Article
Geosciences, Multidisciplinary
Na Zhou, Qing Li, Chun-Lai Zhang, Huang Chi-Hua, Yanbing Wu, Bingqi Zhu, Songbo Cen, Xiaoqi Huang
Summary: Typical aeolian landforms have developed in China's Yarlung Zangbo River valley on the Qinghai-Tibet Plateau. Understanding the grain size characteristics of these dunefields is crucial for revealing the region's aeolian dynamics. Different dunefields exhibit distinct patterns of grain size distribution influenced by local airflow and wind dynamics, with Maquan valley showing interactions between local sands and airflow, Shannan valley controlled by valley winds, and Mainling valley influenced by sand entrainment and saltation.
Article
Geography, Physical
Xiaohao Wen, Matt W. Telfer, Baosheng Li, Wei Wang, Tim Daley, Chen Wang, Mengyuan Tian, Mingkun Qiu
Summary: This paper examines the sediment characteristics of the Salawusu River Valley in north central China, specifically focusing on the Holocene Dagouwan Formation. It finds that the sediment features in the region are influenced by monsoonal activity and have undergone different geological processes.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Environmental Sciences
Xuelian Guo, Lusheng He, Guoyong Zhao, Weibin Wang, Huairen Cao, Hao Wu
Summary: The evolution of Holocene climate in the Chinese Loess Plateau was studied through the analysis of grain size and magnetic susceptibility of paleosols. The results show that the climate during the Holocene can be divided into three phases, with changes in the intensity of the East Asian Summer Monsoon and East Asian Winter Monsoon. These findings provide important insights into the understanding of Holocene climate change.
CHINESE GEOGRAPHICAL SCIENCE
(2022)
Article
Geography, Physical
Xing Tian, Xiaoyong Long, Shu'e Luo, Min Cao, Ji Li, Yuchuan Sun, Sibo Zeng, Ze Wu, Chuan Liu, Lidan Lei, Thomas J. Algeo, Yongjun Jiang
Summary: In this study, a sediment sequence from a typical karst catchment spanning 33,000 years was analyzed using geophysical, geochemical, and biological properties. The results showed that before the Late Holocene, paleoclimate change was the main driver of environmental changes, while vegetation change related to paleotemperature played a significant role during the Early and Middle Holocene. However, anthropogenic activities have had a greater impact on the environment since the Late Holocene. This study demonstrates the usefulness of dated karst depression deposits in reconstructing Holocene climate change and the timing of anthropogenic impacts.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geography, Physical
Elisa Malinverno, Giulia Bosio, Claudio Di Celma, Karen Gariboldi, Anna Gioncada, Pietro Paolo Pierantoni, Alberto Collareta, Giancarlo Molli, Gabriella Bagnoli, Giovanni Sarti, Mario Urbina, Giovanni Bianucci
Summary: The Eocene sedimentary successions in the East Pisco Basin in southern Peru contain a rich assemblage of vertebrate fossils, but their understanding is hindered by lack of geochronological and biostratigraphic controls. This study provides a comprehensive biostratigraphic framework for the Eocene strata in the area, aiding in the chronological calibration of the marine vertebrate fauna and defining important appearance/extinction events.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Environmental Sciences
Zhenqing Zhang, Lin Li, Rui Yin, Lu Zhang, Kai Yi, He Ji, Haijiao Yin, Lili Huo
Summary: In this paper, three well-dated wetland sedimentary cores were used to reconstruct the historical flooding regime along the Ussuri River. The results show that these flooding events were influenced by the East Asian summer monsoon and human activities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Elizabeth H. Dingle, Kyle M. Kusack, Jeremy G. Venditti
Summary: Gravel-sand transitions in river channels result in a significant reduction in median grain sizes, typically occurring a short distance downstream of mountain ranges or at a characteristic backwater distance upstream of a base-level control. While universal morphological characteristics associated with the transition are lacking, backwater effects and exhaustion of gravel supply can generate a distinct change in water surface slope.
