Results 71 to 80 of about 136,083 (308)

Surface Energy Flux Estimation in Two Boreal Settings in Alaska Using a Thermal-Based Remote Sensing Model

open access: yesRemote Sensing, 2020
Recent Arctic warming has led to changes in the hydrological cycle. Circum-Arctic and circumboreal ecosystems are showing evidence of “greening” and “browning” due to temperature warming leading to shrub encroachment, tree mortality and deciduousness ...
Jordi Cristóbal   +5 more
doaj   +1 more source

Transferring and Constructing Knowledge: Designing an STC [PDF]

open access: yes, 2003
This article describes the design and benefits of a Science and Technology Center (STC)- based workshop sponsored by the National Science Foundation (NSF).
Jim Washburne   +4 more
core  

Impact of Irrigation Scheduling on Corn Yield and Water Balance in Sandy Soils of Central Minnesota Using the EPIC Model.

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Efficient irrigation scheduling is critical in sandy soils to achieve optimum yield and maximum net benefit with minimum environmental concerns. The Environmental Policy Integrated Climate (EPIC) model was used to study the impacts of autoirrigation of corn on crop yield and soil water balance during 2019–2021 at −300 and −450 kPa for loamy ...
Muhammad Tahir   +3 more
wiley   +1 more source

New Drain Spacing Formulas Using the Variational Iteration Method

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT In this study, the drain spacing is computed using the variational iteration method (VIM) to the linearized Boussinesq equation. By applying at most two iterations of the VIM method under three different initial condition scenarios, three equations for drain spacing calculation were derived. These equations predict values of drain spacing that
George Kargas   +2 more
wiley   +1 more source

Hydrological Drought Index Insurance for Irrigated Agriculture [PDF]

open access: yes, 2017
Los riesgos de escasez de agua en sistemas de regadío son importantes en los países semi-áridos y es probable que aumenten debido al cambio climático. De ahí deriva el interés en ofrecer a los agricultores la posibilidad de proteger la estabilidad de los ingresos de las explotaciones de regadío frente a este riesgo.
openaire   +2 more sources

Modeling of hydrological processes in arid agricultural regions [PDF]

open access: yesFrontiers of Agricultural Science and Engineering, 2015
Understanding of hydrological processes, including consideration of interactions between vegetation growth and water transfer in the root zone, underpins efficient use of water resources in arid-zone agriculture. Water transfers take place in the soil-plant-atmosphere continuum, and include groundwater dynamics, unsaturated zone flow, evaporation ...
David A. BARRY   +3 more
openaire   +2 more sources

Does the Application Flow Rate of Nutrient Solutions Prepared in Brackish Water Affect Coriander Production?

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Flow rates for applying nutrient solutions in hydroponic systems are empirically known, yet uncertainties remain regarding whether brackish water affects the optimal flow rate and, consequently, biomass production and allocation. This study evaluated whether variations in application flow rate affect coriander biomass when brackish water is ...
Raphaela Revorêdo Bezerra   +7 more
wiley   +1 more source

Change in the Length of the Vegetation Period of Tomato (Solanum lycopersicum L.), White Cabbage (Brassica oleracea L. var. capitata) and Carrot (Daucus carota L.) Due to Climate Change in Slovakia

open access: yesAgronomy, 2020
Climate change is affecting all sectors of human activities worldwide, including crop production. The aim of the paper was to evaluate the average daily air temperatures measured at one hundred meteorological stations across Slovakia in 1961–2010 and ...
Ján Čimo   +7 more
doaj   +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

Smart Sensor‐Integrated Lysimeter System for Affordable on‐Farm Crop Water Monitoring and Irrigation Management

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Accurate monitoring of crop water use is critical for precision irrigation, yet conventional lysimeter systems remain too costly and complex for widespread adoption. This study presents the development and field validation of a low‐cost, information and communication technology (ICT)‐enabled weighing lysimeter system that integrates load cells,
Stephen Okwang, Younggu Her, Taeil Jang
wiley   +1 more source

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