{"type": "FeatureCollection", "features": [{"id": "10.1088/2752-664x/ac706a", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:18:09Z", "type": "Journal Article", "created": "2022-05-17", "title": "Spartina alterniflora has the highest methane emissions in a St. Lawrence estuary salt marsh", "description": "Abstract                <p>Salt marshes have the ability to store large amounts of \uffe2\uff80\uff98blue carbon\uffe2\uff80\uff99, potentially mitigating some of the effects of climate change. Salt marsh carbon storage may be partially offset by emissions of CH4, a highly potent greenhouse gas. Sea level rise and invasive vegetation may cause shifts between different elevation and vegetation zones in salt marsh ecosystems. Elevation zones have distinct soil properties, plant traits and rhizosphere characteristics, which affect CH4 fluxes. We investigated differences in CH4 emissions between four elevation zones (mudflat, Spartina alterniflora, Spartina patens and invasive Phragmites australis) typical of salt marshes in the northern Northwest Atlantic. CH4 emissions were significantly higher from the S. alterniflora zone (17.7 \uffc2\uffb1 9.7 mg C m\uffe2\uff88\uff922h\uffe2\uff88\uff921) compared to the other three zones, where emissions were negligible (&lt;0.3 mg C m\uffe2\uff88\uff922h\uffe2\uff88\uff921). These emissions were high for salt marshes and were similar to those typically found in oligohaline marshes with lower salinities. CH4 fluxes were significantly correlated with soil properties (salinity, water table depth, bulk density and temperature), plant traits (rhizome volume and biomass, root volume and dead biomass volume all at 0\uffe2\uff80\uff9315 cm) and CO2 fluxes. The relationships between CH4 emissions, and rhizome and root volume suggest that the aerenchyma tissues in these plants may be a major transport mechanism of CH4 from anoxic soils to the atmosphere. This may have major implications for the mitigation potential carbon sink from salt marshes globally, especially as S. alterniflora is widespread. This study shows CH4 fluxes can vary over orders of magnitude from different vegetation in the same system, therefore, specific emissions factors may need to be used in future climate models and for more accurate carbon budgeting depending on vegetation type.</p>", "keywords": ["13. Climate action", "salt marsh", " methane", " elevation zone", " spartina alterniflora", " spartina patens", " mudflat", " phragmites australis", " quebec", " st lawrence river", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1088/2752-664x/ac706a"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%3A%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/2752-664x/ac706a", "name": "item", "description": "10.1088/2752-664x/ac706a", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/2752-664x/ac706a"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-08-30T00:00:00Z"}}, {"id": "10.5281/zenodo.16026838", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:22:49Z", "type": "Dataset", "title": "Greenhouse gas mitigation potential of temperate fen paludicultures - Dataset", "description": "See ReadMe file for detailed description of available data and code.  Title of the associated publication: \u201cGreenhouse gas mitigation potential of temperate fen paludicultures\u201d  Authors: Carla Bockermann\u26661,2 https://orcid.org/0000-0002-9484-5746, Tim Eickenscheidt\u26661 https://orcid.org/0000-0002-3036-3238, Matthias Dr\u00f6sler https://orcid.org/0009-0007-4523-6964  \u2666Joint First Authorship: Carla Bockermann and Tim Eickenscheidt should be considered joint first author.  Institutional affiliations: 1Weihenstephan-Triesdorf University of Applied Sciences, Peatland Science Centre (PSC), Freising, Germany; 2Technical University of Munich, TUM School of Life Sciences, Freising, Germany  Corresponding Author Contact Information: carla.bockermann@hswt.de\u2003  Abstract: Peatlands lose their valuable carbon (C) sink function under intensive land use and turn into greenhouse gases (GHG) emission hotspots. Despite scarce empirical evidence, paludiculture is expected to have significant GHG mitigation potential for organic soils. This study provides the first comprehensive dataset on full GHG balances for newly established fen paludicultures over a water table (WT) gradient spanning annual mean WT of \u22120.29 m to +0.04 m, stratified into moderately rewetted conditions (\u22120.30 m < WT < \u22120.10 m) and rewetted conditions (WT \u2265 \u22120.10 m). We used manual and novel automated chambers to measure annual carbon dioxide (CO2), methane and nitrous oxide emissions from five typical fen plant species (Carex acutiformis, Phalaris arundinacea, Phragmites australis, Typha angustifolia and T. latifolia) newly established as peatland biomass crops in three temperate fen peatlands in southern Germany. Our study confirms a significant GHG mitigation potential for the tested plant species and found a C sink function of paludiculture. The results yield preliminary emission factors of \u22120.1 and \u221212.0 t CO2-equivalents ha\u22121 yr\u22121 under moderately rewetted conditions (n=39) and under rewetted conditions (n=43), respectively. We further identify an optimal annual mean WT of \u22120.07 m for maximizing GHG reduction across all plant species and sites with a net C sink achieved at a mean annual WT of \u2265 \u22120.12 m. Presuming the conversion of arable land into paludiculture, a mitigation potential of up to \u221251.9 t CO2-equivalent is attainable per hectare and year. These findings highlight that well-managed paludiculture could make a considerable contribution toward achieving the politically targeted CO2 sink function in the LULUCF sector.", "keywords": ["peatland", " organic soil", " water table", " Carex", " Phalaris", " Phragmites", " Typha", " LULUCF", " preliminary emission factor", " carbon balance"], "contacts": [{"organization": "Bockermann, Carla, Eickenscheidt, Tim, Dr\u00f6sler, Matthias,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.16026838"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.16026838", "name": "item", "description": "10.5281/zenodo.16026838", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.16026838"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-07-17T00:00:00Z"}}, {"id": "10.7910/DVN/IPZGLB", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:24:08Z", "type": "Dataset", "title": "What Happens After Phragmites Is Killed; Effect of Variable Tidal Flooding on Plant Growth and Carbon Allocation: A Marsh Organ Experiment", "description": "This dataset is from a mesocosm experiment where different native wetland species and the invasive species Phragmites australis were planted at different flooding levels in a tidal creek along the Rhode River, a subestuary of the Chesapeake Bay in Edgewater, Maryland. This dataset includes plant growth metrics (height, basal diameter, and stem counts), aboveground and belowground plant biomass, soil oxidation reduction potential, soil carbon, flooding levels, and salinity.", "keywords": ["native wetland planting; Phragmites; marsh elevation; flooding levels", "Earth and Environmental Sciences"], "contacts": [{"organization": "Jacobson, Sylvia, Whigham, Dennis, Brooks, Hope, Baldwin, Andrew H., McCormick, Melissa, Kettenring, Karin, Buehl, Eric,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.7910/DVN/IPZGLB"}, {"rel": "self", "type": "application/geo+json", "title": "10.7910/DVN/IPZGLB", "name": "item", "description": "10.7910/DVN/IPZGLB", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.7910/DVN/IPZGLB"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-01-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Phragmites&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Phragmites&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Phragmites&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Phragmites&offset=3", "hreflang": "en-US"}], "numberMatched": 3, "numberReturned": 3, "distributedFeatures": [], "timeStamp": "2026-05-25T04:00:52.422080Z"}