Article
Environmental Sciences
Parsa Pouladi, Amir Reza Nazemi, Mehrsa Pouladi, Zahir Nikraftar, Mohammadreza Mohammadi, Peyman Yousefi, David J. Yu, Abbas Afshar, Antoine Aubeneau, Murugesu Sivapalan
Summary: Understanding how anthropogenic droughts impact socio-hydrological systems is crucial for studying system resilience, with a focus on Lake Urmia in Iran facing similar issues as the Aral Sea. The study identifies a paradoxical phenomenon where increasing soil salinity hasn't significantly affected vegetation cover in the basin.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Oghenemise Abirhire, John-Mark Davies, Noim Imtiazy, Kristine Hunter, Sydney Emmons, Joel Beadle, Jeff Hudson
Summary: Changes in hydro-meteorological conditions and water abstraction may lead to algal blooms in Lake Diefenbaker. The most abundant phytoplankton groups under different flow conditions were diatoms and cryptomonads. Cyanobacteria dominated during drought, potentially due to thermocline deepening and internal nutrient loading. Microcystis, a potential bloom-forming and toxin-producing genus, was dominant during drought and correlated with reduced water level, increased air temperature, and moderate wind speed. Aphanizomenon, another potential bloom-forming and toxin-producing genus, was present in both low and high flow years.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yuvraj Singh, Manish Kumar Jain
Summary: This study analyzed the water quality of Mansagar lake in Jaipur, India, finding that effluents significantly impact water quality in the rainy season, leading to an increase in COD levels. Throughout the year, parameters such as BOD and COD displayed seasonal variations, with higher pollution concentrations observed in peak summer and late winters. High turbidity and conductivity were noted in June-July, indicating increased pollution levels in the lake's remaining water.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Environmental Sciences
Pengfei Hou, Fengqin Chang, Lizeng Duan, Yang Zhang, Hucai Zhang
Summary: The study analyzed the seasonal dynamics and vertical stratification of multiple parameters in Lake Chenghai, Northern Yunnan. The results showed that water quality was stable in winter and spring, but substantial changes occurred in Chl-a content and pH value as the lake water became stratified in summer and autumn. The thermal stratification structure had a significant impact on changes in DO, pH, and Chl-a.
Article
Environmental Sciences
Damaris Leiva-Tafur, Malluri Gonas, Lorenzo Culqui, Carlos Santa Cruz, Jesus Rascon, Manuel Oliva-Cruz
Summary: This study evaluated the water quality of Lake Pomacochas in the north of Peru, identifying potential cadmium and lead pollution in the water, while no potential risk was found in the sediments.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Fang Zheng, Yiqun Gan, Liu Yang, Jing Wu
Summary: Quantifying the impacts of climate change on evapotranspiration (ET) and gross primary production (GPP) in the Dongting Lake Basin is crucial for assessing water scarcity and implementing sustainable development strategies. This study used various analysis methods to analyze the influence of climate change on eco-hydrological parameters in the region. The results showed that temperature and precipitation were the main drivers of ET and GPP enhancement.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
Adi Barocas, Claudia Vega, Alejandro Alarcon Pardo, Julio M. Araujo Flores, Luis Fernandez, Jessica Groenendijk, Jessica Pisconte, David W. Macdonald, Ronald R. Swaisgood
Summary: Driven by global gold price surges and additional socio-economic factors, artisanal small-scale gold mining (ASGM) in the Global South is increasing, resulting in significant mercury (Hg) emissions into the air and fresh-water. This study examined the factors influencing mercury accumulation in fish in oxbow lakes in Peru's Madre de Dios region and found that Hg levels were associated with ASGM activities, water quality, and fish trophic level. The results highlight the risks of high Hg exposure to human and top carnivore populations in neotropical ecosystems undergoing degradation due to ASGM.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
F. Tufaner
Summary: This study provides a comprehensive assessment of the water quality of cildir Lake from a basin-scale perspective. It reveals that the lake is polluted to some extent, with most of the pollution coming from creeks near settlements. Nonlinear regression models have been developed to predict the total organic carbon concentration in order to monitor lake pollution.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Basil Kraft, Martin Jung, Marco Koerner, Sujan Koirala, Markus Reichstein
Summary: This study presents a hybrid approach to global hydrological modeling that combines machine learning methods with physical principles. The results show that the hybrid model can reproduce key patterns of the global water cycle and provide insights into the physical responses. It offers a new data-driven perspective on modeling the global hydrological cycle, complementing existing global modeling frameworks.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2022)
Article
Engineering, Civil
Pei Li, Li Ren
Summary: Quantitatively assessing the practicality and sustainability of saline groundwater for irrigation at the regional level could provide a valuable reference for macro decision-making and management. The study applied the SWAP-WOFOST model in the North China Plain to simulate different saline water irrigation scenarios and analyze their effects on crop yield, water productivity, and soil water and salt balances. The results can support decision-making related to developing and using shallow saline groundwater for irrigation.
