Article
Environmental Sciences
Ronald B. Souza, Margareth S. Copertino, Gilberto Fisch, Marcelo F. Santini, Walter H. D. Pinaya, Fabiane M. Furlan, Rita de Cassia M. Alves, Osmar O. Moller, Luciano P. Pezzi
Summary: This study measured the atmospheric CO2 concentrations in a salt marsh in southern Brazil and analyzed the CO2 exchange fluxes between vegetation and the atmosphere using eddy correlation techniques. The results showed that the CO2 fluxes were modulated by transient atmospheric systems and surrounding water level variations. It was found that the salt marsh acted as a CO2 sink during daytime and a CO2 source during nighttime. The seasonal changes in CO2 fluxes were influenced by sunlight, temperature, marsh inundation, winds, and plant biomass.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Yiquan Yuan, Xiuzhen Li, Zuolun Xie, Liming Xue, Bin Yang, Wenzhen Zhao, Christopher B. Craft
Summary: This study investigated the seasonal variation of carbon flux in a salt marsh in the Chongming Dongtan wetland. The results showed that the output of organic carbon in the salt marsh varied with the tidal cycle in different seasons.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Agronomy
Patryk Poczta, Marek Urbaniak, Torsten Sachs, Kamila M. Harenda, Agnieszka Klarzynska, Radoslaw Juszczak, Dirk Schuttemeyer, Bartosz Czernecki, Anna Kryszak, Bogdan H. Chojnicki
Summary: Peatlands are important in storing soil carbon for long periods of time. This study focused on assessing the CO2 balances of a temperate peatland and the factors affecting these fluxes. The peatland was found to be a CO2 sink, but with extreme variations in different years. Seasonal data showed stronger correlations with biophysical variables than annual fluxes. Additionally, warmer spring and hotter summer temperatures were found to have different impacts on net ecosystem production. The study suggests that global warming negatively affects CO2 balances in temperate peatlands.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Agronomy
Alma Vazquez-Lule, Rodrigo Vargas
Summary: This study shows that different plant phenological phases influence the exchange of CO2 and CH4 in salt marsh ecosystems. Higher CO2 uptake or emissions were observed during certain phenological phases, while CH4 emissions also varied among different phases.
AGRICULTURAL AND FOREST METEOROLOGY
(2021)
Article
Biodiversity Conservation
Thomas E. Kutcher, Kenneth B. Raposa, Charles T. Roman
Summary: Salt marshes are at increasing risk of degradation and loss, and the Salt Marsh Rapid Assessment Method (MarshRAM) provides a science-based approach to gather data and guide management strategies. The method assesses salt marsh characteristics, ecological value, disturbance, integrity, and potential for landward migration. MarshRAM data can inform restoration and conservation efforts, and our findings suggest that inundation stress and high-marsh vegetation loss are indicators of vulnerability and degradation.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Christina A. Braybrook, Neal A. Scott, Paul M. Treitz, Elyn R. Humphreys
Summary: This research investigates the variation of summer net ecosystem CO2 exchange (NEE) in the Arctic over five years, finding that growing degree days with a base of 0 degrees C had stronger predictive power for daily NEE. The interannual variability in total summer NEE was mainly attributed to the variability in gross primary production (GPP).
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Environmental Sciences
Michele L. de Oliveira, Carlos A. C. dos Santos, Gabriel de Oliveira, Madson T. Silva, Bernardo B. da Silva, John E. de B. L. Cunha, Anderson Ruhoff, Celso A. G. Santos
Summary: The spatio-temporal assessment of water and carbon fluxes in Brazil's Northeast region provides insights into the surface flux patterns in different vegetation types. The study shows that land degradation and climate impacts have led to reduced photosynthetic activity and increased vulnerability to desertification in the Caatinga biome, particularly in sparse areas. Dense Caatinga exhibits higher photosynthetic activity and greater resilience to climate effects. Compared to other biomes in the region, Caatinga has lower rates of evapotranspiration and gross primary production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
T. Watham, Hitendra Padalia, Ritika Srinet, Subrata Nandy, P. A. Verma, P. Chauhan
Summary: The study examines the dynamics of atmospheric CO2 concentration over a subtropical forest in the foothills of the northwest Himalaya using EC tower and satellite data. Results show diurnal and seasonal variations, with peak CO2 concentration in July due to forest ecosystem release, and reduced CO2 levels post-monsoon. Rainfall was identified as the key meteorological factor influencing seasonal CO2 variability. Furthermore, comparison with OCO-2 satellite data suggests differences in CO2 concentration measurements, but a strong correlation in monthly patterns. The study highlights the variability in atmospheric CO2 regulation by forests with different functional traits under similar climatic conditions.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Agronomy
Hassan Awada, Simone Di Prima, Costantino Sirca, Filippo Giadrossich, Serena Marras, Donatella Spano, Mario Pirastru
Summary: Satellite remote sensing-based surface energy balance techniques are useful for quantifying actual evapotranspiration, but continuous time series of daily crop actual evapotranspiration are more valuable in agriculture water management. The integrated modeling approach in this research successfully constructed continuous time series of daily ETc act and showed good agreement with observed dynamics.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Environmental Sciences
Thomas E. Kutcher, Kenneth B. Raposa
Summary: Tidal restoration efforts in salt marshes have led to some biological recovery, but incomplete restoration is common due to inundation stress and eutrophication. This study highlights the importance of long-term biological monitoring and the use of rapid assessment data to provide valuable context for restoration findings and guide future restoration practices.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Yunjun Yao, Zhenhua Di, Zijing Xie, Zhiqiang Xiao, Kun Jia, Xiaotong Zhang, Ke Shang, Junming Yang, Xiangyi Bei, Xiaozheng Guo, Ruiyang Yu
Summary: An operational and accurate model for estimating terrestrial latent heat of evapotranspiration (ET) across different land-cover types was developed and evaluated using ground-measured ET data collected from global FLUXNET eddy covariance (EC) sites. The results showed that the model performed reasonably well in estimating seasonal and spatial ET variability.
