Results 101 to 110 of about 1,260 (261)

Divergent Blue Carbon Trajectories in the Yellow River Delta Post‐1976 Diversion: Hydrological Stability and Human Disturbance Contrasts Revealed by Multi‐Source Remote Sensing (1984–2023)

Land Degradation &Development, EarlyView.
ABSTRACT Coastal wetlands are critical blue carbon sinks, yet their spatiotemporal dynamics under environmental change remain insufficiently quantified. Taking the Yellow River Delta (YRD) as a natural laboratory, this study synthesizes multi‐source remote sensing data, including optical and radar imagery spanning from 1984 to 2023, to explore the ...
Mengqian Jiang, Haotian Liu, Zhenfang He, Zhaosheng Wang, Xuanjie Gai, Qingchun Guo, Shaowei Su   +6 more
wiley   +1 more source

Analytical study of the mechanics of scour for two-dimensional jet

, 1960
Using the rectilinear coordinate system the equation of continuity of mass sediment transport is derived, and the continuity equation is used to help in describing mathematically the phenomenon of scour by the continuity equation. The relationship between the shape of the scour hole and its variation with time is investigated for different conditions ...
Duckstein, Lucien, author, Iwagaki, Yuichi, author, Smith, George L., author, Albertson, Maurice L., author, Colorado State University, Civil Engineering Department, publisher   +4 more
openaire   +1 more source

Experimental research on mechanism of scour by submerged jets in consolidated clay

Ain Shams Engineering Journal
This study presents a rapid consolidation device for clay, coupled with a systematic investigation of submerged jet scouring behavior in consolidated clay under varying parametric conditions (soil strength: 25–40 kPa; jet velocity: 7.5–12.5 m/s; nozzle diameter: 5–7 mm; target distance: 0–3 cm).
Xing Zhao, Dong Chen, Lianjun Zhao, Wenjiao Zhang, Zhongmei Wang, Caiping Wu   +5 more
openaire   +2 more sources

Characteristics and Influencing Factors of Soil Shear Strength in Gully Erosion at Different Developmental Segments of Subalpine Meadows

Land Degradation &Development, EarlyView.
ABSTRACT Subalpine meadows play important roles in biodiversity conservation and soil carbon sequestration, but gully erosion poses a serious threat to their ecological stability. Soil shear strength (τ) is a key mechanical parameter for evaluating gully stability and soil resistance to failure. However, the spatial variation in soil shear strength and
Xiaofeng Yang, Keyu Yan, Qingsong Duan, Xiaohan Mei, Pingping Chen, Yanmei Hu, Yanrui Shao, Yanjun Mao, Shufang Li, Zhengfa Chen   +9 more
wiley   +1 more source

A novel approach for in situ benthic habitat characterization

Limnology and Oceanography: Methods, EarlyView.
Abstract Habitat heterogeneity is a key driver of temporal and spatial variability of subtidal marine benthic biodiversity. However, this makes it a challenging environment in which to measure and quantify the factors driving biodiversity in a consistent manner.
Ryan J. W. Mathews, David K. A. Barnes, Simon A. Morley, Gareth Flint, Lloyd S. Peck   +4 more
wiley   +1 more source

Integrating and assessing metacommunity drivers of ecosystem function and resilience in benthic algal systems

Oikos, EarlyView.
Understanding the scales and mechanisms by which species composition interacts with ecosystem functions is critical for forecasting the effects of environmental perturbations on ecosystem services. However, the linkages between what regulates the ecosystem functions of dispersal‐capable networks of communities (metacommunities) and what regulates a ...
Thomas P. Shannon, Evelyn E. Gaiser
wiley   +1 more source

The importance of biodiversity components differs among wood‐based material Nature's contributions to people (NCP) in a tropical montane ecosystem

Oikos, EarlyView.
Biodiversity can influence forest productivity, but this does not necessarily translate into higher provision of wood‐based Nature's contributions to people (NCP), as only a subset of the wood produced is used for each NCP. Biodiversity–NCP relationships therefore require further assessment.
Koggani Dickson Koggani, Peter Manning, Andreas Ensslin, Gemma Rutten, Armin Komposch, Markus Fischer, Andreas Hemp, Andrea Larissa Boesing   +7 more
wiley   +1 more source

Investigating the Local Scour around Group Bridge Piers in Cohesive Soils

علوم آب و خاک, 2019
One of the main reasons for bridge failure is the local scour around the pier. Pier groups are popular in the structural designs due to economical and geotechnical reasons.
H. Ghafari, M. A. Zomorodian
doaj  

Remote sensing and citizen science for habitat mapping: A machine learning approach to lowland heathland in Surrey, UK

People and Nature, EarlyView.
Abstract In a time of extensive global biodiversity loss, conservation efforts increasingly rely on high‐resolution, accurate, up‐to‐date habitat maps to guide decision‐making and strategic interventions. Many products have been developed in response, using machine learning (ML) methods to automate habitat classification, often relying on satellite ...
Victoria Webster, Ana Andries, Daniel Banks, Andrew Jamieson, Ben Siggery, Mike Waite, Richard Murphy, Stephen Morse   +7 more
wiley   +1 more source

Additive Manufacturing of Glass Fiber‐Reinforced Polypropylene and Its Behavior Under Controlled Hydrogen Exposure

Polymer Composites, EarlyView.
Experimental and numerical assessment of GFRPP under lower experimental hydrogen pressures using tensile testing, SEM analysis, and hydrogen uptake estimation. ABSTRACT Glass fiber‐reinforced polypropylene (GFRPP) composites are increasingly explored for hydrogen transport and storage due to their lightweight nature and corrosion resistance.
Ahmadyar Qureshi, Ulises Martin, Abdul Mannan, Homero Castaneda   +3 more
wiley   +1 more source