Article
Plant Sciences
Lei Wang, Yan Li, Jiajun Wu, Zhizhuang An, Linna Suo, Jianli Ding, Shuo Li, Dan Wei, Liang Jin
Summary: The study found that slope gradients and rainfall intensities have a significant impact on soil erosion and nutrient loss. Rainfall intensities greater than 40 mm/h resulted in a doubling of the runoff coefficient increase, with the greatest increase observed at 0 degrees slope gradient. Slope surface runoff depth and rate were positively correlated with rainfall intensity and negatively correlated with slope gradient. Cumulative sediment yield was positively related to slope gradient and rainfall intensity. Additionally, nitrogen loss rates increased with higher rainfall intensities and slope gradients.
Article
Environmental Sciences
Yaxian Hu, Vincent Schneider, Brigitte Kuhn, Shengli Guo, Nikolaus J. Kuhn
Summary: Net soil CO2 emissions tend to decline with increasing slope gradients, attributed to increased runoff and greater soil loss on steep slopes. The relationship between topography and soil CO2 emissions can be masked by coarse-resolution digital terrain models, potentially leading to inaccurate assessments of soil-atmosphere interaction. The use of high-resolution DTMs derived from Unmanned Aerial Vehicles can greatly improve the estimation of CO2 emissions and bridge the gap between conventional field investigations and remote sensing methods.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
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
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
Engineering, Civil
Qilin He, Binbin Li, Fengbao Zhang, Nan Shen, Mingyi Yang
Summary: Clipping management is introduced to offset the negative effects of large-scale vegetation restoration and enhance the sustainability of vegetation. By conducting simulated rainfall experiments, this study found that clipping increased runoff depth and soil loss, with recommended vegetation cover and slope gradient to balance runoff production and soil erosion.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Hui Wang, Debao Lu, Qian Wang, Chengju Shan
Summary: The red soil hilly region of southern China is sensitive to rainstorms during the Meiyu periods, which can cause serious soil erosion. Incorporating gravel into soil surfaces has been shown to reduce sediment and runoff, with varying effects under different rainfall intensities. At low rainfall intensity, embedded gravel and gravel mulching inhibit runoff formation, but this inhibition is reduced at high rainfall intensity and steeper slopes.
POLISH JOURNAL OF ENVIRONMENTAL STUDIES
(2021)
Article
Geosciences, Multidisciplinary
Shue Wei, Kuandi Zhang, Chenglong Liu, Youdong Cen, Junqiang Xia
Summary: This study analyzed the effects of different vegetation components on erosion through simulated rainfall experiments and found that litter had the best effect in reducing erosion, followed by roots. The study also revealed that the reduction in runoff and sediment by the treatments decreased with increasing rainfall intensity.
Article
Multidisciplinary Sciences
Xingli Gu, Jun Luo, Bin Zhang, Lei Wang, Qiangjianzhong Wu
Summary: This study used a microtopographic profiler to measure rill cross-sections in the Yuanmou dry-hot valley area and found significant asymmetry in the cross-sections. The slope difference is positively correlated with the asymmetry ratio, and the difference in catchment areas is linearly correlated with the width's asymmetry ratio.
SCIENTIFIC REPORTS
(2022)
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
Geography, Physical
Yong Wang, Zehong Zhang, Jianhui Zhang, Xinlan Liang, Xing Liu, Yun Zeng
Summary: The study found that surface rills significantly impact tillage erosion, with tillage erosion rates increasing with higher water erosion rates on slopes. The results suggest a strong correlation between surface rills, water erosion, and tillage erosion on steep slopes.
Article
Geosciences, Multidisciplinary
Chao Chen, Tingwu Lei, Yunyun Ban, Xiaofeng Gao, Xiusheng Yang
Summary: This study aimed to investigate the effects of thawed soil depth on rill erosion and the experimental results showed that sediment concentrations can be well fitted with piecewise functions of linear and exponential sections.
Article
Environmental Sciences
Jinke Yuan, Changwen Ye, Xiangjun Pei, Zuan Pei, Zhenbin Xie, Lei Luo, Bo Yu
Summary: This paper studied a new double polymer chemical sand-fixing agent (DPCM) based on water-soluble polymers and its application in sandy soil slope stabilization. The results showed that the addition of DPCM significantly reduced water erosion and runoff from the slopes.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Xuantian Li, Fengbao Zhang, Jiayan Yang, Mingyi Yang
Summary: This study investigated the impact of rainfall characteristics and slope length on the properties of sediment and organic carbon fractions in the soil erosion process. The results showed significant effects of rainfall characteristics and slope length on soil loss and organic carbon loss, especially in selective transport erosion processes.
