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The exchange of multiple greenhouse gases (i.e., CO2 </sub>and CH4</sub>) between tree stems and the atmosphere represents a knowledge gap in the global carbon cycle. Stem CO2</sub> and CH4</sub> fluxes vary across time and space and is unclear which are their individual or shared drivers. This dataset contains information of CO2</sub> and CH4</sub> fluxes at different stem heights combining manual (biweekly; n=678) and automated (hourly; n>38,000) measurements in a temperate upland forest.</div>This study was performed in an upland forested area at the St. Jones Reserve [39°5’20”N, 75°26’21”W], a component of the Delaware National Estuarine Research Reserve (DNERR).</div></div>The dominant vegetation species are bitternut hickory (Carya cordiformis</i>), eastern red cedar (Juniperus virginiana</i> L.), American holly (Ilex opaca</i> (Ashe)), sweet gum (Liquidambar styraciflua</i> L.) and black gum (Nyssa sylvatica</i> (Marshall)), with an overall tree density of 678 stems ha-1</sup> and mean diameter at breast height (DBH) of 25.7±13.9 cm (mean±sd). We studied bitternut hickory, which is one of the most important species in the study site, accounting for 24.9% of the total basal area.</div></div>For code </div>
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Carbon Dioxide and Methane Emissions from a Temperate Salt Marsh Tidal Creek: Dataset
Coastal salt marshes store large amounts of carbon but the magnitude and patterns of greenhouse gas (GHG; i.e., carbon dioxide (CO2</sub>) and methane (CH4</sub>)) fluxes are unclear. Information about GHG fluxes from these ecosystems comes from studies of sediments or at the ecosystem-scale (eddy covariance) but fluxes from tidal creeks are unknown. </div>This dataset includes GHG concentrations in water, water quality, meteorology, sediment CO2</sub> efflux, ecosystem-scale GHG fluxes, and plant phenology; all at half-hour time-steps over one year.</div></div>This study was carried out in the St. Jones Reserve, a component of the Delaware National Estuarine Research Reserve in Dover, Delaware, U.S.A. The study site is part of the following networks:</div></div>- AmeriFlux (https://ameriflux.lbl.gov/sites/siteinfo/US-StJ) </div>- Phenocam (https://phenocam.sr.unh.edu/webcam/sites/stjones/) </div></div>The GHG concentration and efflux sampling point was located at Aspen Landing within a microtidal (mean tide range of 1.5 m), mesohaline (typical salinity of 5-18 ppt) salt marsh (Delaware Department of Natural Resources and Environmental Control, 2006) tidal creek.</div></div>Main reference:</div> Trifunovic, B., Vázquez‐Lule, A., Capooci, M., Seyfferth, A. L., Moffat, C., & Vargas, R. (2020). Carbon dioxide and methane emissions from a temperate salt marsh tidal creek. Journal of Geophysical Research: Biogeosciences, 125, e2019JG005558. https://doi.org/ 10.1029/2019JG005558 </p> </div> </div> </div></div>
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- Award ID(s):
- 1652594
- PAR ID:
- 10395724
- Publisher / Repository:
- figshare
- Date Published:
- Subject(s) / Keyword(s):
- Ecology 50301 Carbon Sequestration Science 50101 Ecological Impacts of Climate Change 50102 Ecosystem Function 50206 Environmental Monitoring Hydrology
- Format(s):
- Medium: X Size: 2098493 Bytes
- Size(s):
- 2098493 Bytes
- Sponsoring Org:
- National Science Foundation
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