Log in

Relevant bibliographies by topics / Basic Agricultural Water Engineering / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Basic Agricultural Water Engineering.

Dissertations / Theses on the topic 'Basic Agricultural Water Engineering'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Basic Agricultural Water Engineering.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Lorei, Gary Edward. "Evaluation of a New Storm Water BMP- a Filtration Basin." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1377023792.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Kim, Daeha. "Agricultural Water Management in the Sevier River Basin, Utah: A Multidisciplinary Approach." DigitalCommons@USU, 2015. https://digitalcommons.usu.edu/etd/4362.

Full text

Abstract:

The Sevier River Basin situated in south central Utah is characterized by its semiarid climate, snowmelt-driven runoff, and high dependency on agricultural economy. High evapotranspiration and low precipitation make agricultural production challenging, but naturally stored water in the snowpack in the mountains alleviates water stresses during high water demand seasons. The snowmelt-driven river flow along the main channel is highly exploited for irrigation for farms near the Sevier River. Reservoir operations and river diversions result in heavily regulated flows from the upper to the lower b

APA, Harvard, Vancouver, ISO, and other styles

3

Pease, Lindsay Anne. "Characterization of Agricultural Subsurface Drainage Water Quality and Controlled Drainage in the Western Lake Erie Basin." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461329788.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Moursi, Hossam. "A Risk-Based Assessment of Agricultural Water Scarcity Under Climate Change in a Semi-Arid and Snowmelt-Dominated River Basin." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/4999.

Full text

Abstract:

Water scarcity is the major challenge that water managers face in semi-arid areas, especially in regions that depend on agriculture for rural livelihood. Climate change is one of the major stresses that is expected to exacerbate water scarcity problems in semi-arid regions. In this study, a risk-based approach was used to assess the climate change impacts on the risk of agricultural water scarcity in semi-arid and snowmelt-dominated river basins that are dependent on agriculture. The Sevier River Basin, located in south central Utah, was used as the case study for this work. An agricultural wa

APA, Harvard, Vancouver, ISO, and other styles

5

Choodegowda, Ravikumar B. "Modeling small reservoirs in the Great Plains to estimate overflow and ground-water recharge." Diss., Kansas State University, 2009. http://hdl.handle.net/2097/4610.

Full text

Abstract:

Doctor of Philosophy<br>Department of Biological & Agricultural Engineering<br>James K. Koelliker<br>Small reservoirs catch and store water for long periods and they decrease streamflow and increase ground-water recharge. A field monitoring program provided the measured water depth for four years in several reservoirs in the Republican River Basin where there are concerns about their aggregate effects in the basin. The daily water budget operation for one reservoir was developed. Daily seepage rates were estimated by using precipitation, inflow and evaporation which was assumed equal to grass

APA, Harvard, Vancouver, ISO, and other styles

6

Perez, Luis G. "Development of a Methodology that Couples Satellite Remote Sensing Measurements to Spatial-Temporal Distribution of Soil Moisture in the Vadose Zone of the Everglades National Park." FIU Digital Commons, 2014. http://digitalcommons.fiu.edu/etd/1663.

Full text

Abstract:

Spatial-temporal distribution of soil moisture in the vadose zone is an important aspect of the hydrological cycle that plays a fundamental role in water resources management, including modeling of water flow and mass transport. The vadose zone is a critical transfer and storage compartment, which controls the partitioning of energy and mass linked to surface runoff, evapotranspiration and infiltration. This dissertation focuses on integrating hydraulic characterization methods with remote sensing technologies to estimate the soil moisture distribution by modeling the spatial coverage of soil

APA, Harvard, Vancouver, ISO, and other styles

7

Mounir, Adil. "Development of a Reservoir System Operation Model for Water Sustainability in the Yaqui River Basin." Ohio University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1513880139368117.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Miller, Kayla Marie. "Vegetating Shallow Field Ditches in the Paulding Plains of the Western Lake Erie Basin for Improved Water Quality." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1483622025510358.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Chattopadhyay, Somsubhra. "IMPACT OF CLIMATE CHANGE ON EXTREME HYDROLOGICAL EVENTS IN THE KENTUCKY RIVER BASIN." UKnowledge, 2017. http://uknowledge.uky.edu/bae_etds/50.

