Article
Geosciences, Multidisciplinary
Qihua Ke, Keli Zhang
Summary: The study reveals that climatic factors have complex leverage over water erosion, with differences in rainfall characteristics, surface runoff, and soil loss across different climate zones. The relationships between rainfall, runoff, erosion, and their patterns are inconsistent among various climatic regions. Climate plays a significant role in influencing surface processes on hillslopes.
Article
Environmental Sciences
Jianlin Zhao, Zhengang Wang, Yifan Dong, Zhiqiang Yang, Gerard Govers
Summary: The study found that land use in China significantly affects soil loss and runoff, with lower rates on land covered by grass and trees compared to cropland. Slope gradient and slope length impact soil loss and runoff rates on cropland, while having no significant effect on plots with permanent vegetation cover. Runoff rates consistently increase with mean annual precipitation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Chenfeng Wang, Xudong Fu, Bin Wang, Zheng Gong, Ga Zhang, Xiaoping Wang
Summary: An improved hillslope erosion dynamic model (HED) based on sediment feedback mechanism was established and evaluated using field data from the Loess Plateau of China. The power function was found to accurately reproduce soil detachment and sediment transport capacities under varying field slope conditions. HED can be integrated into distributed watershed models for predicting sediment discharge within runoff events.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Ximeng Xu, Fenli Zheng, Qiuhong Tang, Glenn Wilson, Min Wu, Yong Han, Peiqing Xiao, Xunchang J. Zhang
Summary: This study investigated how sediment concentration in upslope inflow influences downslope ephemeral gully (EG) erosion through field monitoring and indoor simulations. The results showed that higher sediment concentration in upslope inflow led to greater sediment delivery and erosion in EG systems. Both field observations and indoor simulations confirmed the transport-dominated sediment regime in EG systems.
Article
Environmental Sciences
Vincenzo Pampalone, Alessio Nicosia, Vincenzo Palmeri, Maria Angela Serio, Vito Ferro
Summary: Reliable prediction of event soil loss at the plot scale can be achieved using the USLE-MB model, which models the effect of erosive agents using the rainfall erosivity index and the runoff coefficient. This study parameterized the model separately for rill and interrill events and found different values of the power b(1), indicating different impacts of the runoff coefficient on soil loss in these two erosive processes. Different relationships for topographic factors were also derived. The performance of the USLE-MB model improved significantly when distinguishing between the two databases compared to using the complete database.
Article
Geosciences, Multidisciplinary
Sergey Chalov, Viktor Ivanov
Summary: This paper presents a comparative study of sediment budgets for the largest Siberian rivers in Northern Eurasia. The data suggests that sediment sinks and storage in catchment and river networks dominate the sediment budget, leading to a significant decline in sediment transport compared to catchment erosion.
Article
Geosciences, Multidisciplinary
P. I. A. Kinnell
Summary: This article discusses how to predict rainfall erosivity in many locations in Australia without short-term rainfall data by using the estimated kinetic energy per unit quantity of rain. This approach may be applicable in other areas lacking short-term rainfall data as well.
Article
Geosciences, Multidisciplinary
Yanfei Li, Zhengang Wang, Jianlin Zhao, Yongming Lin, Guoping Tang, Zhen Tao, Quanzhou Gao, Aimin Chen
Summary: Soil erosion is a significant issue in China, with cultivated soils experiencing higher rates of soil loss compared to uncultivated soils. Factors such as slope gradient and slope length are positively correlated with soil loss rates. Discrepancies exist between soil loss rates derived from Cs-137 inventories and erosion plots due to their focus on different erosion processes and spatio-temporal scales.
Article
Soil Science
Xihua Yang, John Leys, Mingxi Zhang, Jonathan M. Gray
Summary: Nutrient transport from soils to water bodies poses threats to agricultural productivity, food security, water quality, and the environment worldwide. However, the contribution of soil erosion to nutrient loss is often overlooked in nutrient cycle studies. This study assessed the transport of soil nutrients by water and wind erosion across New South Wales (NSW), Australia. The findings revealed significant spatial and temporal variations in nutrient transport rates, with water erosion being the primary contributor. The cost of nutrient transport in NSW was estimated to be billions of dollars annually. This study enhances the understanding of nutrient transport due to erosion in broad nutrient cycle studies.