JOURNAL OF HYDROLOGY
(2021)
Article
Green & Sustainable Science & Technology
Nikolas Galli, Jampel Dell'Angelo, Ilenia Epifani, Davide Danilo Chiarelli, Maria Cristina Rulli
Summary: This article examines the role of water resources in conflict and how water availability and demand influence the likelihood of violent conflict, focusing on the Lake Chad Basin. The study combines hydrological and biophysical factors with socio-political processes to explore the potential for conflict. The findings highlight the complex interdependencies between water scarcity and violence, emphasizing the need for a comprehensive understanding of the socio-hydrological complexities.
NATURE SUSTAINABILITY
(2022)
Article
Environmental Sciences
Pingbo Zheng, Huan Yang, Hucai Zhang, Caiming Shen, Huiling Sun
Summary: This study investigates the distribution and origin of hydroxylated isoprenoid glycerol dialkyl glycerol tetraethers (OH-GDGTs) in Lake Fuxian, southwestern China. The relative abundance and ring indices of OH-GDGTs in the lake's hypolimnion were significantly influenced by dissolved oxygen (DO) and pH, with DO regulating the physiological functions of archaea. The values of %OH-GDGTs in suspended particulate matter were positively correlated with DO and negatively correlated with pH, while the values of RI-OH exhibited an inverse relationship with DO and positive correlation with pH levels. The OH-GDGTs in surface sediments were found to be similar to those in the water column, suggesting their potential as proxies for lake-level reconstructions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
P. E. Todhunter
Summary: Devils Lake in northeast North Dakota has experienced catastrophic flooding since 1993 due to a transition to a sustained wetter climate. The primary hydrological factors include a nonlinear precipitation-runoff relationship following a long-term drought and a change in the lake water budget dominated by surface runoff input.
Article
Multidisciplinary Sciences
Rosanna Margalef-Marti, Mathieu Sebilo, Aubin Thibault De Chanvalon, Pierre Anschutz, Celine Charbonnier, Beatrice Lauga, Ivan Gonzalez-Alvarez, Emmanuel Tessier, David Amouroux
Summary: The sulphur cycle plays a crucial role in the distribution of nutrients, but its characteristics in saline endorheic lakes still require further exploration. A study of Gallocanta Lake in Spain reveals that the geological background constrains sulphur cycling, resulting in high sulphate concentrations in the lake bed. The occurrence of bacterial sulphate reduction near the water-sediment interface prevents methane production and release, which is beneficial in the context of global warming.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Civil
K. Raczynski, J. Dyer
Summary: Droughts often exhibit clear temporal patterns, especially in regions with defined wet or dry seasons. Recognizing and quantifying these patterns is crucial for diagnosing current and future drought probabilities, particularly in the context of climate change.
JOURNAL OF HYDROLOGY
(2023)
Review
Biochemistry & Molecular Biology
Peter Borbely, Anna Gasperl, Tamas Palmai, Mohamed Ahres, Muhammad Ahsan Asghar, Gabor Galiba, Maria Mueller, Gabor Kocsy
Summary: Both light intensity and spectrum affect photosynthesis and the formation of reactive oxygen species. Changes in light conditions play a major role in the adjustment of metabolism. Understanding the redox control of metabolic pathways and molecular mechanisms can contribute to more efficient crop production in the future.
