Article
Engineering, Civil
Dipesh Nepal, Prem B. Parajuli, Ying Ouyang, S. D. Filip To, Nuwan Wijewardane
Summary: This study examines the hydrology and water quality modeling in a watershed with the introduction of multi-year land use and land cover (LULC) input. The results show that the dynamic LULC input improves the performance of the model compared to the static LULC input, allowing for a more accurate analysis of the effects of historical LULC change. Additionally, agricultural management operations enable a more realistic simulation of runoff, sediments, total nitrogen, and total phosphorus.
JOURNAL OF HYDROLOGY
(2023)
Article
Multidisciplinary Sciences
Tamene Adugna Demissie
Summary: This study evaluates the impact of climate change on hydrological components of Gilgel Gibe-1 using ensemble climate models. The models perform well in simulating rainfall and temperature. The future projections indicate an increase in rainfall and temperature in the study area. The calibrated SWAT model shows an expected increase in surface runoff and sediment yield.
Article
Green & Sustainable Science & Technology
Warda Panondi, Norihiro Izumi
Summary: The study found that climate change has led to an increase in precipitation and temperatures in the Pulangi River Basin, resulting in higher sediment yield and runoff, exacerbating the threat of floods and soil erosion.
Article
Environmental Sciences
M. B. Hailu, S. K. Mishra, S. K. Jain, V. P. Singh
Summary: Erosion is a significant problem caused by land cover change and inadequate land use worldwide. Soil conservation is a crucial solution to this issue, but it is challenging to implement in large basins without significant investment, especially for developing nations. Identifying erosion-prone regions and implementing necessary remedial measures are important for reducing investment costs and improving work efficiency.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Mukand S. Babel, Miyuru B. Gunathilake, Manoj K. Jha
Summary: This study evaluated various EbA measures using the SWAT model in a small forested watershed in Thailand, finding that a combined scenario of reforestation, grassed waterways, and filter strips could achieve the maximum reduction in sediment yield.
Article
Geosciences, Multidisciplinary
Pingping Yang, Rui Li, Zaike Gu, Li Qin, Tao Song, Zhongxian Liu, Jiayong Gao, Jiang Yuan
Summary: Few studies have focused on long-term localized runoff and sediment yield in karst areas in southwest China. This study investigated the rainfall, runoff, and sediment yields in a small watershed and classified erosive rainfall events into three types based on duration, rainfall depth, and maximum intensity. The results showed that pattern B had the greatest impact on runoff and sediment yield in the watershed.
Article
Water Resources
F. Z. Echogdali, S. Boutaleb, S. Taia, M. Ouchchen, M. Id-Belqas, R. B. Kpan, M. Abioui, J. Aswathi, K. S. Sajinkumar
Summary: Increased sedimentation reduces dam efficiency by decreasing storage capacity. This study used the SWAT model to estimate sediment production and identify critical sediment source areas in the Tata basin. The model was calibrated and validated, showing good agreement with measured flow data. The annual sediment yield ranged from 0 to 11 t/ha/y, with downstream areas generating more sediment due to increased surface runoff and other basin characteristics.
APPLIED WATER SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Mihret Dananto, Alemu O. Aga, Petros Yohannes, Lamiso Shura
Summary: This study used the SWAT model to assess surface water potential and identify erosion hotspot areas in the Gidabo watershed in Ethiopia. The study also developed soil conservation scenarios and found that terracing was the most effective measure to reduce sediment yield.
Article
Agronomy
Dipesh Nepal, Prem B. Parajuli
Summary: This research developed a watershed-scale model and identified high sediment yield areas in the Big Sunflower River Watershed. The efficiency of three best management practices (BMPs) and their combinations in reducing sediment yield was investigated. Results showed that grassed waterways had the highest sediment yield reduction potential, followed by vegetative filter strips and grade stabilization structures.
Article
Environmental Sciences
Bekir Cem Avci, Erdal Kesgin, Masume Atam, Remziye Ilayda Tan
Summary: Climate change and agricultural activities are major sources of stress on the natural environment and water resources. This study investigates the effects of climate change and different agricultural best management practices on sediment loads in the North Aegean Basin in Turkiye, using the SWAT model. The results show that climate change and BMPs can reduce sediment yields and contribute to sustainable watershed management. This research provides valuable information for decision-makers.
