Article
Plant Sciences
Nazmus Salahin, Md. Khairul Alam, Sharif Ahmed, Mohammad Jahiruddin, Ahmed Gaber, Walaa F. Alsanie, Akbar Hossain, Richard W. Bell
Summary: Transitioning to minimal tillage and increased crop residue retention in an intensive rice-based cropping system in the Gangetic Plains of South Asia can significantly increase the accumulation of soil organic carbon (SOC) and total nitrogen (TN). Compared to conventional crop establishment practices, zero tillage, strip-tillage, and bed planting can more effectively sequester SOC and TN, leading to higher soil levels of SOC and TN.
Article
Limnology
Song Li, Robert R. Twilley, Aixin Hou
Summary: The study revealed that increasing nitrate concentrations shifted the dominance of N-2 fixation to denitrification in benthic nitrogen cycling. While high nitrate levels reduced N-2 fixation rates, they did not completely inhibit N-2 fixation, especially in sites with higher sediment organic matter concentrations.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Environmental Sciences
Kenneth J. Forshay, Julie N. Weitzman, Jessica F. Wilhelm, Jeffrey Hartranft, Dorothy J. Merritts, Michael A. Rahnis, Robert C. Walter, Paul M. Mayer
Summary: This article investigates the impact of restoration through reconnecting a stream to its historic floodplain and removing legacy sediments on nitrogen retention in systems with excess nitrate. The results show that biogeochemical processing increases and nitrogen retention improves after restoration, with the accumulation of organic matter supporting higher rates of denitrification over time.
Article
Engineering, Environmental
Yuzhou Huang, Xi Xiao, Kokoette Effiong, Caicai Xu, Zhinan Su, Jing Hu, Shaojun Jiao, Marianne Holmer
Summary: The study revealed significant accumulation of microplastics in blue carbon ecosystems, particularly in mangrove and seagrass habitats. There was a strong positive correlation between microplastic abundance and particulate organic carbon content in sediment. The research provided insights into the mechanism of microplastic trapping by BCEs and its relationship with organic carbon.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Sokkeang Be, Soydoa Vinitnantharat, Anawat Pinisakul
Summary: The study demonstrates that mangrove biochar residue can enhance nitrogen adsorption and retention in sediment, benefiting plant growth and reducing nitrogen pollution. Proper addition of biochar can improve nitrogen adsorption efficiency, reduce nitrogen leaching, and increase the abundance of nitrifying and denitrifying bacteria in sediment.
Review
Geochemistry & Geophysics
Ellen Wohl
Summary: Floodplains perform various functions, such as reducing the flow of water, solutes, and particulate material, with critical details influenced by biogeochemical processes and biotic communities. The storage of diverse materials in floodplains can be conceptualized through budgeting, improving resilience to various disturbances.
REVIEWS OF GEOPHYSICS
(2021)
Article
Environmental Sciences
Pongpet Pongsivapai, Junjiro N. Negishi, Hokuto Izumi, Paolo A. Garrido, Kanta Kuramochi
Summary: This study found that the temporal change in sediment properties over decades was mainly driven by morphometry, while land use in the catchment played a relatively minor role. The rate of change in organic matter (OM) differed among water bodies depending on their morphometry. Small and shallow water bodies provided suitable habitat for macrophytes that led to OM deposits, resulting in an increase in OM and OM to total nitrogen (TN) ratio over time.
Article
Environmental Sciences
C. J. Weber, C. Opp, J. A. Prume, M. Koch, T. J. Andersen, P. Chifflard
Summary: The contamination of oceans, freshwaters, and soils by microplastics has become a major challenge in the Anthropocene. This study investigates the spatial distribution of microplastic particles in floodplain soils and advances our understanding of their deposition and relocation at the aquatic-terrestrial interface.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
John T. Kemper, Sara L. Rathburn, Jonathan M. Friedman, John M. Nelson, Erich R. Mueller, Kirk R. Vincent
Summary: The study uses sediment geochemistry and fingerprinting analysis to establish the link between upstream erosion and downstream floodplain development. The findings highlight the importance of processes in tributary watersheds and emphasize the need for holistic management of sediment as a valuable resource.
