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Full-Text Articles in Physical Sciences and Mathematics
Daytime Versus Nighttime Sprinkler Irrigation Of Two Urban Crops In A Semi-Arid Climate At High-Elevation, Samikshya Pyakurel
Daytime Versus Nighttime Sprinkler Irrigation Of Two Urban Crops In A Semi-Arid Climate At High-Elevation, Samikshya Pyakurel
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Nighttime irrigation scheduling is a longstanding water conservation approach to reduce evaporative losses in Utah's semi-arid, urban landscapes. However, residential demand now exceeds system capacity, and the efficiency of the practice has come under question. Therefore, the objectives of this study include: 1) quantify whether a water savings exists between day and night irrigation with a water balance and energy balance approach, and 2) analyze microclimate and crop quality effects to determine any changes to evaporative demand or plant stress by irrigation timing. In 2019, we established 12 field plots in North Logan, UT (41.77° N, -111.81° W, 1380 m …
Linking Montane Soil Moisture Measurements To Evapotranspiration Using Inverse Numerical Modeling, Ling Lv
Linking Montane Soil Moisture Measurements To Evapotranspiration Using Inverse Numerical Modeling, Ling Lv
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Evapotranspiration (ET) and soil moisture play important roles in annual water delivered from snowpack to reservoirs, lakes and streams. Indeed, ET and soil moisture are key factors dictating the performance of the regional climate models in the intermountain west (IMW) of the USA. Water resources management and climate modeling require accurate prediction of ET and areal soil moisture for reliable estimates of ongoing and future water needs. This research has examined ways to estimate ET from four common vegetation types in the IMW (aspen, conifer, grass and sage) using local soil moisture measurements from an advanced instrumentation network located in …
A Formula To Express Evapotranspiration As A Function Of Soil Moisture And Evaporative Demands Of The Atmosphere, Aldo L. Norero
A Formula To Express Evapotranspiration As A Function Of Soil Moisture And Evaporative Demands Of The Atmosphere, Aldo L. Norero
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A mathematical expression was developed and tested which describes the relation between evapotranspiration and soil moisture. A general premise of this mathematical model is that the evapotranspiration-soil moisture relationship is determined by interaction of climatic, soil and plant factors. The basic model is
dETa/dYs = -ke[1-(ETa/ETmx)]
in which ETa is the actual evapotranspiration, Ψs is the total soil water potential, k is a proportionality coefficient, ∈ is the soil moisture extraction capacity of the atmosphere , and ETmx is the evapotranspiration that would occur from a particular crop-soil unit when soil moisture was …
The Influence Of Advective Energy On Evapotranspiration, Mahmoud Abdel Aziz
The Influence Of Advective Energy On Evapotranspiration, Mahmoud Abdel Aziz
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Evaporation and transpiration from the soil and plant, respectively, have received increasing attention from those who work with water supply, irrigation, and drainage.
The Influence Of Soil Moisture Suction And Evaporative Demand On Actual Evapotranspiration And Yield Of Alfalfa, Bozorg Bahrani
The Influence Of Soil Moisture Suction And Evaporative Demand On Actual Evapotranspiration And Yield Of Alfalfa, Bozorg Bahrani
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Evapotranspiration has been defined as the combination of evaporation of water from the soil surface and transpiration of water by vegetation. If the ground is well covered by plants, most of the water is lost by transpiration of water directly from the plant tissue, rather than by evaporation of water directly from the soil surface. The term consumptive use is synonymous with evapotranspiration.