EARTH-SCIENCE REVIEWS
(2021)
Article
Marine & Freshwater Biology
Kota Katsuki, Jaesoo Lim, Jin-Young Lee
Summary: This study examines the relationship between tidal levels and diatom assemblage and grain size distributions in sediments of Jujin Stream, a tributary of Gomso Bay in Western Korea. The results show clear gaps in diatom and grain size distributions between tidal, fluvio-tidal transition, and freshwater zones. Combining diatom and grain size data can provide accurate paleo sea-level information for strongly tidal areas.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Engineering, Environmental
N. N. Phuong, E. Dhivert, B. Mourier, C. Grosbois, J. Gasperi
Summary: This study investigates the distribution of microplastic pollution in sediments of the Villerest reservoir. The results show that the section with fine-grained sediments has significantly higher levels of microplastics compared to the section with coarse-grained sediments. The study also finds that the polymer diversity is higher in fine-grained sediments. This research contributes to a better understanding of the role of hydrosedimentary processes in microplastic distribution and provides valuable insights for sediment management operations.
Article
Environmental Sciences
Xiao Wu, Houjie Wang, Naishuang Bi, Jingping Xu, Jeffrey A. Nittrouer, Zuosheng Yang, Taian Lu, Peihua Li
Summary: This study highlights the impacts of the Water-Sediment Regulation Scheme (WSRS) on the lower Yellow River system, showing that artificial floods have significantly altered the volume and grain size patterns of transported sediment. The changes have led to high sediment loads over a shorter time frame and coarsening of the river channel, causing a shift from recession to progradation in the Yellow River delta and rapid burial of terrestrial organic carbon and pollutants.
WATER RESOURCES RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Wenyu Wei, Minmin Ma, Guoke Chen, Jiajia Dong, Zekun Wu, Haiming Li, Xiaobin Li
Summary: The response of agricultural societies to global climate events during the Neolithic is of interest. In the mid-lower Hulu River Valley, millet cultivation became the primary subsistence during the late Neolithic. Local paleoclimate studies have detected a decline in temperature and precipitation, yet the increase in millet farming groups under these conditions remains unclear.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Environmental Sciences
Yu Wang, Bao-long Li, Juan-juan Liu, Qi Feng, Wei Liu, Xu Wang, Yu-hua He
Summary: The construction of cascade reservoirs in the Heihe River significantly affects the distribution of sediment grain size, resulting in high levels of sediment fining or coarsening. The backwater zone of the reservoir is influenced by both backwater and released water, leading to a high degree of sediment coarsening. The sediment in the upstream tributary is more influenced by source material, while mainstream sediments are mainly controlled by hydrodynamic conditions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Mauricio Andrades Paixao, Masato Kobiyama, Cristiano Poleto, Luca Mao, Itzayana Gonzalez Avila, Hiroshi Takebayashi, Masaharu Fujita
Summary: This study aims to understand the relationship between morphology, topography, and local sediments in a canyon river in Southern Brazil. Topobathymetric data were obtained during a field survey, and the results suggest that sediment supply is an essential characteristic of the canyon's influence on river morphology. The study also found that the influence of the canyon on river characteristics weaken from upstream to downstream.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Geosciences, Multidisciplinary
Roman Kozyrev, Yu Umezawa, Muneoki Yoh
Summary: Phosphorus is essential for the growth and development of living organisms, and it often limits primary production in freshwater ecosystems. Rivers can transport significant amounts of particulate organic and inorganic phosphorus from the basin to the ocean during flood events. This study examined various phosphorus forms in different sediment and soil samples along the Tone River in Japan to understand phosphorus transformation and distribution.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Soil Science
Jingyi Ji, Yunge Zhao, Wantao Zhang, Kangmin Gu, Wen Li
Summary: This study developed a method to quantitatively characterize the distribution pattern of biological soil crusts (biocrusts) and proposed four landscape indices to describe their characteristics. This method lays a foundation for studying the relationship between the distribution pattern of biocrusts and ecological functions and processes.
Article
Geosciences, Multidisciplinary
Fengnian Wang, Yuejun Si, Baosheng Li, Dongfeng Niu, Xiaohao Wen, Zhiwen Li, Min Chen, Chen Wang, Yihua Guo, Zhiying Yang
Summary: Analysis of sedimentary cycles in the Fanjiagouwan section in China revealed 17 warm-humid and cold-arid climate cycles occurring between 115000 - 93000 a BP. These climate changes were found to be a regional response to global climate changes during that period.
TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
(2021)