Full text

Abstract:

Anthropogenic activities including urbanization, rapid industrialization, deforestation and burning of fossil fuels are broadly agreed on as primary causes for ongoing climate change. Scientists agree that climate change over the next century will continue to impact water resources with serious implications including storm surge flooding and a sea level rise projected for North America. To date, the majority of climate change studies conducted across the globe have been for large-sized watersheds; more attention is required to assess the impact of climate change on smaller watersheds, which ca

APA, Harvard, Vancouver, ISO, and other styles

10

Allam, Mariam M. (Mariam Mohammed Nasr El Din Ibrahim). "Optimal land and water allocation to agriculture and hydropower in the Upper Blue Nile basin." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113470.

Full text

Abstract:

Thesis: Ph. D., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2017<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 178-190).<br>The Nile basin is an ecosystem under stress due to rapid population growth, urgent needs for more efficient utilization of natural resources, potential impacts of climate change, and persistent conflicts between riparian countries on the limited set of resources. This thesis develops a framework for optimal allocation of land and water resources to agriculture and hydropower production

APA, Harvard, Vancouver, ISO, and other styles

11

Bourke, Simone. "Measured and simulated water balances for agricultural fields under water table management." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=107741.

Full text

Abstract:

In southern Quebec, uncertain rainfall and weather patterns can be detrimental to crop growth even though fresh water is an abundant resource. It is therefore desirable to have a good understanding of the water fluxes that occur in the soil profile of a drained agricultural field. Performing a soil water balance is a way to determine the water uses and losses within the soil profile. A seasonal study conducted in 2010 on a 4.2 ha agricultural field in Saint Emmanuel, Quebec aimed to quantify the water fluxes due to both lateral and vertical seepage in conventional (FD) and controlled drainage/

APA, Harvard, Vancouver, ISO, and other styles

12

Hassan, Ahmad. "The contribution by the water table to crop water use." Thesis, University of Newcastle Upon Tyne, 1990. http://hdl.handle.net/10443/142.

Full text

Abstract:

The contribution by the water table to crop water use was evaluated in the absence of surface water application from lysimetric studies in a glassliouse during 1988, 1989 and 1990. The water table contribution was measured for beans, barley and lettuce in the presence of constant water tables 60, 90 and 120 cm deep. The water table contributed to about 27.0, 16.4 and 11.4% of evapotranspiration of barley with water tables 60, 90 and 120 cm deep, respectively. The contribution in lettuce was found to be 34.7, 13.5 and 6.0% for the 60, 90 and 120 cm water tables, respectively. The water table co

APA, Harvard, Vancouver, ISO, and other styles

13

Singh, Ajay. "Water and nitrogen use efficiency of corn (Zea mays L.) under water table management." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=116989.

Full text

Abstract:

Drainage and water table management are essential for crop production in humid regions. Water table management not only increases crop yield, but also reduces nitrate leaching to water bodies. This study investigated the water and nitrogen use efficiency of corn under two water management conditions and three nitrogen fertilizer levels. The sap flow heat balance method was used to measure the daily water uptake of corn, over an extended period of the growing season. The impacts of climate change on grain corn and biomass yield in eastern Canada under tile drained conditions was also evaluated

APA, Harvard, Vancouver, ISO, and other styles

14

Aladenola, Olanike. "Decision support system for irrigation water management." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123181.

Full text

Abstract:

Abstract Variability in seasonal precipitation, potential climate change impacts, competition for water among users, rising population and increasing food demands are putting pressure on agricultural water demands. For irrigated agriculture in Canada to play a major role in addressing current and future global food supply problems, more innovative and sustainable irrigation management approaches are required. In this context a decision support system that ensured more effective irrigation water allocation, application and optimisation was developed. Crop water requirements and irrigation sche

APA, Harvard, Vancouver, ISO, and other styles

15

Alghamdi, Mohammed Hamed. "Irrigation practices and agricultural water extension : the problem of water conservation in Al-Hassa oasis, Saudi Arabia." Thesis, University of Glasgow, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308191.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Richards, Johanna. "Drought assessment tools for agricultural water management in Jamaica." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97212.

Full text

Abstract:

Increasing urban development, in addition to changing climatic conditions, are just a few of the factors negatively impacting Jamaica's water resources. Therefore, conceptual tools are required for the management of water resources during water scarce conditions. Such tools include drought indices, irrigation requirement guidelines and computer simulation models for irrigation planning.Monthly irrigation demands were calculated for three sites in Jamaica: Savanna-la-mar in the parish of Westmoreland, Beckford Kraal in the parish of Clarendon, and Serge Island in the parish of St. Thomas. This

APA, Harvard, Vancouver, ISO, and other styles

17

De, Swardt Gerard. "Re-coding of UCTPHO and UCTOLD in Visual Basic for Applications." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/22751.

