Article
Environmental Sciences
Duncan Rayner, William Glamore, Lisa Grandquist, Jamie Ruprecht, Katrina Waddington, Danial Khojasteh
Summary: Intertidal wetlands can adapt to sea level rise through lateral upslope retreat, sediment accumulation, and organic accretion, but future rates of SLR may require increased sediment capture to maintain wetland species composition. Using eco-hydraulic calculations and hydrodynamic models, it was found that current SLR rates are manageable, but accelerated SLR could lead to significant shifts in species composition and increased open water coverage.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Nathaniel B. Weston, Elise Rodriguez, Brian Donnelly, Elena Solohin, Kristen Jezycki, Sandra Demberger, Lori A. Sutter, James T. Morris, Scott C. Neubauer, Christopher B. Craft
Summary: The stability of coastal wetlands is influenced by sea level, plant primary production, sediment supply, and wetland vertical accretion. Human activities have impacted sediment delivery to coastal areas along the U.S East Coast. Wetlands in areas with low sediment supply may struggle to keep pace with rising sea levels. This study shows that the vertical accretion and carbon accumulation in tidal wetlands along the U.S East Coast can be explained by relative sea level rise, sediment concentration in rivers, and coastal temperature.
Article
Environmental Sciences
Anja Singer, Allert I. Bijleveld, Florian Hahner, Sander J. Holthuijsen, Krischan Hubert, Onur Kerimoglu, Loran Kleine Schaars, Ingrid Kroencke, Karsten A. Lettmann, Timo Rittweg, Gregor Scheiffarth, Henk W. van der Veer, Andreas Wurpts
Summary: Community analysis revealed significant changes in the abundance, biomass, and spatial distribution of macrofauna communities in the East-Frisian Wadden Sea from the 1980s to 2018, likely in response to environmental changes and anthropogenic stressors. The total abundance and biomass decreased, particularly in the eastern regions of the study site, possibly due to de-eutrophication processes. However, the abundance and biomass of the invasive bivalve Ensis leei increased significantly.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Kerrylee Rogers, Neil Saintilan
Summary: The fate of coastal wetlands and their ecosystem services depends on maintaining substrate elevations influenced by sea-level rise. A study in Australia analyzed a 20-year record of surface elevation change to investigate processes influencing surface elevation adjustment, finding varying contributions of different processes and the linear relationship between vertical accretion and accommodation space. The study also warns against unqualified use of models derived from the northern hemisphere due to differences in substrate adjustment to sea-level rise.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Ramin Familkhalili, Jenny Davis, Carolyn A. Currin, Madison E. Heppe, Susan Cohen
Summary: There is a growing interest in using vegetated coastal habitats as Nature Based Solutions (NBS) for shoreline protection, but there is uncertainty in how these habitats will respond to future rates of sea-level rise. In this study, the Sea Level Affecting Marshes Model (SLAMM) was used to examine the effects of projected sea-level rise by 2100 on a wetland complex in coastal North Carolina. The model results help to understand the long-term behavior of coastal wetlands and their effectiveness in coastal resilience strategies.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Marine & Freshwater Biology
Lulu He, Chenxin She, Jiafang Huang, Ping Yang, Hanxia Yu, Chuan Tong
Summary: This study examined the effects of constant and fluctuating salinity increases on CH4 emissions and methanogens in tidal freshwater marsh and floodplains. The results showed that salinity fluctuations significantly reduced methanogen abundance and diversity, and altered the community structure. Porewater sulfate and chloride concentrations, as well as pH, were important factors affecting methanogen abundance and diversity. Both constant and fluctuating salinity treatments reduced CH4 flux, and methanogen abundance and diversity were positively correlated with CH4 flux.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Review
Environmental Sciences
Donald R. Cahoon, Karen L. McKee, James T. Morris
Summary: This review emphasizes the importance of plants in determining the vulnerability of coastal wetlands to sea-level rise. Plants play a key role in stabilizing soil elevations and helping maintain wetland position by influencing sediment deposition and organic matter contributions. Recognition of the significance of plants in coastal wetland resilience is crucial for accurate predictions and effective management plans.