Article
Environmental Sciences
Mahboobeh Fallah, Hosseinali Bahrami, Hossein Asadi
Summary: Soil erosion is a major threat to soil health, natural resources, and sustainable agriculture. This study assessed the spatial-temporal distribution of annual soil loss and sediment yield in the Navroud watershed using remote sensing data and modeling techniques. The results showed that the RUSLE and SATEEC models had low performance when using only the rainfall erosivity factor (R) in simulating soil loss (SL), but improved when the total rainfall-runoff erosivity (TR) factor was used. The use of the snowmelt-runoff erosivity factor (SR) also improved the models' performance. These findings emphasize the importance of considering the SR factor in modeling and implementing effective conservation practices in mountainous regions.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Multidisciplinary Sciences
Negash Tessema Roba, Asfaw Kebede Kassa, Dame Yadeta Geleta, Arus Edo Harka
Summary: This study estimated sediment yield and streamflow in the Dawe River watershed, prioritizing catchment sub-watersheds for conservation planning. Statistical methods were used to evaluate the performance of the SWAT model in estimating streamflow and sediment output, with higher sediment output rates observed in agricultural lands with specific soil types and gradients. The implementation of best sediment management scenarios resulted in significant reductions in sediment yield, emphasizing the importance of adopting effective conservation strategies for sediment reduction in the watershed.
Article
Green & Sustainable Science & Technology
Melese Baye Hailu, S. K. Mishra, Sanjay K. Jain
Summary: Soil erosion is a global concern that has negative impacts on agriculture and dam reservoir storage capacity. Developing effective land management strategies in large watersheds is difficult due to high soil conservation expenditure. This study used the Soil and Water Assessment Tools model to identify vulnerable areas for erosion and found that six subbasins in the Tekeze watershed require urgent attention. The findings can guide land managers in reducing soil erosion and enhancing agricultural productivity.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Environmental Sciences
Mulugeta Admas, Assefa M. M. Melesse, Brook Abate, Getachew Tegegne
Summary: This study evaluated the best management practices to reduce soil erosion and sediment load into a dam reservoir. The results showed that implementing BMPs had a positive impact on reducing runoff, soil loss, and sediment yield.
Article
Environmental Sciences
Xinzhong Du, Monireh Faramarzi, Junyu Qi, Qiuliang Lei, Hongbin Liu
Summary: Dissolved organic carbon (DOC) plays a significant role in regional and global carbon cycles and serves as a crucial indicator of surface water quality. Understanding the fate and transport of DOC in watersheds and its pathways is essential. By incorporating DOC load from glacier melt runoff into a watershed-scale organic carbon model, we simulated periodic daily DOC load in the upper Athabasca River Basin (ARB) in western Canada. The calibrated model performed well in simulating daily DOC load, with uncertainties mainly due to underestimation of peak loads. Sensitivity analysis revealed that DOC production in soil layers, DOC transport on soil surfaces, and reactions in the stream system control the fate and transport of DOC load in the upper ARB. Our study showed that the terrestrial sources contributed the most to the DOC load, and the stream system acted as a negligible sink in the upper ARB. Rainfall-induced surface runoff was the major pathway for DOC transport, while glacier melt runoff accounted for a negligible portion of the total DOC load. Additionally, snowmelt-induced surface runoff and lateral flow contributed equally to DOC load as groundwater flow. This study provides valuable insights into DOC dynamics and sources in a cold region watershed, as well as the contribution of different hydrological pathways to DOC load.
ENVIRONMENTAL POLLUTION
(2023)
Article
Agronomy
Walid Sadok, Remy Schoppach, Michel E. Ghanem, Claudio Zucca, Thomas R. Sinclair
EUROPEAN JOURNAL OF AGRONOMY
(2019)
Article
Environmental Sciences
Gregor Luetzenburg, Meriel Jennifer Bittner, Aleix Calsamiglia, Chris S. Renschler, Joan Estrany, Ronald Poeppl
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Chris S. Renschler, Han Zhang
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Alexandra Tiefenbacher, Gabriele Weigelhofer, Andreas Klik, Matthias Pucher, Jakob Santner, Walter Wenzel, Alexander Eder, Peter Strauss
Article
Geography, Physical
Tomas Laburda, Josef Krasa, David Zumr, Jan Devaty, Michal Vrana, Nives Zambon, Lisbeth Lolk Johannsen, Andreas Klik, Peter Strauss, Tomas Dostal
Summary: Understanding the impact of rain characteristics on soil disturbance through splash erosion is crucial. Photogrammetric approaches were used to supplement splash cup experiments, revealing a linear correlation between soil consolidation and splash erosion. The best correlation between soil volume change and rainfall parameters was found with the maximum 30-minute intensity, showing the influence of clay content on soil behavior.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Water Resources
Gunther Liebhard, Andreas Klik, Christine Stumpp, Reinhard Nolz
Summary: Stable isotope techniques combined with weighing lysimeters and soil water measurements can be used to investigate the partitioning of evaporation and transpiration. This study modified a laboratory methodology for field applications and successfully calculated the evaporation and transpiration rates of soybean under natural conditions. The results were consistent with numerical modeling and literature values, confirming the applicability of the modified methodology for partitioning evapotranspiration in the field.