Full text

Abstract:

UCTOLD, IAWPRC and UCTPHO are activated sludge system diurnal simulation software programs written and compiled in TurboPascal 3.1 by the Water Research Group at the University of Cape Town in the late 1980s and early 1990s. IAWPRC is identical to International Water Association (IWA) Activated sludge Model No 1 (ASM1, Henze et al., 1987) and UCTOLD is an earlier variation of ASM1 that makes no material difference to simulation results when each are run with their default parameters – the difference is explained by Dold and Marais (1985). Details on the use of UCTOLD and IAWPRC was published b

APA, Harvard, Vancouver, ISO, and other styles

18

Bernier, Marie-Hélène. "Assessing on-farm water use efficiency in southern Ontario." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32251.

Full text

Abstract:

Assessing On-Farm Irrigation Water Use Efficiency in Southern Ontario In southern Ontario, irrigation is essential for high value horticultural crop production to overcome insufficient rainfall and achieve stabilized crop production. In a context where competition for limited water resources intensifies due to the expansion of the agricultural sector, increasing urban development and tourism, and potential climate change impacts, conserving water through efficient irrigation has become a key solution to a

APA, Harvard, Vancouver, ISO, and other styles

19

Lalonde, Vincent. "Some hydrologic and environmental benefits of water table management." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69663.

Full text

Abstract:

A water table management field experiment was established and conducted on a sandy loam soil in 1991 and 1992. The effects of two water tables levels, as well as conventional drainage, on nitrate levels in drainage outflow were studied. The controlled water table levels were 25 and 50 cm above the drain. The experimental setup consisted of 9 monitored drains and 6 buffer drains. Plots were centred over the drains and were 115 m long by 18.69 m wide. Drain outflow, nitrate concentration in the drainage water, soil temperature, rainfall, and water table elevations were measured during the 1992 g

APA, Harvard, Vancouver, ISO, and other styles

20

Aubin, Eric. "Impact of water table management on ground water contamination by two herbicides." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55410.

Full text

Abstract:

Two field investigations were undertaken to study the role of water table management in reducing herbicide pollution of ground water. One of the three-year studies (1992-1995) was conducted in a sandy field near Joliette (Laurin farm), (Quebec) to monitor the herbicide metribuzin where potatoes were grown. Two water table management systems were evaluated, namely subsurface drainage and subirrigation. Soil and ground water samples were taken at two week intervals, once before and six times after the herbicide application.<br>The amount of rainfall received in the first few weeks following herb

APA, Harvard, Vancouver, ISO, and other styles

21

Akhand, Md Nurul Alam. "A canal irrigation water allocation model." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/185910.

Full text

Abstract:

A water allocation model was developed to assist with allocation of canal water to competing crop irrigation demands. Multi-period linear programming was utilized to optimally allocate water in both time and space to maximize benefits for an irrigated farm. Irrigation scheduling, crop response and canal water delivery models were used to support the water allocation decisions. The irrigation scheduling model supplied information on crop evapotranspiration and soil water storage. The crop response model predicted crop yield in response to the irrigation water applications. The canal delivery mo

APA, Harvard, Vancouver, ISO, and other styles

22

Sharpe, Desmond. "Using a Hydrologic and Storm Water Model to Predict the Movement of Water Soluble Tracers via Surface Water Runoff at the Cherry Point Marine Corps Air Station." NCSU, 2009. http://www.lib.ncsu.edu/theses/available/etd-11052009-122939/.

Full text

Abstract:

GPS and stormwater models are two extremely powerful technologies that can effectively predict the movement of rainfall runoff and soluble pollutants via surface water, when applicable correctly. Using the Cherry Point Marine Corps Air Station, North Carolina, topographic information, historical and observed rainfall datasets, streamflow measurements, subsurface conduits attributes and GPS acquired data was inserted into XPSWMM to model the downstream movement of user-defined tracer elements. The overall objective of the research was to develop a hydrologic/hydraulic model to predict pollutant

APA, Harvard, Vancouver, ISO, and other styles

23

Ashraf, Muhammad. "Dynamics of soil water under non-isothermal conditions." Thesis, University of Newcastle Upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336299.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Marques, Guilherme Fernandes. "Economic representation of agricultural activities in water resources systems engineering /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Williams, Sarah Elizabeth. "The agriculture-water interface : policy integration and the environment." Thesis, University of Hull, 1997. http://hydra.hull.ac.uk/resources/hull:3490.

