Results 21 to 30 of about 1,943,084 (299)

Research on Instantaneous Sediment Concentration in Muddy Coastal Waters Under Extreme Weather Conditions

open access: yesJournal of Marine Science and Engineering
This study addresses a fundamental limitation inherent in conventional sediment transport capacity formulas—their failure to accurately capture real-time fluctuations in suspended sediment concentration.
Qinghui Qi, Dong Xu, Youbin Ding
doaj   +1 more source

Iron‐Mediated Release of Aged Dissolved Organic Carbon From Waterlogged Peatland Under Warming

open access: yesAdvanced Science, EarlyView.
This study conducts a five‐year in situ warming experiment in high‐altitude peatlands to examine dissolved organic carbon (DOC) release. The study shows that warming promotes the release of plant‐derived modern DOC in drained peatlands, but amplifies aquatic export of century‐old DOC from waterlogged peatlands via Fe‐mediated DOC mobilization—a ...
Guohua Dai   +18 more
wiley   +1 more source

Dual-objective optimization strategy of self-adaptive transient pressure controller in water delivery engineering

open access: yesEngineering Applications of Computational Fluid Mechanics
Controlling pressure impact of water hammer is an important guarantee for safe and stable running of pipeline systems. Previously, we proposed a spring self-adaptive auxiliary control (SAC) system to improve the pressure control ability of a surge tank ...
Boran Zhang   +7 more
doaj   +1 more source

Revolutionising Agricultural Sustainability: New ‘Furrow Tillage’ can Mitigate Short‐Term Soil‐to‐Atmosphere CO2 Flux and Promote Soil‐Plant‐Microbe Health

open access: yesAdvanced Science, EarlyView.
Furrow tillage resolves the conventional‐vs.‐no‐tillage trade‐off by simultaneously cutting CO2 efflux to 2.0–3.0 g C m−2 d−1 and unlocking high nutrient availability for the rice rhizosphere. This scalable agronomic solution strengthens soil health, enhances plant physiology, reshapes microbial metabolism, and shifts paddy systems toward a net ...
Arnab Majumdar   +10 more
wiley   +1 more source

Exploring hydraulic dynamics between the urban stormwater pipe and the downstream river based on experiment tests

open access: yesShui kexue jinzhan
High water level in the downstream can be a key factor that influences the drainage capacity of the stormwater pipe. This can form the hydraulic jacking that can substantially affect the operation and prevention of urban flooding. However,there is a lack
Zixuan ZHENG   +5 more
doaj   +1 more source

Groundwater Rise Sustains the World's Largest Alpine Water System Under Global Warming

open access: yesAdvanced Science, EarlyView.
Shallow groundwater depth (SGWD) across the non‐permafrost plains of the Qinghai–Xizang Plateau decreased at averagely 0.02 m year−1, adding 31.44 Gt of freshwater storage from 2000 to 2020 and sustaining ∼53 500 km2 of alpine ecosystems. A vadose‐zone capacity of 426.6 Gt reveals these aquifers as promising reservoirs, highlighting groundwater's ...
Jianqing Du   +15 more
wiley   +1 more source

Soil water retention and gross primary productivity in the Zábrod area in the Šumava Mts.

open access: yesSoil and Water Research, 2008
The synergy between the hydrologic extremes, plant transpiration, gross primary productivity, and soil water retention was studied in the experimental area Zábrod - Meadow in the Šumava Mts.
Miloslav Šír   +4 more
doaj   +1 more source

Deuterium excess and 17O-excess variability in meteoric water across the Pacific Northwest, USA

open access: yesTellus: Series B, Chemical and Physical Meteorology, 2020
High-precision triple oxygen isotope analysis of water has given rise to a novel second-order parameter, 17O-excess (often denoted as Δ17O), which describes the deviation from a reference relationship between δ18O and δ17O.
John Bershaw   +2 more
doaj   +1 more source

Bio-Retention Cells Performance in Restoring the Hydrologic Cycle of Highly Urbanized Catchments [PDF]

open access: yesعلوم آب و خاک, 2023
Rapid urbanization is responsible for impervious area increases and more runoff generation in urbanized catchments. Higher runoff volume in urbanized catchments leads to higher flood risk. One of the methods of runoff management is low impact development
M. Mehri   +3 more
doaj  

Drought Stress Mediated Changes in Food Crops: Mechanisms and Remediation Strategies

open access: yesAdvanced Science, EarlyView.
This work presents a multi‐scale framework for flavonoid‐mediated drought tolerance in staple food crops, integrating ROS redox regulation, antioxidant defense, rhizosphere microbial interactions, and sustainable agronomic practices. This interdisciplinary model provides core insights to develop climate‐resilient cropping systems and enhance global ...
Xiaoyi Duan   +5 more
wiley   +1 more source

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