Ecosystem Development Variations in a Pacific Northwest Tidal Wetland Restoration Project (Janousek et al, 2021)

2022-06-28T13:43:59+00:00

Tidal wetland restoration through dike removal can enhance coastal ecosystem services, such as flood attenuation, fish production, and carbon sequestration. However, landscape-level heterogeneity may influence recovery. For a 169-ha restoration project in Tillamook Bay, Oregon, we hypothesized that areas of more intensive pre-restoration land use/land cover (cropping, grazing) would differ more from reference conditions before restoration than less-intensive uses and that initial post-restoration recovery would vary by land-use/land-cover type and wetland elevation. Before the restoration, the project site overall had higher nonnative plant cover, lower elevation and groundwater levels, and lower soil pH than reference high marsh, with some [...]

Ecosystem Development Variations in a Pacific Northwest Tidal Wetland Restoration Project (Janousek et al, 2021)2022-06-28T13:43:59+00:00

Sediment Accretion Blue Carbon Burial in Tidal Saline Wetlands (Peck et al, 2020)

2022-06-28T13:52:02+00:00

Oregon estuaries provide important opportunities to assess controls on tidal saline wetland carbon burial and sediment accretion as both rates of relative sea level rise (RSLR; −1.4 ± 0.9 to 2.8 ± 0.8 mm yr−1 ) and fluvial suspended sediment load relative to estuary area (0.23 to 17 × 103 t km−2 yr−1 ) vary along the coast. We hypothesized that vertical accretion, measured using excess 210Pb in least‐disturbed wetlands within seven Oregon estuaries, would vary with either RSLR or sediment load relative to estuary area, and carbon burial would correlate strongly to sediment accretion. Mean rates of high [...]

Sediment Accretion Blue Carbon Burial in Tidal Saline Wetlands (Peck et al, 2020)2022-06-28T13:52:02+00:00

Ecosystem Blue Carbon Stocks of the Pacific Northwest Coast (Kauffman et al, 2020)

2022-06-28T13:53:44+00:00

The coastal ecosystems of temperate North America provide a variety of ecosystem services including high rates of carbon sequestration. Yet, little data exist for the carbon stocks of major tidal wetland types in the Pacific Northwest, United States. We quantified the total ecosystem carbon stocks (TECS) in seagrass, emergent marshes, and forested tidal wetlands, occurring along increasing elevation and decreasing salinity gradients. The TECS included the total aboveground carbon stocks and the entire soil profile (to as deep as 3 m). TECS significantly increased along the elevation and salinity gradients: 217 ± 60 Mg C/ha for seagrass (low elevation/high [...]

Ecosystem Blue Carbon Stocks of the Pacific Northwest Coast (Kauffman et al, 2020)2022-06-28T13:53:44+00:00

Blue Carbon of the Pacific Northwest Coast (Kauffman et al, 2019)

2022-06-28T13:54:11+00:00

The coastal ecosystems of temperate North America provide a variety of ecosystem services including high rates of carbon sequestration. Yet, little data exist for the carbon stocks of major tidal wetland types in the Pacific Northwest, United States. We quantified the total ecosystem carbon stocks (TECS) in seagrass, emergent marshes, and forested tidal wetlands, occurring along increasing elevation and decreasing salinity gradients. The TECS included the total aboveground carbon stocks and the entire soil profile (to as deep as 3 m). TECS significantly increased along the elevation and salinity gradients: 217 ± 60 Mg C/ha for seagrass (low elevation/high salinity), [...]

Blue Carbon of the Pacific Northwest Coast (Kauffman et al, 2019)2022-06-28T13:54:11+00:00

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