Full text

Abstract:

Although current environmental policies may prove successful against narrowly defined criteria of economic, social or environmental sustainability, it is by no means certain that the sustainability of inter-dependent economic and environmental systems will be assured. In fact, policy intervention may result in the displacement of environmental problems to other media, times or places. Farmers are the focus for divergent forces of state, market and social regulation and in consequence their response, or more importantly non-response, to environmental policies cannot be assessed in isolation. Th

APA, Harvard, Vancouver, ISO, and other styles

26

Al-Amoud, Ahmed Ibrahim. "A water management model for trickle irrigated row crops." Thesis, Cranfield University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292233.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Copeland, Russell Dean 1963. "Hydraulic, water and energy use evaluation of subsurface trickle irrigation system." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278073.

Full text

Abstract:

The hydraulics, water use, and energy use of a two year old subsurface drip irrigation system installed at the Maricopa Agricultural Center in southern Arizona were examined to evaluate the performance of typical subsurface drip irrigation systems. Although the pressure distribution was better than expected due to the effect of the looped network, the average discharge rate of the drip tape decreased by 20% as reflected by the change in the discharge coefficient from 0.45 to 0.36 over two years and emitter plugging resulted in the statistical uniformity being only 64.6%. Water use was higher t

APA, Harvard, Vancouver, ISO, and other styles

28

Stephens, Dallin Paul. "The Transfer of Agricultural Water to Municipal and Industrial Usages." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/834.

Full text

Abstract:

The water that is available for beneficial use in Utah is quickly approaching full appropriation; water that has been claimed is nearing the amount that is available for use. The Division of Water Resources of the State of Utah has organized a three-part plan to "Plan, Conserve, Develop and Protect Utah's Water Resources." One of these three elements has a focus to "provide comprehensive water planning." Such planning is best achieved when current and accurate data on the uses of the state's water are available. The primary purpose of this thesis was to provide an evaluation, from data colle

APA, Harvard, Vancouver, ISO, and other styles

29

Farrar, Lauren Judy. "The free basic water policy of South Africa : an evaluation of its implementation." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/13198.

Full text

Abstract:

Includes bibliographical references.<br>South Africa is still feeling the effects of the forced inequalities the apartheid system introduced and the resulting wide-spread poverty. Inequalities are particularly evident in the quality of services provided to different areas, which are in the majority still defined by race. The majority of White households have very good service provision, with water piped directly into the home. A great number of Black and Coloured households, by contrast, have very low levels of service where family members have to walk to collect water from communal taps. To t

APA, Harvard, Vancouver, ISO, and other styles

30

Gillingham, Mary Elizabeth. "Gaining access to water : indigenous irrigation on Mount Kilimanjaro, Tanzania." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266305.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Ghane, Ehsan. "Evaluation of two technologies for enhancement of crop yield and drainage water quality." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1406114668.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Simas, Maria Joao Correia de 1966. "Soil water determination by natural gamma radiation attenuation." Thesis, The University of Arizona, 1993. http://hdl.handle.net/10150/278348.

Full text

Abstract:

The purpose of the study was to determine the soil moisture content by measuring the naturally occurring gamma radiation in the soil. A calibration procedure was developed both in laboratory and in the field. In the laboratory, two different sample sizes were used: three-inch diameter, and 18-inch diameter columns, both 15 cm long. Small size soil samples (three-inch diameter) cannot be used to predict the calibration curve in the field, whereas the larger soil samples (18-inch diameter) calibration may be used to predict the field calibration curve. The prediction limits for the calibration c

APA, Harvard, Vancouver, ISO, and other styles

33

Batchily, Abdul Karim 1952. "Use of Chroma Meter color measurements to evaluate the organic carbon, iron, and water content of soils." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277947.

Full text

Abstract:

The soil color components of 127 samples from five Arizona Agricultural Research Centers and 52 WEPP samples occurring in various parts of the U.S.A. were evaluated using a Minolta Chroma Meter. This instrument is designed to minimize the variability in color determination utilizing a built-in light source to generate a primary source of radiation. Simple and multiple linear regression equations relating Hue, Value, and Chroma color components were obtained to predict the organic carbon and iron content of these soils. The results show that using global data is less reliable than specific grou

APA, Harvard, Vancouver, ISO, and other styles

34

El-Sheikha, Dial-Deen Mohamed. "Remote sensing of water and nitrogen stress in broccoli." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/280349.