Review
Marine & Freshwater Biology
Viktoria B-Beres, Csilla Stenger-Kovacs, Krisztina Buczko, Judit Padisak, Geza B. Selmeczy, Edina Lengyel, Kalman Tapolczai
Summary: Diatoms are a unique group of algae that contribute to human well-being through their various services. They provide supporting services such as photosynthesis and sediment formation, regulating services like oxygen production and climate control, and provisioning services through tangible products and technologies derived from diatoms. Furthermore, diatoms are essential for studying past and present environments, as well as inspiring art and education.
Review
Marine & Freshwater Biology
Edina Lengyel, Sara Barreto, Judit Padisak, Csilla Stenger-Kovacs, Diana Lazar, Krisztina Buczko
Summary: This review highlights the important ecosystem services provided by silica-scaled chrysophytes in aquatic habitats, including their roles in primary production, nutrient cycling, biogeochemical cycling, sediment formation, climate regulation, air quality maintenance, biological control, water purification, environmental monitoring, biochemical production, provision of genetic resources, and cultural services. Despite being one of the least studied groups of algae, they have shown to have significant benefits and potential opportunities for human well-being. Therefore, further research on silica-scaled chrysophytes is emphasized as crucial for human well-being.
Article
Plant Sciences
Mohamed Ahres, Tamas Palmai, Terezia Kovacs, Laszlo Kovacs, Jozef Lacek, Radomira Vankova, Gabor Galiba, Peter Borbely
Summary: This study investigates the additional effects of blue light on freezing tolerance enhancement in winter barley under far-red enriched white light. The results show that blue light supplementation further improves frost hardiness and alters lipid composition in plant cell membranes.
Article
Multidisciplinary Sciences
Jasim M. Salman, Ruqayah Ali Grmasha, Csilla Stenger-Kovacs, Edina Lengyel, Osamah J. Al-sareji, Ahed M. A. AR. AL-Cheban, Monika Meiczinger
Summary: The study investigates the variations in biological response of Chlorella vulgaris to different Mg2+ concentrations. The growth curve, photosynthesis pigments, total protein, carbohydrates, and enzymatic parameters were examined. The results show that 5 mg/L Mg2+ is optimum for biomass production, while 15 mg/L Mg2+ is optimum for protein and carbohydrate production.
Article
Environmental Sciences
Ruqayah Ali Grmasha, Csilla Stenger-Kovacs, Baydaa Abdul Hussein Bedewy, Osamah J. Al-sareji, Raed A. Al-Juboori, Monika Meiczinger, Khalid S. Hashim
Summary: Recent battles against ISIS in Iraq led to the destruction or severe damage of several oil refineries, resulting in the release and accumulation of hazardous chemicals, such as polycyclic aromatic hydrocarbons (PAH), into the environment. A comprehensive 16 PAHs measurements campaign was conducted over six months near the oil refineries along the Tigris River and its estuaries. The findings revealed high concentrations of PAHs in water and sediment samples, with potential adverse health effects, including cancer.
ENVIRONMENTAL RESEARCH
(2023)
Review
Marine & Freshwater Biology
C. Stenger-Kovacs, V. B. Beres, K. Buczko, J. T. Al-Imari, D. Lazar, J. Padisak, E. Lengyel
Summary: Salinization is a major global environmental issue that has significant consequences for aquatic ecosystems. Understanding the impact of salinity on the physiological and molecular mechanisms of diatoms is crucial for studying their ecology and evolution. Existing studies have shown that salt stress can significantly affect various aspects of diatoms, including photosynthetic activities, pigment contents, growth rate, metabolism, and toxin synthesis. Diatoms have the ability to acclimate to salinity through adjusting turgor pressure, ion homeostasis, and producing compatible solutes. Morphological changes and abnormal forms also indicate the complex effects of salinity and other stress factors. However, there is a lack of knowledge about the molecular background and long-term adaptation of diatom species to salinity.
Review
Marine & Freshwater Biology
C. Stenger-Kovacs, V. B. Beres, K. Buczko, K. Tapolczai, J. Padisak, G. B. Selmeczy, E. Lengyel
Summary: Both natural and anthropogenic processes can cause an increase in the salinity of surface waters. The knowledge about the ecological consequences of salinization on diatoms, especially in microbiota, is limited. Conductivity and ion composition are important variables shaping diatom communities, and secondary salinization can mask regional differences. Salinization induces the spread of marine and brackish species into freshwaters, as well as the spread of freshwater species tolerating elevated conductivity and specific ions.