Article
Geosciences, Multidisciplinary
Xu Chen, Suzanne McGowan, Jing Ji, Linghan Zeng, Yanmin Cao, Chunling Huang, Qianglong Qiao, Jia Liang, Lijuan Nie
Summary: The global boom in dam construction has led to a decrease in sediment loading of large rivers and their floodplains. This study examines the potential effects of hydrological regulation on floodplain ecosystems through analyzing sediment cores from five lakes in the middle Yangtze River floodplain. The results show that the sedimentary K/Al ratios decreased significantly after hydrological regulation, indicating a decline in the supply of fine-grained and K-enriched riverine particulates. This study highlights the importance of sedimentary records in understanding the impacts of past hydrological changes on sediment supply and aquatic productivity in floodplain lakes.
Article
Environmental Sciences
Kazumi Terada
Summary: This study investigated the impact of tidal changes on water quality and nutrient fluxes in a mangrove estuary in Japan. The results showed that there were differences in nutrient concentrations and fluxes between different years, and that the water and TN fluxes were influenced by rainfall.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Geology
Summer-Solstice Thomas, Jose Antonio Constantine, David Dethier, John W. Thoman, Jason Racela, Emmett Blau, Joshua D. Landis
Summary: The study found that oxbow lakes are efficient sinks for sediment-associated pollutants, with higher PCB concentrations compared to surrounding floodplains. Despite floodplains being the largest sink for PCB-laden material, oxbow lakes stored over 20% of all PCBs while occupying just over 5% of the floodplain surface area. Nearly 85% of PCB storage in oxbow lakes occurred within the first 50 meters of the floodplain, highlighting the significance of irregular oxbow production for off-channel storage of sediment-associated pollutants.
Article
Biodiversity Conservation
Andrea Funk, Damiano Baldan, Elisabeth Bondar-Kunze, Sonia Recinos Brizuela, Johannes Kowal, Thomas Hein
Summary: Connectivity is crucial for river-floodplain ecosystems and its reduction can have severe impacts on ecological functions and biodiversity. This study employed a graph theoretical approach to analyze transport pathways and their relationship with ecosystem functions in a river-floodplain system impacted by engineering structures. The results showed that sediment transport and composition are primarily driven by directional flow and connectivity, while water and nutrient exchange is dominated by seepage. This approach can be used to classify floodplain water bodies based on their essential function and prioritize management and restoration actions.
ECOLOGICAL INDICATORS
(2023)
Review
Green & Sustainable Science & Technology
Guangchun Shan, Weiguang Li, Yujuan Gao, Wenbing Tan, Beidou Xi
Summary: NH3 and N2O emissions are major forms of nitrogen loss during composting, and additives can effectively reduce these losses. However, the wide variety and complexity of additives pose challenges and potential drawbacks. Physical, chemical, and microbial additives have their own advantages and limitations in reducing NH3 and N2O emissions during composting. Future research should focus on compound additives, reusable porous materials, and the activity of microbial additives to further enhance nitrogen retention in composting.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Civil
Jingjie Lin, Michael D. Krom, Fenfang Wang, Peng Cheng, Qibiao Yu, Nengwang Chen
Summary: Storms in river-estuary systems can cause significant changes in hydrology and nutrient fluxes from land to the coastal ocean. However, the specific impacts of storms on dissolved inorganic nitrogen (DIN) in river-estuary continuum are still not well understood. This study conducted continuous observations during a storm event in the Jiulong River, China, and found that increased river discharge led to changes in particle distribution, estuarine turbidity maximum, and the levels of SPM and inorganic nitrogen. The additional DIN was mainly derived from resuspended sediments and catchment runoff.
JOURNAL OF HYDROLOGY
(2022)
Article
Energy & Fuels
Petras Punys, Antanas Dumbrauskas, Egidijus Kasiulis, Gitana Vyciene, Linas Silinis
Review
Green & Sustainable Science & Technology
Petras Punys, Egidijus Kasiulis, Algis Kvaraciejus, Antanas Dumbrauskas, Gitana Vyciene, Linas Silinis
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2017)
Review
Energy & Fuels
Petras Punys, Antanas Dumbrauskas, Algis Kvaraciejus, Gitana Vyciene
Article
Green & Sustainable Science & Technology
Petras Punys, Algis Kvaraciejus, Antanas Dumbrauskas, Linas Silinis, Bogdan Popa
Proceedings Paper
Agriculture, Multidisciplinary
Raimundas Baublys, Antanas Dumbrauskas, Ramunas Geguzis
RESEARCH FOR RURAL DEVELOPMENT 2016, VOL. 1
(2016)
Article
Water Resources
Petras Punys, Antanas Dumbrauskas, Zenonas Rimkus, Dalia Streimikiene
HOUILLE BLANCHE-REVUE INTERNATIONALE DE L EAU
(2006)