ESTUARIES AND COASTS
(2021)
Article
Ecology
Danika van Proosdij, Jennie Graham, Ben Lemieux, Tony Bowron, Emma Poirier, Jocelyn Kickbush, Kirsten Ellis, Jeremy Lundholm
Summary: This study focuses on tidal wetland restoration projects on two tidal rivers, aiming to restore tidal hydrology and observe sediment and vegetation changes. Results show rapid sediment accretion and diverse plant colonization, but the ultimate vegetation patterns may take longer to develop and the long-term resilience of these restored wetlands is still uncertain.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Ecology
Bo Pang, Tian Xie, Baoshan Cui, Qing Wang, Zhonghua Ning, Zezheng Liu, Cong Chen, Yuming Lu, Xiaohu Zhao
Summary: The adaptability of various coastal vegetations to sea level rise was evaluated using a global dataset and a marsh equilibrium model. The study found differences in sediment accretion efficiency among plant populations, with factors such as latitude, stem density, and root structure influencing the efficiency.
ECOSYSTEM HEALTH AND SUSTAINABILITY
(2023)
Article
Engineering, Civil
Angelo Breda, Patricia M. Saco, Jose F. Rodriguez, Steven G. Sandi, Gerardo Riccardi
Summary: Assessments of coastal wetland vulnerability to Sea Level Rise (SLR) often use simplified representations of tidal levels and sediment input. This study used an ecogeomorphological model and high-performance computing to simulate the variations in wetland evolution. The results showed that the model was able to reproduce the observed soil elevation change and the variability in inputs generated uncertainties in wetland evolution.
JOURNAL OF HYDROLOGY
(2022)
Article
Soil Science
Xiangwei Zhao, Xiaodong Zhang, Zimin Li, Lukas Van Zwieten, Yidong Wang, Qian Hao, Yuqiu Wei, Xiangbin Ran, Xiaomin Yang, Zhaoliang Song, Hailong Wang
Summary: The effects of sea level rise on the biogeochemical cycling of Si in coastal wetlands are still poorly understood. This study found that the content of labile Si was lower in sediments compared to soils. The main contributor to labile Si in sediments was phytoliths and diatoms. The storage of labile Si in sediment was significantly lower than in soil, indicating that coastal wetlands are an important source of Si to the estuary.
Article
Environmental Sciences
Michael G. Hughes, Tim M. Glasby, David J. Hanslow, Gregory J. West, Li Wen
Summary: This article introduces a method to predict the distribution of intertidal wetlands and predicts the future distribution under specified sea level scenarios. The method shows high accuracy and can be used to assess the vulnerability of intertidal wetlands to sea level rise and guide planning for wetland migration pathways.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
James R. Holmquist, Lauren N. Brown, Glen M. MacDonald
Summary: Coastal wetlands are vulnerable to sea-level rise in both vertical and lateral dimensions. The study introduced vertical and lateral resilience indices, predicting significant changes in marshes in the US by 2100. A geographic tradeoff between vertical and lateral resilience was observed, with different vulnerabilities in wetlands from the north to the south.
Article
Plant Sciences
Rui Zhou, Chao Yang, Enhua Li, Xiaobin Cai, Xuelei Wang
Summary: This study aimed to estimate the aboveground biomass (AGB) of Zizania latifolia in Honghu Wetland using high-resolution RGB imagery acquired from a UAV. The spatial distribution of Z. latifolia was extracted through an object-based classification method, and models including linear, quadratic, exponential, and back propagation neural network (BPNN) were constructed based on vegetation indices calculated from RGB images to invert the AGB. The results showed that the visible vegetation indices were significantly correlated with the AGB, and the BPNN model achieved the best inversion effect.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Environmental Sciences
Joaquin Ortiz, Javier Aristegui, Nauzet Hernandez-Hernandez, Mar Fernandez-Mendez, Ulf Riebesell
Summary: Artificial upwelling has been proposed as a method to enhance oceanic CO2 sequestration and fishery yields. However, there is limited evidence on its efficacy and side effects. A study conducted in oligotrophic waters showed that artificial upwelling had a significant impact on the pelagic community, especially at higher intensity. Recurring supply of upwelled waters showed better results compared to a single pulse.
FRONTIERS IN MARINE SCIENCE
(2022)