Article
Environmental Sciences
Diana Lazar, Eszter Takacs, Maria Mortl, Szandra Klatyik, Attila Barocsi, Laszlo Kocsanyi, Sandor Lenk, Laszlo Domjan, Gabor Szarvas, Edina Lengyel, Andras Szekacs
Summary: Project Aquafluosense aimed to develop prototypes for a modular fluorescence-based instrumental setup for in situ measurement of major water quality parameters. A fluorometer was developed for algal density estimation based on the fluorescent excitation of chlorophyll. The experimental results showed strong and positive correlation with conventional methods and demonstrated the applicability of the developed fluorometer in algal toxicity screening.
Article
Environmental Sciences
Edina Lengyel, Csilla Stenger-Kovacs, Gergely Boros, Tiba Jassam Kaison Al-Imari, Zoltan Novak, Gabor Bernat
Summary: This research investigates the effects of different climate change scenarios on the structure and function of the phytobenthos community in shallow lakes. The study finds that an increase in temperature will significantly impact the benthic algal community, altering its species and trait composition, decreasing diversity, and increasing variability. Further temperature increase will result in more drastic alterations in freshwater phytobenthos, including changes in species composition, trait composition, and functional diversity.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Civil
Arfan Arshad, Ali Mirchi, Javier Vilcaez, Muhammad Umar Akbar, Kaveh Madani
Summary: High-resolution, continuous groundwater data is crucial for adaptive aquifer management. This study presents a predictive modeling framework that incorporates covariates and existing observations to estimate groundwater level changes. The framework outperforms other methods and provides reliable estimates for unmonitored sites. The study also examines groundwater level changes in different regions and highlights the importance of effective aquifer management.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Lihua Chen, Jie Deng, Wenzhe Yang, Hang Chen
Summary: A new grid-based distributed karst hydrological model (GDKHM) is developed to simulate streamflow in the flood-prone karst area of Southwest China. The results show that the GDKHM performs well in predicting floods and capturing the spatial variability of karst system.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Faruk Gurbuz, Avinash Mudireddy, Ricardo Mantilla, Shaoping Xiao
Summary: Machine learning algorithms have shown better performance in streamflow prediction compared to traditional hydrological models. In this study, researchers proposed a methodology to test and benchmark ML algorithms using artificial data generated by physically-based hydrological models. They found that deep learning algorithms can correctly identify the relationship between streamflow and rainfall in certain conditions, but fail to outperform traditional prediction methods in other scenarios.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Yadong Ji, Jianyu Fu, Bingjun Liu, Zeqin Huang, Xuejin Tan
Summary: This study distinguishes the uncertainty in drought projection into scenario uncertainty, model uncertainty, and internal variability uncertainty. The results show that the estimation of total uncertainty reaches a minimum in the mid-21st century and that model uncertainty is dominant in tropical regions.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Z. R. van Leeuwen, M. J. Klaar, M. W. Smith, L. E. Brown
Summary: This study quantifies the effectiveness of leaky dams in reducing flood peak magnitude using a transfer function noise modelling approach. The results show that leaky dams have a significant but highly variable impact on flood peak magnitude, and managing expectations should consider event size and type.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Zeda Yin, Yasaman Saadati, M. Hadi Amini, Linlong Bian, Beichao Hu
Summary: Combined sewer overflows pose significant threats to public health and the environment, and various strategies have been proposed to mitigate their adverse effects. Smart control strategies have gained traction due to their cost-effectiveness but face challenges in balancing precision and computational efficiency. To address this, we propose exploring machine learning models and the inversion of neural networks for more efficient CSO prediction and optimization.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Qimou Zhang, Jiacong Huang, Jing Zhang, Rui Qian, Zhen Cui, Junfeng Gao
Summary: This study developed a N-cycling model for lowland rural rivers covered by macrophytes and investigated the N imports, exports, and response to sediment dredging. The findings showed a considerable N retention ability in the study river, with significant N imports from connected rivers and surrounding polders. Sediment dredging increased particulate nitrogen resuspension and settling rates, while decreasing ammonia nitrogen release, denitrification, and macrophyte uptake rates.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Xue Li, Yingyin Zhou, Jian Sha, Man Zhang, Zhong-Liang Wang