Article
Environmental Sciences
M. Susana Alvarado-Barrientos, Haydee Lopez-Adame, Hugo E. Lazcano-Hernandez, Javier Arellano-Verdejo, Hector A. Hernandez-Arana
Summary: This study evaluated the impact of flooding and air temperature on the CO2 exchange in a basin mangrove ecosystem, finding that under unflooded conditions, high temperatures significantly reduce CO2 uptake while increasing evapotranspiration and sensible heat flux. CO2 uptake increases with temperature and vapor pressure deficit, but declines after reaching a certain threshold.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Brian Yellen, Jonathan D. Woodruff, Hannah E. Baranes, Simon E. Engelhart, W. Rockwell Geywer, Noa Randall, Frances R. Griswold
Summary: There is concern about rising sea levels drowning salt marshes faster than they can build elevation. Little attention has been paid to how changes in inlet geometry affect estuarine tides and marshes. A storm in 1898 created a new inlet, shortening one river and lengthening another. Measurements suggest that this caused increased high tides and frequent inundation. Sediment deposition and channel widening allowed the marshes to adjust to the increased inundation and survive rapid sea level rise.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2023)
Article
Environmental Sciences
Linda K. Blum, Robert R. Christian, Donald R. Cahoon, Patricia L. Wiberg
Summary: The study in a Virginia salt marsh showed that surface elevation increases were fastest in the low-elevation zone and slowest in the high-elevation zone, with root zone expansion playing a significant role in the increase. As marshes expand, soil-forming processes shift from biogenic to minerogenic, likely in response to changing hydrologic drivers.
ESTUARIES AND COASTS
(2021)
Article
Environmental Sciences
Oksana Rybchak, Justin du Toit, Jean-Pierre Delorme, Jens-Kristian Juedt, Mari Bieri, Guy Midgley, Kanisios Mukwashi, Christian Thau, Gregor Feig, Antje Lucas-Moffat, Christian Bruemmer
Summary: This study finds that long-term resting of overutilized semi-arid vegetation in southern Africa can lead to enhanced carbon sequestration potential, even when vegetation composition has been transformed due to overutilization. However, this enhanced potential can be quickly diminished by reintroduction of grazing, even after a period of 10 years of resting. The achievement of carbon sequestration in these ecosystems is influenced by average to above-average precipitation and its distribution throughout the year, with sequestration activity mostly observed after seasonal rains during the warm season.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Manuel Helbig, James Michael Waddington, Pavel Alekseychik, Brian D. Amiro, Mika Aurela, Alan G. Barr, T. Andrew Black, Peter D. Blanken, Sean K. Carey, Jiquan Chen, Jinshu Chi, Ankur R. Desai, Allison Dunn, Eugenie S. Euskirchen, Lawrence B. Flanagan, Inke Forbrich, Thomas Friborg, Achim Grelle, Silvie Harder, Michal Heliasz, Elyn R. Humphreys, Hiroki Ikawa, Pierre-Erik Isabelle, Hiroki Iwata, Rachhpal Jassal, Mika Korkiakoski, Juliya Kurbatova, Lars Kutzbach, Anders Lindroth, Mikaell Ottosson Lofvenius, Annalea Lohila, Ivan Mammarella, Philip Marsh, Trofim Maximov, Joe R. Melton, Paul A. Moore, Daniel F. Nadeau, Erin M. Nicholls, Mats B. Nilsson, Takeshi Ohta, Matthias Peichl, Richard M. Petrone, Roman Petrov, Anatoly Prokushkin, William L. Quinton, David E. Reed, Nigel T. Roulet, Benjamin R. K. Runkle, Oliver Sonnentag, Ian B. Strachan, Pierre Taillardat, Eeva-Stiina Tuittila, Juha-Pekka Tuovinen, Jessica Turner, Masahito Ueyama, Andrej Varlagin, Martin Wilmking, Steven C. Wofsy, Vyacheslav Zyrianov
NATURE CLIMATE CHANGE
(2020)
Article
Environmental Sciences
Sarah Messenger, Javier Lloret, James N. Galloway, Anne Giblin
