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
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
Water Resources
Mulugeta Admas, Assefa M. M. Melesse, Brook Abate, Getachew Tegegne
Summary: This study modeled soil erosion, sediment yield, and runoff in the Megech watershed, Upper Blue Nile Basin, Ethiopia using the GeoWEPP model. The results showed significant variability in sediment yield in the watershed, suggesting the implementation of best watershed management practices to reduce sediment yield rates.
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
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
Computer Science, Interdisciplinary Applications
Erkan Karakoyun, Nihat Kaya
Summary: This study used the Soil and Water Assessment Tool (SWAT) to assess the streamflow, sediment yield, and soil erosion conditions in the Murat River Basin in the Euphrates-Tigris basin of Turkey. The results showed that there is significant soil erosion in the region, particularly in barren land and sub-watersheds with steep slopes. The SWAT model successfully simulated the streamflow and sediment yield, providing valuable information for water resource management.
JOURNAL OF HYDROINFORMATICS
(2022)
Article
Engineering, Civil
Claudia Alessandra Peixoto de Barros, Gerard Govers, Jean Paolo Gomes Minella, Rafael Ramon
Summary: This study aimed to assess the hydrological and erosive process dynamics in the catchment, revealing that 62% of the hydrograph is formed by groundwater + soil water, especially in autumn-winter and for low-medium magnitude events, with a dilution effect observed during rainfall events on dissolved silicon (DSi) concentration and suspended sediment concentration. The performance of physics-based models in a catchment with very fragile soils and frequent changes in land use is impacted by runoff separation.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Abhisek Kumar Singh, Suresh Kumar, Suneet Naithani
Summary: The study utilized the GeoWEPP model to estimate daily runoff and sediment yield in a small watershed in the Lesser Himalaya region of India, showing reliable estimation capabilities in the lower Himalayan landscape through calibration and performance evaluation.
MODELING EARTH SYSTEMS AND ENVIRONMENT
(2021)
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
Environmental Sciences
Manmohanjit Singh, Abrar Yousuf, Harpreet Singh, Sukhdeep Singh, Kerstin Hartsch, Michael von Werner, Abdulrazak H. Almaliki, Ashraf Y. Elnaggar, Enas E. Hussein, Hager R. Ali
Summary: This study verifies the efficiency and applicability of the EROSION-3D model in predicting runoff and soil loss in micro-watersheds of the Shivalik region in Northwest India. The model demonstrated good accuracy in simulating runoff and sediment yield, making it a reliable decision support system for soil conservation management in the lower Shivaliks of India.
Article
Environmental Sciences
Guotao Zhang, Peng Cui, Wen Jin, Zhengtao Zhang, Hao Wang, Nazir Ahmed Bazai, Yao Li, Dingzhu Liu, Pasuto Alessandro
Summary: This study revealed the impact of earthquake-induced co-seismic landslides on flood hydrological behaviors through collecting and analyzing time-series data from 2007 to 2018. It was found that the expansion of landslide areas after the earthquake resulted in significant changes in flood hydrological behaviors, and a tipping point in hydrological disturbance-recovery trajectory was detected in 2011.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
He Wang, Wenxiang Chen, Man Zhou, Zuopin Zhuo, Yue Zhang, Fangshi Jiang, Yanhe Huang, Jinshi Lin
Summary: This study investigates the changes in runoff and sediment characteristics after continuous soil erosion control in the red soil region of southern China, focusing on the Zhuxi watershed. The findings show a significant decrease in suspended sediment concentration and sediment yield since 2017. The classification of flood patterns based on duration, runoff depth, and peak discharge reveals varying levels of sediment yield, with Pattern C contributing the most. The study provides valuable insights into the runoff and sediment processes, shedding light on the development of soil erosion in the region.
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
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
Water Resources
Vajapeyam S. Srinivasan, Hugo M. de Alcantara, Carlos de O. Galvao, Ulisses A. Bezerra, John E. de Brito Leite Cunha
Summary: Catchments exhibit highly variable yields of runoff and soil erosion, influenced by factors such as size, land use, and surface cover. Experimental basins in Brazil demonstrate the impact of different scales on runoff and sediment yield, providing valuable data for hydrological modeling and research.
HYDROLOGICAL PROCESSES
(2021)