Article
Geography, Physical
Lucas Gerardo Dominguez Ruben, Ricardo Nicolas Szupiany, Carlos Ramonell, Micaela Ru, Marcelo Horacio Garcia
Summary: This study provides a comprehensive and novel analysis approach combining satellite imagery treatment and aerial photographs with detailed field measurements to describe the deltaic processes and the main variables that control the evolution of the major fluvial-lacustrine delta along the Middle Parana River floodplain. The results show that factors such as local geology, hydro-sedimentological behavior of channels, sediment transport modes, and vegetation growth influence the delta formation and floodplain construction in this particular environment.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Environmental Sciences
Natalia Soledad Morandeira, Matias Ernesto Barber, Francisco Matias Grings, Frank Ahern, Patricia Kandus, Brian Brisco
Summary: This study used full polarimetric RADARSAT-2 scenes to investigate the impact of double-bounce scatter in wetland ecosystems. The results showed that factors such as different incident angles and vegetation biomass play a significant role in radar backscattering variation.
Article
Environmental Sciences
Clara Mitchell, Maria Cecilia Quaglino, Victoria Maria Posner, Silvia Eda Arranz, Andres Angel Sciara
Summary: Plastic pollution is a serious issue in the Rosario area, with city shores significantly more polluted than wetland shores. The food and beverage industry packaging is the most frequent macroplastic found, while the majority of meso- and microplastics are white/transparent, increasing the likelihood of ingestion by fish and invertebrates. The study highlights the ecological relevance of secondary microplastics, particularly fibers, in the riverine beaches next to Rosario city.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Health Care Sciences & Services
John C. Matulis, Rozalina McCoy, Stephen K. Liu
Summary: In modern primary care practice, clinicians face challenges in managing increasing volumes of non-visit care (NVC). This can lead to cognitive overload, distraction, and dissatisfaction. To address this, a holistic approach to managing NVC systems is proposed, with emphasis on controlling inputs, defining workflows and roles, improving the electronic health record interface, and optimizing primary care teams. This framework has the potential to improve productivity, care quality, and clinician work experience.
JOURNAL OF GENERAL INTERNAL MEDICINE
(2023)
Article
Public Administration
B. Guy Peters, Carmine Bianchi
Summary: Patronage appointments in government are a major obstacle to developing more effective administrative systems, especially for countries in Latin America and Africa. While there is a significant amount of literature on patronage, there is limited research on the dynamics of transitioning from patronage to merit-based systems.
AMERICAN REVIEW OF PUBLIC ADMINISTRATION
(2023)
Article
Agronomy
Yunpeng Sun, Xiaobing Chen, Yongming Luo, Dan Cao, Hongyu Feng, Xin Zhang, Rongjiang Yao
Summary: Irrigation plays a crucial role in global agriculture, contributing to 36% of food production. The quality of irrigation water is important for crop growth and food safety. This study examined agricultural water resources in the Yellow River Delta and assessed their quality using six evaluation methods. The results showed that the Yellow River water is suitable for irrigation or unconventional water utilization, but high levels of Na+ and Cl- pose a primary concern. Rainfall also supplements the water resources in this region. Therefore, implementing saline water irrigation and salt-tolerant crop cultivation can help improve coastal agriculture in the Yellow River Delta.
Article
Ecology
Maira Patricia Gayol, Natalia Soledad Morandeira, Eliana Belen Gonzalez, Patricia Kandus
Summary: This study investigated the relationship between macrophyte community structure and environmental features in the Lower Parana River floodplain, revealing that water ammonium and nitrate concentrations, turbidity, and flood frequency directly affected macrophyte assemblages. Connectivity between shallow lakes and watercourses influenced their physical and chemical features, while the dynamics of shallow lakes were associated with flood frequency, indirectly impacting macrophyte composition.