HYDROLOGICAL SCIENCES JOURNAL
(2022)
Article
Environmental Sciences
Han Zhang, Chris S. Renschler, Mary H. Nichols, Mark A. Nearing
Summary: This study utilized the WEPP model to predict soil erosion and deposition within nested semi-arid watersheds, improving the accuracy of soil redistribution predictions by adjusting channel parameters and comparing observed vs. simulated data. Soil redistribution predictions saw enhancement as topographic data resolution increased, with the best results achieved at 1m resolution without altering key model parameters derived at the watershed scale.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
Peng Tian, Likun Liu, Xiaojing Tian, Guangju Zhao, Andreas Klik, Ruidong Wang, Xiaoyan Lu, Xingmin Mu, Yunpeng Bai
Summary: This study investigated the spatial-temporal variation of sediment load in the Wei River basin and found a significant decrease in sediment load over the past six decades. The study also identified abrupt changes in sediment load in the mid-1990s, which were attributed to soil conservation measures. Vegetation changes and rainfall variability were identified as important factors influencing runoff and sediment load changes. The findings of this study can be useful for regional soil conservation planning.
Article
Geography, Physical
Tomoki Oda, Norifumi Hotta, Satoru Miura, Izuki Endo, Keitaro Tanoi, Chris S. Renschler, Nobuhito Ohte
Summary: This study observed the spatial distribution of Cs-137 in a deciduous forest hillslope in Fukushima and used a mass balance model to explain its formation. The results showed that Cs-137 activity concentration was significantly higher in the downslope riparian area than in the upslope ridge area, and transport through litter and sediment contributed minimally to the inventory.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Review
Environmental Sciences
Jonathan P. Townsend, Chris S. Renschler, Jared Aldstadt
Summary: Understanding bat habitat use and species-specific foraging behavior is crucial for effective bat conservation. This study in Chautauqua County, NY, utilized GIS and bioacoustic sampling to investigate bat habitat interactions, identifying the significance of forested areas for bats. The methodology proved useful in gathering large datasets efficiently and can serve as a baseline for future conservation efforts.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Nigus Demelash Melaku, Junye Wang, Tesfa Worku Meshesha
Summary: The modified SWAT model accurately estimates carbon dioxide emissions and ecosystem exchange in wetlands, taking into account the effects of water table dynamics.
Article
Agronomy
Gunther C. Liebhard, Andreas Klik, Christine Stumpp, Angela G. Morales Santos, Josef Eitzinger, Reinhard Nolz
Summary: This study investigated the weekly evaporation and transpiration rates in a soybean field under varying soil water conditions. The results showed that vertical soil water distribution and meteorological conditions influenced the transpiration/evaporation rates. During dry periods, evaporation was almost zero, while a wet surface layer increased evaporation.
INTERNATIONAL AGROPHYSICS
(2022)
Article
Environmental Sciences
Jungrack Kim, Munkhzul Dorjsuren, Claudio Zucca, Gomboluudev Purevjav
Summary: In this study, the decadal progress of eolian erosion in the southern Gobi Desert was analyzed using satellite data and climatic variables. The results showed that land degradation and sand and dust generation in the desert are significantly controlled by precipitation distribution and trends, with climatic conditions shifting towards an unfavorable direction. Anthropogenic activities have also contributed to the expansion of the transition zone between the desert and vegetated terrain.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Environmental Sciences
Sharad Kumar Gupta, Jungrack Kim, Claudio Zucca, Arindam Sharma
Summary: The study developed a comprehensive framework that utilizes earth observation data and spatial technologies to monitor land degradation and its impacts in drylands. The framework integrates multiple data sources and metrics to generate consistent outputs. With the use of machine learning algorithms, it can model wind erosion and sand and dust storms, providing support for planning land degradation neutrality targets.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Water Resources
Thomas Brunner, Thomas Weninger, Elmar Schmaltz, Josef Krasa, Jakub Stasek, Laura Zavattaro, Istvan Sisak, Tomas Dostal, Andreas Klik, Peter Strauss
Summary: This study explores parameterisation, calibration, and validation methods for erosion modelling and develops a new model that combines physical and empirical approaches. The model performs well in reproducing runoff and soil loss, but shows limited agreement with measurements for the sediment phase.
HYDROLOGICAL PROCESSES
(2023)