Summary: High-resolution climate data is crucial for predicting regional climate and water environment changes. In this study, a two-step downscaling method was developed to enhance the spatial resolution of GCM data and improve the accuracy for small basins. The method combined medium-resolution climate data with high-resolution topographic data to capture spatial and temporal details. The downscaled climate data were then used to simulate the impacts of climate change on hydrology and water quality in a small basin. The results demonstrated the effectiveness of the downscaling method for spatially differentiated simulations.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Tongqing Shen, Peng Jiang, Jiahui Zhao, Xuegao Chen, Hui Lin, Bin Yang, Changhai Tan, Ying Zhang, Xinting Fu, Zhongbo Yu
Summary: This study evaluates the long-term interannual dynamics of permafrost distribution and active layer thickness on the Tibetan Plateau, and predicts future degradation trends. The results show that permafrost area has been decreasing and active layer thickness has been increasing, with an accelerated degradation observed in recent decades. This has significant implications for local water cycle processes, water ecology, and water security.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Chi Zhang, Xu Zhang, Qiuhong Tang, Deliang Chen, Jinchuan Huang, Shaohong Wu, Yubo Liu
Summary: Precipitation over the Tibetan Plateau is influenced by systems such as the Asian monsoons, the westerlies, and local circulations. The Indian monsoon, the westerlies, and local circulations are the main systems affecting precipitation over the entire Tibetan Plateau. The East Asian summer monsoon primarily affects the eastern Tibetan Plateau. The Indian monsoon has the greatest influence on precipitation in the southern and central grid cells, while the westerlies have the greatest influence on precipitation in the northern and western grid cells. Local circulations have the strongest influence on the central and eastern grid cells.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Manuel Almeida, Antonio Rodrigues, Pedro Coelho
Summary: This study aimed to improve the accuracy of Total Phosphorus export coefficient models, which are essential for water management. Four different models were applied to 27 agroforestry watersheds in the Mediterranean region. The modeling approach showed significant improvements in predicting the Total Phosphorus diffuse loads.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Yutao Wang, Haojie Yin, Ziyi Wang, Yi Li, Pingping Wang, Longfei Wang
Summary: This study investigated the distribution and transformation of dissolved organic nitrogen (DON) in riverbed sediments impacted by effluent discharge. The authors found that the spectral characteristics of dissolved organic matter (DOM) in surface water and sediment porewater could be used to predict DON variations in riverbed sediments. Random forest and extreme gradient boosting machine learning methods were employed to provide accurate predictions of DON content and properties at different depths. These findings have important implications for wastewater discharge management and river health.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Saba Mirza Alipour, Kolbjorn Engeland, Joao Leal
Summary: This study assesses the uncertainty associated with 100-year flood maps under different scenarios using Monte Carlo simulations. The findings highlight the importance of employing probabilistic approaches for accurate and secure flood maps, with the selection of probability distribution being the primary source of uncertainty in precipitation.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Janine A. de Wit, Marjolein H. J. van Huijgevoort, Jos C. van Dam, Ge A. P. H. van den Eertwegh, Dion van Deijl, Coen J. Ritsema, Ruud P. Bartholomeus
Summary: The study focuses on the hydrological consequences of controlled drainage with subirrigation (CD-SI) on groundwater level, soil moisture content, and soil water potential. The simulations show that CD-SI can improve hydrological conditions for crop growth, but the success depends on subtle differences in geohydrologic characteristics.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Constantin Seidl, Sarah Ann Wheeler, Declan Page
Summary: Water availability and quality issues will become increasingly important in the future due to climate change impacts. Managed Aquifer Recharge (MAR) is an effective water management tool, but often overlooked. This study analyzes global MAR applications and identifies the key factors for success, providing valuable insights for future design and application.
JOURNAL OF HYDROLOGY
(2024)