Article
Geography
Chhabi Lal Chidi, Wei Zhao, Pankaj Thapa, Basanta Paudel, Suresh Chaudhary, Narendra Raj Khanal
Summary: Farmers in the mountainous region of Nepal use outward sloping terraces to control soil erosion, and a study shows that this traditional topographic management is highly effective in controlling soil erosion, even with varying amounts of rainfall.
Article
Engineering, Civil
Jianbo Liu, Yue Liang, Guangyao Gao, David Dunkerley, Bojie Fu
Summary: This study found that natural rainfall events exhibit strong intensity fluctuations, with most rainfall amount occurring in only about 27% of rainfall duration. The proposed rainfall intensity fluctuation indicators were significantly correlated with runoff, sediment concentration, and soil loss. Models considering rainfall intensity fluctuations performed better in predicting runoff, sediment concentration, and soil loss compared to models only considering general rainfall characteristics.
JOURNAL OF HYDROLOGY
(2022)
Article
Geosciences, Multidisciplinary
Haihua Wang, Huaiyang Ke, Hongping Wu, Siyuan Ma, Muhammad Mohsin Altaf, Xiaoping Diao
Summary: Carbon storage in mangroves is crucial for mitigating climate change, but our understanding of this aspect is limited. This study investigated the seasonal changes in the carbon metabolic profile of microbial communities in mangrove soils on Hainan Island, China, and found that season plays a critical role in shaping the carbon functional diversity of microbial communities.
Article
Geosciences, Multidisciplinary
Donghui Zhao, Congcong Shen, Zhi-Ming Zhang, Jichen Wang, Li-Mei Zhang, Baodong Chen, Guo-Xin Sun, Yuan Ge
Summary: By studying soil samples from different slope directions along an elevational gradient in a mountain ecosystem, we found that soil bacterial diversity and microbial functions exhibit distinct elevational patterns, which are consistent across slope directions. The bacterial diversity shows a hump-shaped pattern, while microbial functions exhibit a linear increasing trend. Additionally, the beta diversity pattern of soil bacteria is significantly influenced by elevational distance decay relationships. Soil bacterial diversity patterns are determined by transitions in community assembly processes, whereas microbial functions are mainly influenced by bacterial community composition.
Article
Geosciences, Multidisciplinary
Guanfang Sun, Yan Zhu, Wei Mao, Yonghong Li, Jinzhong Yang, Zhaoliang Gao
Summary: This study developed a water and salt balance model to predict long-term water and salt dynamics in seasonally frozen arid agricultural regions. The model was validated in a region in China and showed that increasing autumn irrigation water can decrease soil salinity during the irrigation period, but has limited impact on long-term average soil salinity.
Article
Geosciences, Multidisciplinary
Alfredo Mayoral, Ana Ejarque, Arnau Garcia-Molsosa, Mercourios Georgiadis, Giannis Apostolou, Vincent Gaertner, Constantina Kallintzi, Eurydice Kefalidou, Hector Orengo
Summary: This paper presents an integrated Geoarchaeological approach to studying the landscape change and socio-environmental interaction around ancient Abdera. The study uses a combination of remote sensing, geomorphological mapping, sedimentary coring, and radiocarbon dating to reconstruct the palaeogeographic evolution of the area. The results challenge previous narratives about the rise and decline of Abdera and provide new insights into the role of historical and environmental factors. It also introduces evidence of submerged Neolithic landscapes and the impact of anthropogenic forcing on the sedimentary systems.
Article
Geosciences, Multidisciplinary
Jiale Chen, Michael Dannenmann, Qiang Yu, Yalong Shi, Matthew D. Wallenstein, Xinguo Han, Honghui Wu, Klaus Butterbach-Bahl
Summary: This study investigated the effects of temperature and moisture on soil nitrogen turnover through field experiments and laboratory incubation experiments. The results showed that soil temperature had a greater explanatory power than moisture in gross ammonification and nitrification rates. Climate warming may have a greater impact on gross nitrogen turnover compared to changes in rainfall.
Article
Geosciences, Multidisciplinary
Zhen Han, Xiuchao Yang, Xiaoai Yin, Qian Fang, Longshan Zhao
Summary: This study investigated the effects of exposed root distribution patterns on rainfall-runoff processes. The results showed that the distribution patterns of exposed root had a significant impact on rainfall-runoff processes. A vertical slope arrangement was conducive to rainfall infiltration, a parallel slope arrangement resulted in more surface runoff, and a transverse slope arrangement could reduce water loss.
Article
Geosciences, Multidisciplinary
Bo Zhao
Summary: Seismic earthflows, as special seismic landslides, have not received much attention in previous studies. This study analyzed the characteristics and movement of earthflows induced by recent earthquakes. The results showed that earthflows occur in high-rainfall areas and are sensitive to rainfall. Compared to other seismic landslides, seismic earthflows occur on gentler hills and have higher mobility.