Summary: This paper discusses the role of research institutions and universities in reducing nitrogen emissions and proposes five low-cost strategies to help small institutions reduce nitrogen emissions. Implementing these strategies at MBL can reduce its nitrogen footprint by 7.7% without the need for additional financial input.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Agronomy
Housen Chu, Xiangzhong Luo, Zutao Ouyang, W. Stephen Chan, Sigrid Dengel, Sebastien C. Biraud, Margaret S. Torn, Stefan Metzger, Jitendra Kumar, M. Altaf Arain, Tim J. Arkebauer, Dennis Baldocchi, Carl Bernacchi, Dave Billesbach, T. Andrew Black, Peter D. Blanken, Gil Bohrer, Rosvel Bracho, Shannon Brown, Nathaniel A. Brunsell, Jiquan Chen, Xingyuan Chen, Kenneth Clark, Ankur R. Desai, Tomer Duman, David Durden, Silvano Fares, Inke Forbrich, John A. Gamon, Christopher M. Gough, Timothy Griffis, Manuel Helbig, David Hollinger, Elyn Humphreys, Hiroki Ikawa, Hiroki Iwata, Yang Ju, John F. Knowles, Sara H. Knox, Hideki Kobayashi, Thomas Kolb, Beverly Law, Xuhui Lee, Marcy Litvak, Heping Liu, J. William Munger, Asko Noormets, Kim Novick, Steven F. Oberbauer, Walter Oechel, Patty Oikawa, Shirley A. Papuga, Elise Pendall, Prajaya Prajapati, John Prueger, William L. Quinton, Andrew D. Richardson, Eric S. Russell, Russell L. Scott, Gregory Starr, Ralf Staebler, Paul C. Stoy, Ellen Stuart-Haentjens, Oliver Sonnentag, Ryan C. Sullivan, Andy Suyker, Masahito Ueyama, Rodrigo Vargas, Jeffrey D. Wood, Donatella Zona
Summary: This study evaluates the matching between flux footprints and target areas to address a major challenge in model-data integration. The researchers found that mismatches could introduce biases and advocate for footprint-awareness when using flux datasets. They propose a representativeness index based on evaluations to guide specific applications and data use.
AGRICULTURAL AND FOREST METEOROLOGY
(2021)
Article
Environmental Sciences
Kiran Upreti, Victor H. Rivera-Monroy, Kanchan Maiti, Anne Giblin, James P. Geaghan
Summary: This study evaluated denitrification rates in sediment and wetland habitats in coastal Louisiana, finding that high denitrification rates can be sustained in environments with low carbon availability as long as NO3- concentrations are high (>30 μM) and water temperature exceeds 10 degrees Celsius.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Limnology
Phaedra Budy, Casey A. Pennock, Anne E. Giblin, Chris Luecke, Daniel L. White, George W. Kling
Summary: The study found that climate change-driven disturbances in lakes can lead to increased nutrient loading, affecting ecosystem function. A fertilization experiment showed varying responses in phytoplankton chlorophyll a, dissolved oxygen, and zooplankton biomass during the fertilization period, with delayed declines in water transparency and fish abundance. This suggests that indirect effects of climate change altering nutrient inputs may impact many lakes in the future.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Geography, Physical
W. C. Daniels, J. M. Russell, C. Morrill, W. M. Longo, A. E. Giblin, P. Holland-Stergar, J. M. Welker, X. Wen, A. Hu, Y. Huang
Summary: The study of a lake record in the Beringia region suggests that during the Last Glacial Maximum, temperatures were about 3 degrees Celsius colder than the pre-industrial era, with a smaller cooling compared to other parts of the Arctic. As the deglaciation period progressed, warming in Beringia was punctuated by abrupt events that were synchronous with events seen in Greenland ice cores. The region responds more strongly to North Atlantic freshwater forcing under modern-day, open-Bering Strait conditions, with recent warming not surpassing peak Holocene summer warmth.
