Learn more. Estimating Net Primary Productivity and Nutrient Stock in Plant in Freshwater Marsh, Northeastern China Junbao Yu Corresponding Author E-mail address: Junbao.yu@gmail.com Laboratory of … Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Why is marsh productivity so high? Based on laboratory manipulations, denitrification rates increase with increases in water column NO 3 − ( Merrill, 1999 , Greene, 2005 ). Black Fork Wetlands Freshwater Marsh From banks to open water in an Ohio freshwater marsh Plant community zonation, detrital food web, wetland specialists, seasonal change, water cycle, primary productivity The NPP at the SJFM was typical of highly productive freshwater marshes, while the GPP was similar to that reported for other ecosystem types, including some with comparatively low NPPs. Productivity studies on freshwater marsh plants have focused primarily on PiiAag\nitcs ajaStAaZds (=P. Benthic Bacterial and Fungal Productivity and Carbon Turnover in a Freshwater Marsh Nanna Buesing* and Mark O. Gessner Department of Limnology, Swiss Federal Institute of Aquatic Science and Technology (Eawag/ETH High productivity (1.2–2.9 kg m-2yr-1) in Los Penasquitos Lagoon was attributed to the influences of freshwater impounded behind a sand bar which blocked the mouth of the lagoon during much of the study period. Due to their high levels of nutrients, freshwater marshes are one of the most productive ecosystems on earth. By continuing you agree to the use of cookies. There was no change in elevation of pulse plots after 3.5 yr. Based on measurements of bulk density and soil C, the decline of 2.8 cm of surface elevation resulted in a loss of 0.77 ± 0.5 kg C/m2 in press plots. Salt marsh linkages to productivity of penaeid shrimps and blue crabs in the northern Gulf of Mexico R.J. Zimmerman, et al. © 2021 Ecological Society of America. We experimentally increased salinities in a tidal freshwater marsh on the Altamaha River (Georgia, USA) by exposing the organic rich soils to 3.5 yr of continuous (press) and episodic (pulse) treatments with dilute seawater to simulate the effects of climate change such as sea level rise (press) and drought (pulse). 2. In tidal freshwater marshes, denitrification rates are correlated with benthic sediment O 2 demand in a New York marsh, but not in a tidal freshwater wetland in Maryland, USA (Merrill, 1999). 3. Number of times cited according to CrossRef: Differential effects of press vs. pulse seawater intrusion on microbial communities of a tidal freshwater marsh. Site Description: The Kearny Freshwater Marsh is a freshwater impoundment, adjacent to the Keegan Landfill at its southwestern corner. These results suggest that both increased flooding and salinity associated with climate change and sea-level rise may negatively impact productivity of brackish marsh species, but with variable effects by species and stressor. 21, No.3, p. 407-415 September 1998 Sedimentation Cycles in a River-MouthTidal Freshwater Marsh GREGORY B. PASTERNACK! Freshwater input structures soil properties, vertical accretion, and nutrient accumulation of Georgia and U.S. tidal marshes Christopher Craft1 School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405 A freshwater marsh is a non-tidal, non-forested marsh wetland that contains fresh water, and is continuously or frequently flooded. If you do not receive an email within 10 minutes, your email address may not be registered, Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username. However, there are no comparative, multiyear carbon exchange studies in Everglades freshwater ecosystems, which makes Tidal freshwater marshes in the Bay are threatened by sea-level rise and currently there are several areas where tall cordgrass marshes that are being transformed into arrow arum marsh because of rising waters (see this issue’s All rights reserved. Freshwater wetlands dominated by emergent vegetation (i.e., freshwater marshes) are generally highly productive [ Mitsch and Gosselink, 2007 ], and most of the produced biomass ultimately enters the … rectly and indirectly from the productivity and habitat provid-ed by the Bay’s marshes. Use the link below to share a full-text version of this article with your friends and colleagues. 2004). This study underscores the importance of autotrophic respiration and carbon allocation in determining marsh NPP. Please check your email for instructions on resetting your password. 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