Results 91 to 100 of about 1,812,137 (388)

Transmission Water Losses at South African Irrigation Schemes: A Case Study of the Vaalharts Irrigation Scheme

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Irrigation water supply is under scrutiny because of dwindling water resources. Most irrigation water in South Africa (SA) is transmitted by canals. Transmission water loss (TWL) accounts for 12% of the irrigation water losses in SA. Therefore, there is a need to investigate and understand the major parameters influencing TWL at Vaalharts ...
M. Mutema   +5 more
wiley   +1 more source

Hydrology of conflicts over shallow groundwater use and management in low coral islands [PDF]

open access: yes, 2002
Groundwater is the major freshwater source in coral islands. Its availability, quality, and management are central to sustainable development and poverty alleviation. Increasing populations, growing per capita demand and restricted land areas limit water
Crennan, L.   +7 more
core  

Clogging Analysis in Drip Irrigation Systems: CFD and DEM Approaches

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Clogging represents a critical challenge that undermines the efficiency and sustainability of drip irrigation systems by inducing uneven water distribution and increasing maintenance requirements. In this study, the phenomenon of clogging in drip emitters was investigated via computational fluid dynamics (CFD) in conjunction with the discrete ...
Nuri Orhan, Berk Kalem
wiley   +1 more source

Changes in hydrology and salinity accompanying a century of agricultural conversion in Argentina [PDF]

open access: yesEcological Applications, 2011
Conversions of natural woodlands to agriculture can alter the hydrologic balance, aquifer recharge, and salinity of soils and groundwater in ways that influence productivity and sustainable land use. Using a land-use change chronosequence in semiarid woodlands of Argentina's Espinal province, we examined the distribution of moisture and solutes and ...
Jayawickreme, Dushmantha H.   +4 more
openaire   +4 more sources

A Novel Approach as a Smart Irrigation Decision Support and Management System Providing Environmental Optimization in Sustainable Irrigation Management: ENORASIS

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT ENORASIS has been developed as a real‐time smart irrigation decision support and management system consisting of weather forecasting systems based on satellite observations, irrigation optimization techniques and wireless sensor networks. This study revealed that irrigation could be managed with ENORASIS without a significant decrease in ...
Bekir Sitki Karatas, Talih Gurbuz
wiley   +1 more source

Carbon dioxide dynamics in an agricultural headwater stream driven by hydrology and primary production [PDF]

open access: gold, 2020
Marcus B. Wallin   +4 more
openalex   +2 more sources

Hydrology [PDF]

open access: yes, 2010
When applied to wetlands, the science of hydrology is concerned with how the storage and movement of water into and out of a wetland affects the plants and animals, and the soils on which they grow.
Campbell, David I.
core   +1 more source

Potential of Photovoltaic and Diesel Off‐Grid Systems for Irrigation in Brazil Considering Carbon Credits

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Irrigation is a crucial practice for the security of rural businesses, ensuring agricultural production even in periods without rainfall. This work aimed to analyse the financial viability of an off‐grid photovoltaic (PV) system as an alternative to traditional energy sources for pumping irrigation in Brazilian agricultural areas.
Giovana Franco Valadão   +5 more
wiley   +1 more source

Agriculture/forestry hydrology [PDF]

open access: yes
There are no author-identified significant results in this ...
Vanderoord, W. J.
core   +2 more sources

Assessing impacts of alternative agricultural land use scenarios on nitrogen leaching with the INCA-N model [PDF]

open access: yes, 2006
The Integrated Nutrients Model for Catchments - Nitrogen (INCA-N) model was applied in Savijoki, a small (15,4 km2) agricultural catchment, in order to analyse possibilities to achieve the targeted 50 % reduction in agricultural nitrogen loading.
Granlund, K., Puustinen, M.
core  

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