Article
Geosciences, Multidisciplinary
Tingxi Liu, Xueqin Wang, Mingyang Li, Dongfang Li, Limin Duan, Xin Tong, Guanli Wang
Summary: Soil respiration plays a crucial role in the global carbon cycle in arid and semi-arid regions, and is regulated by hydrothermal factors. This study examined the seasonal and diurnal dynamics of soil respiration in two typical ecosystems in northern China, and investigated their responses to precipitation, temperature, and drought. The results showed that soil respiration varied seasonally and diurnally, and its response to environmental factors depended on the ecosystem type and soil moisture status. Incorporating multiple factors into carbon cycle models can improve the simulation and prediction of carbon emissions in arid and semi-arid regions.
Article
Geosciences, Multidisciplinary
Yaochen Xu, Ninghua Chen, Deguo Zhang, Bowen Gao, Xuhua Weng, Hongcheng Qiu
Summary: This study provides systematic investigation on how yardangs exert control over dune morphology, and reveals the intricate wind dynamics and mechanisms involved. Computational fluid dynamics modeling and remote sensing data further support the observations and shed light on the influences of yardangs on wind deposition and dune formation.
Article
Geosciences, Multidisciplinary
Yuri Lopes Zinn, Welton Pereira da Rocha Jr
Summary: This study assessed the evolution of Journal Impact Factors (JIF) and related data in the field of Soil Science over a 26-year period, and compared it with the field of Agronomy. The results showed a significant growth in JIFs and output in Soil Science, with commercial scientific publishers' journals experiencing higher growth rates than non-profit journals. The study also highlighted the importance of considering not only JIF, but also the bibliometric footprint, in determining the relevance and leadership of journals in the discipline.
Article
Geosciences, Multidisciplinary
Shanshan Liao, Xiaodong Nie, Aoqi Zeng, Wenfei Liao, Yi Liu, Zhongwu Li
Summary: Lake drawdown areas, where sediment is exposed due to water level fluctuations, have a significant impact on the carbon cycle. This study examined microbial necromass carbon (MNC) content and its contribution to soil organic carbon (SOC) in different habitats within the drawdown area of Dongting Lake. The results showed that MNC content varied among habitats and was primarily influenced by carbon and nitrogen availability, plant biomass, clay content, and soil moisture. External factors, such as plant and soil properties, played a more crucial role in the long-term accumulation of MNC. These findings enhance our understanding of MNC stability in drawdown areas.
Article
Geosciences, Multidisciplinary
Vanessa Alves Mantovani, Marcela de Castro Nunes Santos Terra, Andre Ferreira Rodrigues, Carlos Alberto Silva, Li Guo, Jose Marcio de Mello, Carlos Rogerio de Mello
Summary: There is a lack of research on the potential of tropical soils in the Brazilian Atlantic Forest biome to store carbon. This study aimed to determine the soil carbon stocks at different depths, describe their temporal variability, and identify the main drivers that influence their variations. The results showed significant spatial and seasonal variability in soil carbon stocks, with a high accumulation in December and a low accumulation in August. The study also found that litterfall, throughfall, tree sizes, and soil moisture were important factors affecting the distribution of soil carbon.
Article
Geosciences, Multidisciplinary
Anais Zimmer, Timothy Beach, Sheryl Luzzadder-Beach, Antoine Rabatel, Rolando Cruz Encarnacion, Joshua Lopez Robles, Edison Jara Tarazona, Arnaud J. A. M. Temme
Summary: Climate warming has accelerated glacial retreat and soil formation in mountainous regions. The accumulation of soil organic carbon and nitrogen is influenced by environmental factors, with maximum temperature and initial site conditions playing important roles in soil development.
Article
Geosciences, Multidisciplinary
Ren-Min Yang, Lai-Ming Huang, Feng Liu
Summary: This study investigated the soil organic carbon (SOC) stocks in seasonally frozen ground (SFG) in the Tibet Autonomous Region, China, in 2020 and 2021, and explored the effects of various factors on SOC using partial least squares structural equation modeling (PLS-SEM). The results showed that C inputs exerted the greatest control on SOC, and the influence of these factors decreased with increasing soil depth. Additionally, timely spatial SOC estimates were found to be important for assessing carbon stocks in the context of environmental changes.
Article
Geosciences, Multidisciplinary
Shue Wei, Kuandi Zhang, Chenglong Liu, Youdong Cen, Junqiang Xia
Summary: This study analyzed the effects of different vegetation components on erosion through simulated rainfall experiments and found that litter had the best effect in reducing erosion, followed by roots. The study also revealed that the reduction in runoff and sediment by the treatments decreased with increasing rainfall intensity.