Article
Environmental Sciences
Ines J. Castro, Joao M. Dias, Carina L. Lopes
Summary: Salt marshes are important wetlands facing deterioration and loss. This study evaluates the accuracy of different satellite data in determining the shoreline of narrow and fringing salt marshes. The results show that Landsat and Sentinel-2 data can accurately describe the salt marsh shoreline. The study also highlights the retreat of salt marshes in ilhavo and S. Jacinto channels, while the salt marsh in Mira channel has shown some advancement after 2000.
Article
Environmental Sciences
Minjie Hu, Ruibing Yan, Hui Wu, Ranxu Ni, Dianquan Zhang, Shuangquan Zou
Summary: Accelerated marsh erosion caused by climate change and human activity leads to a decrease in phosphorus availability and alters the phoD-harboring bacterial community in subtropical coastal marshes, significantly reduction soil phosphorus pools and availability. The transformation of soil phosphorus and the diversity of phosphatase genes are mainly influenced by substrate availability and soil properties. This study provides valuable insights into the impacts of coastal erosion on nutrient balance and ecosystem function, which could inform wetland restoration and coastal management strategies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geography, Physical
Jack A. Cadigan, Navid H. Jafari, Nan Wang, Qin Chen, Ling Zhu, Brian D. Harris, Yan Ding
Summary: Mechanisms controlling marsh edge erosion include wind-generated waves, vegetation productivity, land use and land change, and sediment geotechnical properties. Existing models focus on wave energy and empirical constants, lacking high-frequency monitoring. This study developed a camera and erosion pin monitoring system, and observed that long-term erosion rates align with previously reported relationships between wave power and erosion while high-frequency measurements reveal short-term erosion events. The findings highlight the importance of high-frequency monitoring for accurate predictions of marsh edge erosion. Rating: 8/10
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Engineering, Marine
Ying Zhao, Zhong Peng, Qing He, Yuxi Ma
Summary: This study examines the wave attenuation over combinations of different vegetation types on tidal flats. The results show that the impact of vegetation combinations lies between that of individual vegetation types. The study proposes an empirical formula for calculating the wave transmission coefficient, taking into account multiple vegetation characteristics.
Article
Geosciences, Multidisciplinary
Yiyang Xu, Tarandeep S. Kalra, Neil K. Ganju, Sergio Fagherazzi
Summary: This study used a 3D fully coupled modeling system to simulate the final vegetation cover and timescale of salt marshes under different forcing conditions. The simulations showed that sediment concentration, settling velocity, sea level rise, and tidal range each had different impacts on the equilibrium coverage and timescale of marshes.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Ecology
Viktoria Kosmalla, Kara Keimer, David Schuerenkamp, Oliver Lojek, Nils Goseberg
Summary: This study investigates the erosion resistance of salt marsh soils influenced by grazing conditions using a novel shear resistance measuring device called DiCoastar. The results show that an increase in grazing intensity leads to an increase in shear strength, but a significant reduction in vegetation cover and plant diversity, potentially increasing the erosion potential of salt marshes and reducing dike stability.
ECOLOGICAL ENGINEERING
(2022)
Article
Environmental Sciences
Jing Li, Lijuan Cui, Manuel Delgado-Baquerizo, Juntao Wang, Yinuo Zhu, Rumiao Wang, Wei Li, Yinru Lei, Xiajie Zhai, Xinsheng Zhao, Brajesh K. Singh
Summary: This study investigated the shifts of microbial communities and soil multifunctionality along a vegetation gradient in a salt marsh ecosystem. The results showed that vegetation type had a significant impact on soil multifunctionality, and there was a positive correlation between fungal richness and soil multifunctionality.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Carina L. Lopes, Renato Mendes, Isabel Cacador, Joao M. Dias
Summary: This study proposes an alternative methodology to identify priority areas for conservation using a combination of LANDSAT satellite remote sensing and numerical modelling. It identifies the most deteriorated salt marshes in central and upper lagoon regions and determines that marsh loss and degradation are primarily due to increased tidal action triggered by deepening lagoon channels. The study predicts that climate-induced mean sea level rise will exacerbate marsh deterioration, emphasizing the importance of protecting and restoring salt marshes.
LAND DEGRADATION & DEVELOPMENT
(2021)
Article
Agricultural Engineering
Yijing Ding, Yanan Wang, Xushun Gu, Yuanyuan Peng, Shanshan Sun, Shengbing He
Summary: The study found that a salinity of 7% and 10% can promote the organic carbon release from reed biomass. The highest nitrate removal was observed at a salinity of 7%, and this removal rate increased from 54.06% to 74.37% after adding reed biomass. Additionally, the lowest nitrous oxide emission flux was also observed at this salinity, with a rate of 0.23 mg/(m2 h). Microbiological analysis showed that salinity had an impact on the microbial community, with an increase in the relative abundance of Chloroflexi and Actinobacteria and a decrease in Proteobacteria. The main functional genera of denitrification also changed with increasing salinity.
BIORESOURCE TECHNOLOGY
(2023)
Article
Evolutionary Biology
Brittany M. Bernik, Candice Y. Lumibao, Scott Zengel, John Pardue, Michael J. Blum
Summary: The study found that plants from different sources exhibited variations in landform characteristics, growth traits, and shoreline erosion rates, with nonlocal plants showing poorer performance in erosion, likely due to nitrogen limitation. Therefore, restoration practices should take into account intraspecific variation in landform engineers and in situ trials should be conducted to evaluate donor source suitability.
