Results 61 to 70 of about 17,885 (258)

Urea ammonium nitrate placement methods, row patterns, and irrigation effects on corn productivity in a humid subtropical region

open access: yesAgrosystems, Geosciences & Environment
Crop yields are adversely affected by nitrogen (N) losses in humid subtropical regions. This study was conducted to determine whether N dynamics could be manipulated through planting geometry and fertilizer placement. The effects of irrigation (irrigated
Amilcar Vargas   +6 more
doaj   +1 more source

Aquifer Characterization: The Case of Hawassa City Aquifer

open access: yes, 2021
Hydrogeologists and other water experts agree on that the effective groundwater management requires: firstly, a good understanding of the aquifer system; secondly, identification of practical measures to control abstraction; and thirdly, improvement in groundwater resource through artificial recharge.
Shemsu Gulta, Brook Abate
openaire   +2 more sources

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

open access: yesDeep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu   +4 more
wiley   +1 more source

Cover crops and irrigation impacts on corn production and economic returns

open access: yesAgricultural Water Management
Increases in irrigated crop acreage and frequent droughts during the growing season have caused continual groundwater decline of the Mississippi River Valley Alluvial Aquifer in the Mississippi Delta region.
Dillon Russell   +6 more
doaj   +1 more source

Characterising aquifer treatment for pathogens in managed aquifer recharge

open access: yesWater Science and Technology, 2010
In this study the value of subsurface treatment of urban stormwater during Aquifer Storage Transfer Recovery (ASTR) is characterised using quantitative microbial risk assessment (QMRA) methodology. The ASTR project utilizes a multi-barrier treatment train to treat urban stormwater but to date the role of the aquifer has not been quantified.
Page, D.   +3 more
openaire   +5 more sources

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

open access: yesDeep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li   +4 more
wiley   +1 more source

Provision of Desalinated Irrigation Water by the Desalination of Groundwater within a Saline Aquifer

open access: yesHydrology, 2016
Irrigated land accounts for 70% of global water usage and 30% of global agricultural production. Forty percent of this water is derived from groundwater.
David D. J. Antia
doaj   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

open access: yesDeep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Reduced tillage and cover crop effects on soil moisture and infiltration

open access: yesAgricultural Water Management
Cropping systems that conserve soil moisture are needed to improve yield or reduce irrigation water demand. This study assessed the ability of different tillage systems, subsoiling, and cover crops to conserve soil moisture, reduce soil water depletion ...
Carson Roberts   +9 more
doaj   +1 more source

Spatial and Temporal Potential Groundwater Recharge: the Case of the Doce River Basin, Brazil

open access: yesRevista Brasileira de Ciência do Solo, 2018
: Little is known about the groundwater recharge potential of weathered tropical catchments, where increasing water uptake is widespread to meet various water demands.
Eliana de Souza   +4 more
doaj   +1 more source

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