Full text

Abstract:

Remote sensing is being used in agriculture for crop management. Ground based remote sensing data acquisition system was used for collection of high spatial and temporal resolution data for irrigated broccoli crop. The system was composed of a small cart that ran back and forth on a rail system that was mounted on a linear move irrigation system. The cart was equipped with a sensor that had 4 discrete wavelengths; 550 nm, 660 nm, 720 nm, and 810 nm, and an infrared thermometer, all had 10 nm bandwidth. A global positioning system was used to indicate the cart position. The study consisted of t

APA, Harvard, Vancouver, ISO, and other styles

35

Thadei, Simon Yuda. "Evaluation of effective rainfall by a physically-based soil-water balance model." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316263.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Pan, Luan. "Means to optimize soil water management through monitoring spatial and temporal variability of geophysical soil attributes." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117181.

Full text

Abstract:

To optimize irrigation water use, temporal and spatial sensor-based data related to soil water content were integrated. Nine locations in a 37-ha agricultural field were selected using field elevation and soil ECa maps for monitoring the soil matric potential and temperature at four depths (18, 48, 79 and 109 cm) with a wireless sensor network. Using a linear regression approach, a series of time-specific equations were developed to quantify both the temporal and spatial soil water stress status through a Water Stress Index (WSI). The WSI was estimated using soil matric potential measurements

APA, Harvard, Vancouver, ISO, and other styles

37

Damak, Maher Ph D. Massachusetts Institute of Technology. "Advanced methods for droplet capture in water recovery systems and agricultural sprays." Thesis, Massachusetts Institute of Technology, 2018. https://hdl.handle.net/1721.1/122889.

Full text

Abstract:

Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 161-181).<br>Water scarcity is one of the important challenges of our century. In this thesis, we investigate advanced methods to mitigate it in two ways: water recovery from fog and reducing chemicals runoff in agriculture. In the first part, we review current fog collector design and identify droplet deviation around the wires of mesh collectors as the main bottleneck in water collection. We introduce an elect

APA, Harvard, Vancouver, ISO, and other styles

38

Al-Qudah, Hussein. "Optimal irrigation management under conditions of limited water supply in the Jordan Valley." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243295.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Hales, Alwin Livingstone. "A model to determine optimal water management procedures for multi-variable irrigation systems." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259483.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Prenger, Jessica J. "Development of a Plant Response Feedback Irrigation Control System Based on Crop Water Stress Index and Evapotranspiration Modeling." The Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1419601844.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Qiao, Shuang Ye. "Modeling water flow and phosphorus fate and transport in a tile-drained clay loam soil using HYDRUS (2D/3D)." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123033.

Full text

Abstract:

Phosphorus (P) is an important agricultural non-point source pollutant that could contribute to eutrophication of surface waters. In this study, the HYDRUS (2D/3D) model was evaluated for simulation of water flow and P transport in a clay loam soil in southern Ontario. The model was calibrated and validated using field data from two 0.1 ha test plots between 2008-2011. These plots have controlled tile drainage and a corn-soybean crop rotation. The surface and sub-surface water flows in test plots were monitored and samples collected continuously year round using an auto-sampling system. The mo

APA, Harvard, Vancouver, ISO, and other styles

42

Oliveira, Aureo Silva 1965. "Determination of head lettuce crop coefficient and water use in central Arizona." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282779.

Full text

Abstract:

The assessment of crop evapotranspiration (ET) has received intensive research due to its critical role in irrigation management and water conservation studies. Because weather conditions largely determine ET, various methods based on meteorological factors have been developed to estimate ET rates. In order to accommodate the concept of reference crop ET (ETo), evaluation of weather data quality has been addressed. In this research, 9 year (1989-1997) weather data from the AZMET weather station at the Maricopa Agricultural Center were used to compare daily and 10 day average ETo estimated by t

APA, Harvard, Vancouver, ISO, and other styles

43

Alsanabani, Mohamed Moslih. "Soil water determination by time domain reflectometry: Sampling domain and geometry." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185550.