FRESHWATER BIOLOGY
(2022)
Article
Ecology
Horacio Sirolli, Andriy Bazylenko, Mariano Ernesto Ramello
Summary: The hydrological regime has an impact on wetland species germination, with longer flood durations resulting in reduced germination for ligneous species and increased germination for herbaceous species. The results have implications for predicting anthropic impacts and ecological restoration of wetlands.
Article
Environmental Sciences
Fan Zhang, Gui Jin, Gang Liu
Summary: The study found that virtual water trade in the Yellow River Delta exacerbates water scarcity issues, with exports exceeding imports, particularly in the agricultural sector. Recommendations include implementing a virtual water trade strategy, reducing water exports, and implementing an effective virtual water compensation policy.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Sabina Llamazares Vegh, Fernanda Biole, Marta Bavio, Pamela Tripodi, Adolfo F. Gil, Alejandra V. Volpedo
Summary: This study assessed the concentration, bioconcentration, and bioaccumulation of ten trace elements in juvenile fishes in the Lower Parana River. The results showed that all studied species bioaccumulate certain elements and that feeding habits determine trace element concentrations, with significant differences observed between trophic guilds. Further studies are necessary to understand differential behavior between different species within the aquatic web, particularly in the crucial nursery area of the Parana floodplain.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Ecology
Virginia M. Quiroga, Ana Laura Ronchi-Virgolini, Rodrigo E. Lorenzon, Martjan Lammertink
Summary: Research findings show that environmental factors, such as land cover diversity and open water surface area, influence the assemblages of waterbirds, with non-protected areas having a larger open water surface area contributing to higher species richness and abundance of waterbirds compared to protected areas. During floods, the protected area maintained high waterbird abundance due to the higher proportion of trees and aquatic vegetation, providing perches and foraging sites.
Article
Geosciences, Multidisciplinary
Oscar Pedersen, Ernesto Brunetto, Daniela M. Krohling, Maria BelenThalmeier, Maria Cecilia Zalazar
Summary: The study of paleofloods and drainage paleostage is important in assessing flood-prone areas and providing pre-instrumental and historical data. This article focuses on the sedimentological evidence of past floods in the Late Holocene sediments of the Northern Salado River in Argentina. Through the use of geomorphology, geodetics, and geophysical information, the authors were able to identify palaeoflood indicators and simulate extreme flood scenarios. The results showed that the estimated discharges associated with the inferred palaeofloods were significantly higher than historically documented and instrumentally measured events.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2022)
Article
Environmental Sciences
Sabina Llamazares Vegh, Fernanda Biole, Alejandra V. Volpedo
Summary: The study shows that four commercial fish species in the floodplain wetlands of the lower Parana River accumulate elements from water and sediment to varying degrees, with seasonal variations and fish size affecting element concentrations.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Meteorology & Atmospheric Sciences
Hanqing Kang, Bin Zhu, Xiaohui Liu, Shuangshuang Shi, Xuewei Hou, Wen Lu, Shuqi Yan, Chen Pan, Yu Chen
Summary: This study found that most haze events in the Yangtze River Delta in autumn and winter were associated with cold frontal passages. During cold front episodes, the transport of PM2.5 mass from the North China Plain was 10-15 times higher compared to noncold front periods. Both unmanned aerial vehicle sounding and model simulation indicated a stronger and faster upper-level transport of PM2.5 than at ground level during cold front passage.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Environmental Sciences
Nicolas Garello, Martin C. M. Blettler, Luis A. Espinola, Karl M. Wantzen, Daniel Gonzalez-Fernandez, Stephane Rodrigues
Summary: Plastic debris in beach sediments of a large river is influenced by natural hydrological fluctuations and wind intensity, with water flow having a greater capacity for remobilization and transport than wind. The most abundant plastic items found include foam, hard plastic, film, fishing line fragments, as well as fishing line pieces and cigarette filters typically discarded by beach users. The study suggests that the density of macroplastic items is highly correlated to the density of mesoplastic items, serving as a surrogate for further estimations in mitigation strategies.
ENVIRONMENTAL POLLUTION
(2021)
