spelling | doaj.art-e050e1723b894a419a83c598c0d168ae2022-12-22T02:33:52ZengMDPI AGForests1999-49072016-05-017611610.3390/f7060116f7060116Carbon Sequestration and Sedimentation in Mangrove Swamps Influenced by Hydrogeomorphic Conditions and Urbanization in Southwest FloridaDaniel A. Marchio0Michael Savarese1Brian Bovard2William J. Mitsch3Everglades Wetland Research Park and Department of Marine and Ecological Sciences, Florida Gulf Coast University, 4940 Bayshore Drive, Naples, FL 34112, USAEverglades Wetland Research Park and Department of Marine and Ecological Sciences, Florida Gulf Coast University, 4940 Bayshore Drive, Naples, FL 34112, USAEverglades Wetland Research Park and Department of Marine and Ecological Sciences, Florida Gulf Coast University, 4940 Bayshore Drive, Naples, FL 34112, USAEverglades Wetland Research Park and Department of Marine and Ecological Sciences, Florida Gulf Coast University, 4940 Bayshore Drive, Naples, FL 34112, USAThis study compares carbon sequestration rates along two independent tidal mangrove creeks near Naples Bay in Southwest Florida, USA. One tidal creek is hydrologically disturbed due to upstream land use changes; the other is an undisturbed reference creek. Soil cores were collected in basin, fringe, and riverine hydrogeomorphic settings along each of the two tidal creeks and analyzed for bulk density, total organic carbon profiles, and sediment accretion. Radionuclides 137Cs and 210Pb were used to estimate recent sediment accretion and carbon sequestration rates. Carbon sequestration rates (mean ± standard error) for seven sites in the two tidal creeks on the Naples Bay (98 ± 12 g-C m−2·year−1 (n = 18)) are lower than published global means for mangrove wetlands, but consistent with other estimates from the same region. Mean carbon sequestration rates in the reference riverine setting were highest (162 ± 5 g-C m−2·year−1), followed by rates in the reference fringe and disturbed riverine settings (127 ± 6 and 125 ± 5 g-C m−2·year−1, respectively). The disturbed fringe sequestered 73 ± 10 g-C m−2·year−1, while rates within the basin settings were 50 ± 4 g-C m−2·year−1 and 47 ± 4 g-C m−2·year−1 for the reference and disturbed creeks, respectively. These data support our hypothesis that mangroves along a hydrologically disturbed tidal creek sequestered less carbon than did mangroves along an adjacent undisturbed reference creek.http://www.mdpi.com/1999-4907/7/6/116carbon sequestrationsediment accretionmangrove wetlandscoastal geomorphologyblue carbon137Cs210PbRhizophora manglesea level rise |
| spellingShingle | Daniel A. Marchio Michael Savarese Brian Bovard William J. Mitsch Carbon Sequestration and Sedimentation in Mangrove Swamps Influenced by Hydrogeomorphic Conditions and Urbanization in Southwest Florida Forests carbon sequestration sediment accretion mangrove wetlands coastal geomorphology blue carbon 137Cs 210Pb Rhizophora mangle sea level rise |
| title | Carbon Sequestration and Sedimentation in Mangrove Swamps Influenced by Hydrogeomorphic Conditions and Urbanization in Southwest Florida |
| title_full | Carbon Sequestration and Sedimentation in Mangrove Swamps Influenced by Hydrogeomorphic Conditions and Urbanization in Southwest Florida |
| title_fullStr | Carbon Sequestration and Sedimentation in Mangrove Swamps Influenced by Hydrogeomorphic Conditions and Urbanization in Southwest Florida |
| title_full_unstemmed | Carbon Sequestration and Sedimentation in Mangrove Swamps Influenced by Hydrogeomorphic Conditions and Urbanization in Southwest Florida |
| title_short | Carbon Sequestration and Sedimentation in Mangrove Swamps Influenced by Hydrogeomorphic Conditions and Urbanization in Southwest Florida |
| title_sort | carbon sequestration and sedimentation in mangrove swamps influenced by hydrogeomorphic conditions and urbanization in southwest florida |
| topic | carbon sequestration sediment accretion mangrove wetlands coastal geomorphology blue carbon 137Cs 210Pb Rhizophora mangle sea level rise |
| url | http://www.mdpi.com/1999-4907/7/6/116 |
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