Full text

Abstract:

This work investigates several aspects of time domain reflectometry (TDR) theory and application. One of these aspects is the study of the influence of TDR probe geometries on the travel time. No change in the travel time resulted from increasing either the diameter of wire or spacing. However, we found a linear relationship between the travel time and the length of the probe for measurements in water. Also we found the reflected voltage was inversely proportionally to the incident voltage in water. Another aspect is the volume of sensitivity for the TDR which depends on the electrical propert

APA, Harvard, Vancouver, ISO, and other styles

44

Baig, Muhammad Anwar. "Monitoring the transport of salts and water using time domain reflectometry." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186469.

Full text

Abstract:

An automated method for the simultaneous measurement of water content, soil water pressure, and soil bulk electrical conductivity in soil columns was developed based on time domain reflectometry (TDR), three wire probes and pressure transducers. Soil electrical conductivity was calculated from the attenuated transmitted pulse, and soil moisture from the trace length and the dielectric constant. The above methodology was used for monitoring breakthrough curves at various depths in soil columns and for determining concentration and ionic composition effects on saturated hydraulic conductivity (H

APA, Harvard, Vancouver, ISO, and other styles

45

Hashtroudi, Hanie. "Using agricultural wastes to treat lead-contaminated water in Western Australia." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2018. https://ro.ecu.edu.au/theses/2086.

Full text

Abstract:

Aqueous solutions are becoming increasingly contaminated in all parts of the world (2015). Heavy metals are toxic contaminants that are mainly distributed in urban stormwater run-off and industrial wastewaters as a result of some mining operations, electronic assembly planting, battery manufacturing, and etching operations (Kadirvelu et al. 2001). Pb (II) is a heavy metal that causes significant damage in the human body. Drinking lead-contaminated water even at low concentrations may cause lifethreatening conditions such as cancer, kidney damage, brain damage, and liver problems (El-Said 2010)

APA, Harvard, Vancouver, ISO, and other styles

46

Belda, Gonzalez Alberto. "The Water-Energy-Agriculture nexus in Jordan : A case study on As-Samra wastewater treatment plant in the LowerJordan River Basin." Thesis, KTH, Energiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232826.

Full text

Abstract:

Historically, water, energy and agricultural resources have been naturally scarce in Jordan, but current economic, demographic, geopolitical and environmental conditions are aggravating the situation. The influxes of refugees are increasing the already high natural population growth; better economic conditions and living standards are changing consumption and production patterns; surrounding conflicts affect the supply of resources; and negative effects associated to climate change can be noticed already. Therefore, nexus thinking as a basis for integrated and cross-sectorial natural resources

APA, Harvard, Vancouver, ISO, and other styles

47

Gadipudi, Rao K. "Evaluating the effects of agricultural practices on water quality by interfacing GIS with computer models." FIU Digital Commons, 1994. http://digitalcommons.fiu.edu/etd/3431.

Full text

Abstract:

Nonpoint source pollution from agricultural activities significantly impacts quality of receiving water bodies, including increases in stream sediments and nutrients, and occurrence of pesticides in both surface and ground water. Agricultural activities in the West Wellfield Interim Protection Area (WWIPA), located in West Dade County in South Florida, have potential to impact both the environmentally sensitive Everglades and Florida Bay, and the Biscayne aquifer. The Hydrological Simulation Program-Fortran (HSPF) has been used to simulate water and constituent transport in the WWIPA and to d

APA, Harvard, Vancouver, ISO, and other styles

48

Kosmerl, Paul F. "Water Balance of Retrofit, Right-of-way Rain Gardens." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1337347745.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Marbis, Juan Manuel. "CO2 Enrichment and Hot Water Heat in a Greenhouse as a Mean of Recovering Bioresources From Swine Waste." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010822-165338.

Full text

Abstract:

<p>ABSTRACTMarbis, Juan M. CO2 Enrichment and Hot Water Heat in a Greenhouse as a Mean of Recovering Bioresources From Swine Waste. (Under the direction of Daniel H. Willits) Predictions of heating and cooling requirements of a greenhouse located at the Barham Farm, Zebulon, N.C. were made via computer simulation. Kimball?s Modular Energy Balance Model (MEB) was used to simulate thermal behavior of the greenhouse. The weather inputs to the model were provided by data collected at the greenhouse and a Typical Meteorological Year (TMY2) data file for Raleigh, NC. Greenhouse air temperature (Tai)

APA, Harvard, Vancouver, ISO, and other styles

50

Littlejohn, Alex. "Nutrient mitigation capacity of low-grade weirs in agricultural drainage ditches." Mississippi State University, 2013.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!