Article
Environmental Sciences
Wilk Sampaio de Almeida, Steffen Seitz, Luiz Fernando Coutinho de Oliveira, Daniel Fonseca de Carvalho
Summary: Different rainfall patterns have varying impacts on soil erosion, with high intensity and low duration rainfall leading to the highest runoff and sediment yield. The study results can contribute to developing new perspectives in designing water erosion experiments with simulated rain, considering the duration, intensity, and their association.
INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
P. I. A. Kinnell
Summary: The EI30 index is an event erosivity index used for predicting unit plot soil loss. The index has issues of overpredicting small soil losses and underpredicting large soil losses. This problem arises from the failure of the USLE model to consider the direct effect of runoff on soil loss. The concept of erosivity density, along with the I30 index, provides an alternative erosivity index that incorporates the direct effect of runoff on soil loss.
Article
Environmental Sciences
Juliette Rougerie, Rachel Martins de Barros, Remy Buzier, Delphine Devillers, Patrice Fondaneche, Sophie Lissalde, Julie Leblanc, Margaux Saut, Jean-Pierre Rebillard, Nicolas Mazzella, Gilles Guibaud
Summary: The contribution of DGT to continental water quality monitoring was evaluated in a real measurement network, showing robust field deployments and higher quantification frequency for certain elements compared to grab sampling. Despite the higher cost, the use of DGT sampling provides different but complementary information for water quality assessments, making it a valuable tool for improving monitoring networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Soil Science
Javier Gonzalez-Romero, Demetrio Antonio Zema, Bruno Gianmarco Carra, Jonay Neris, Alvaro Fajardo, Pedro Antonio Plaza-Alvarez, Daniel Moya, Esther Pena-Molina, Jorge de Las Heras, Manuel Esteban Lucas-Borja
Summary: Soil erosion models applied to burned forests in different global regions can be unreliable due to a lack of verification data. This study evaluated three erosion models and found that an optimized MMF model was the most accurate way to estimate soil loss in burned forests, providing valuable insight for land managers.
SOIL USE AND MANAGEMENT
(2023)
Article
Environmental Sciences
Takahiro Tatsuno, Hiromichi Waki, Minato Kakuma, Naoto Nihei, Tsugiko Takase, Toshihiro Wada, Kazuya Yoshimura, Takahiro Nakanishi, Nobuhito Ohte
Summary: This study investigated the effect of radioactive cesium-rich microparticles (CsMPs) on the particulate RCs concentration and Kd in two rivers (Takase River and Kami-Oguni River) flowing through watersheds with different contaminated levels in Fukushima Prefecture. CsMPs may enter rivers through soil erosion, and the proportion of CsMPs in particulate RCs was higher in the Kami-Oguni River than in the Takase River during flood events. However, the overall contribution of CsMPs to the RCs concentrations in river waters during the flood event was not significant when evaluated throughout the event.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Geosciences, Multidisciplinary
Philipp Saggau, Michael Kuhwald, Rainer Duttmann
Summary: To reduce water erosion on arable soils, conservation measures such as contour farming or reduced tillage practices can be applied. This study assesses the impact of reduced and conventional tillage and slope-related tramline directions on runoff and soil erosion rates. Results show that tramlines have strong interrelations with surface runoff, water connectivity, and soil erosion, highlighting the importance of considering tramlines in process-based models for better assessment of soil erosion risk and conservation measure efficiencies.
Article
Environmental Sciences
Li Hao, Richard M. Cruse, Liu Xiaobing, Zhang Xingyi
CHINESE GEOGRAPHICAL SCIENCE
(2016)
Article
Soil Science
Hao Li, Richard M. Cruse, Ronald L. Bingner, Karl R. Gesch, Xingyi Zhang
SOIL & TILLAGE RESEARCH
(2016)
Article
Soil Science
Y. Chen, S. Liu, H. Li, X. F. Li, C. Y. Song, R. M. Cruse, X. Y. Zhang
SOIL & TILLAGE RESEARCH
(2011)
Article
Green & Sustainable Science & Technology
Jinzhong Xu, Hao Li, XiaoBing Liu, Wei Hu, Qingnan Yang, Yanfang Hao, Huaicai Zhen, Xingyi Zhang
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)