QUATERNARY SCIENCE REVIEWS
(2021)
Article
Environmental Sciences
Kiran Upreti, Victor H. Rivera-Monroy, Kanchan Maiti, Anne E. Giblin, Edward Castaneda-Moya
Summary: This study evaluates the effects of temperature and soil/sediment organic matter content on denitrification and DNRA rates in oligohaline wetlands. The results show that DNRA is not a major nitrogen transformation process in these regions across the Mississippi River Delta Plain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Olivia Cronin-Golomb, Joshua P. Harringmeyer, Matthew W. Weiser, Xiaohui Zhu, Nilotpal Ghosh, Alyssa B. Novak, Inke Forbrich, Cedric G. Fichot
Summary: This study developed a spectrally-resolved benthic solar irradiance model for a dynamic marsh-influenced mesotidal estuary in Massachusetts, and generated improved seagrass habitat suitability maps for guiding future restoration efforts.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Microbiology
Khashiff Miranda, Brooke L. Weigel, Emily C. Fogarty, Iva A. Veseli, Anne E. Giblin, A. Murat Eren, Catherine A. Pfister
Summary: Coastal marine macrophytes and their associated microbial communities exhibit diverse metabolic functions that may impact the biology of their hosts and contribute to carbon and nitrogen cycling in nearshore ecosystems.
Article
Environmental Sciences
Judith A. Rosentreter, Goulven G. Laruelle, Hermann W. Bange, Thomas S. Bianchi, Julius J. M. Busecke, Wei-Jun Cai, Bradley D. Eyre, Inke Forbrich, Eun Young Kwon, Taylor Maavara, Nils Moosdorf, Raymond G. Najjar, V. V. S. S. Sarma, Bryce Van Dam, Pierre Regnier
Summary: This article analyzes data from 738 observation sites and finds that coastal ecosystems have a certain absorption effect on greenhouse gases in the atmosphere, but methane and nitrous oxide emissions counteract the absorption of carbon dioxide. Southeast Asia, North America, and Africa are identified as hotspots for coastal greenhouse gas absorption.
NATURE CLIMATE CHANGE
(2023)
Article
Biotechnology & Applied Microbiology
Sherlynette Perez Castro, Elena L. Peredo, Olivia U. Mason, Joseph Vineis, Jennifer L. Bowen, Behzad Mortazavi, Anakha Ganesh, S. Emil Ruff, Blair G. Paul, Anne E. Giblin, Zoe G. Cardon
Summary: The study reveals the high diversity of sulfur-cycling microbial communities in salt marsh rhizosphere sediments, with their distribution and genomic features influenced by geographical location and plant species.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Environmental Sciences
Roxanne Marino, Melanie Hayn, Robert W. Howarth, Anne E. Giblin, Karen J. Mcglathery, Peter Berg
Summary: This study is part of a long-term research on the effects of nitrogen loading in a shallow temperate lagoon. The results show that nitrogen fixation rates associated with seagrass epiphytes are relatively high, despite the high nitrogen input from contaminated groundwater. Cyanobacteria play an important role in the epiphyte communities. The study also suggests that climatic variation contributes to inter-annual variation in nitrogen fixation rates.
Article
Ecology
A. E. Z. Bernhard, J. Beltz, A. E. P. Giblin, B. J. M. Roberts
Summary: This study examined the differences in gut microbiota between siblings with autism and typically developing siblings, identifying multiple microbial variants associated with ASD symptoms. The research also highlighted the impact of diet and lifestyle on ASD presentation, and the associations between microbiome composition and changes in reported anxiety as well as specific ASD-related behavioral characteristics.
ISME COMMUNICATIONS
(2021)
Article
Ecology
A. E. Bernhard, J. Beltz, A. E. Giblin, B. J. Roberts
Summary: iVirus 2.0 significantly expands functionality and accessibility by integrating core iVirus apps into the Department of Energy's Systems Biology KnowledgeBase, upgrading or adding 20 software tools at CyVerse, aggregating nearly 20-fold more sequence reads, and updating documentation for maximizing user interaction and contribution to infrastructure development.
ISME COMMUNICATIONS
(2021)
Article
Ecology
A. E. Bernhard, J. Beltz, A. E. Giblin, B. J. Roberts
Summary: This study found that potential nitrification rates in GoM marshes were more than 80 times higher than in NE salt marshes, with differences in abundances of AOA, comammox bacteria, and AOB between the two regions. The ratios of nitrifiers to total bacteria in NE were up to 80 times higher than in GoM, indicating differences in the relative importance of nitrifiers between the two systems.
ISME COMMUNICATIONS
(2021)