EVOLUTIONARY APPLICATIONS
(2021)
Article
Marine & Freshwater Biology
B. R. Evans, H. Brooks, C. Chirol, M. K. Kirkham, I Moller, K. Royse, K. Spencer, T. Spencer
Summary: This study investigated the relationship between the presence of different saltmarsh plants and the mechanical properties of the underlying substrate. The findings showed that vegetation can enhance sediment shear strengths, but the effect varies depending on the sediment type.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Ecology
Sean Khan Ooi, Aidan Barry, Beth A. Lawrence, Chris S. Elphick, Ashley M. Helton
Summary: This study aimed to investigate the relationship between salt marsh vegetation zones and denitrification potential, and to predict the impact of sea-level rise on denitrification rates. The results showed that vegetation zones were the best predictor of denitrification potential, and the shift in vegetation zones may affect denitrification potential.
ECOLOGICAL APPLICATIONS
(2022)
Article
Environmental Sciences
Ahmed T. Abbas, Anais Cardenas, Darius LaFond, Brandon Guasaquillo, Leila Belgaid, Priscilla Lee, Mary Alldred, Chester B. Zarnoch
Summary: The mutualism between Smooth Cordgrass and Ribbed Mussels can increase ecosystem services by removing excess nitrogen through denitrification. However, mussel beds can persist in areas where cordgrass has been lost due to sea-level rise and eutrophication. The function of these remnant mussel beds, in the absence of cordgrass, remains unclear. This study found that remnant mussel beds had larger mussels and similar rates of denitrification compared to mudflats, suggesting that the presence of mussels may not enhance nitrogen removal in eroded marsh sediments.
WETLANDS ECOLOGY AND MANAGEMENT
(2023)
Article
Engineering, Environmental
Xuefeng Peng, Qixing Ji, John H. Angell, Patrick J. Kearns, Jennifer L. Bowen, Bess B. Ward
Summary: Salt marsh sediments are key sites for nitrogen cycling and a significant source of nitrous oxide (N2O) production and consumption. Fertilization can impact nitrogen dynamics, increasing the importance of nitrification in N2O production. Changes in specific substrate utilization rates reveal shifts in microbial community composition and functional gene expression in response to long-term fertilization.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Ecology
Corianne Tatariw, Behzad Mortazavi, Taylor C. Ledford, Sommer F. Starr, Erin Smyth, Abigail Griffin Wood, Lorae T. Simpson, Julia A. Cherry
Summary: Human activities have led to a decrease in global salt marsh surface area, prompting the construction of marshes in terrestrial systems to mitigate this loss. While constructed marshes can rapidly recover ecosystem structure, the recovery of biogeochemical processes may be slow. Comparing denitrification and DNRA rates between excavation-created and natural reference salt marshes can help assess the recovery of ecosystem function.
RESTORATION ECOLOGY
(2021)
Article
Environmental Sciences
Rebecca J. Bernard, Behzad Mortazavi, Alice A. Kleinhuizen
Article
Environmental Sciences
Benjamin J. Wilson, Behzad Mortazavi, Ronald P. Kiene
Article
Environmental Sciences
Agota Horel, Behzad Mortazavi, Patricia A. Sobecky
SCIENCE OF THE TOTAL ENVIRONMENT
(2015)
Article
Plant Sciences
Jonathan G. Moser, Steven F. Oberbauer, Leonel Da S. L. Sternberg, Patrick Z. Ellsworth, Gregory Starr, Behzad Mortazavi, Paulo C. Olivas
AMERICAN JOURNAL OF BOTANY
(2016)
Article
Environmental Sciences
Jane M. Caffrey, James T. Hollibaugh, Behzad Mortazavi
MARINE POLLUTION BULLETIN
(2016)
Article
Multidisciplinary Sciences
J. Alberti, J. Cebrian, F. Alvarez, M. Escapa, K. S. Esquius, E. Fanjul, E. L. Sparks, B. Mortazavi, O. Iribarne
SCIENTIFIC REPORTS
(2017)
Article
Environmental Sciences
Alice A. Kleinhuizen, Behzad Mortazavi
ENVIRONMENTAL MANAGEMENT
(2018)
Article
Environmental Sciences
Rebecca J. Domangue, Behzad Mortazavi
ENVIRONMENTAL POLLUTION
(2018)
Review
Microbiology
Hidetoshi Urakawa, Suja Rajan, Megan E. Feeney, Patricia A. Sobecky, Behzad Mortazavi
ENVIRONMENTAL MICROBIOLOGY
(2019)
Article
Environmental Sciences
Corianne Tatariw, Nikaela Flournoy, Alice A. Kleinhuizen, Derek Tollette, Edward B. Overton, Patricia A. Sobecky, Behzad Mortazavi
ENVIRONMENTAL POLLUTION
(2018)
Article
Ecology
M. P. Jacquot, K. M. Dorgan, B. Mortazavi, A. A. Kleinhuizen, W. C. Clemo
MARINE ECOLOGY PROGRESS SERIES
(2018)
Article
Environmental Sciences
Zachary L. Nickerson, Behzad Mortazavi, Carla L. Atkinson
Article
Environmental Sciences
Taylor C. Ledford, Behzad Mortazavi, Corianne Tatariw, Olivia U. Mason
Article
Green & Sustainable Science & Technology
Alice A. Kleinhuizen, Rebecca J. Bernard, Behzad Mortazavi
CLEAN-SOIL AIR WATER
(2017)