Private Irrigation Water Use in the Central Florida Ridge

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Private Irrigation Water Use in the Central Florida Ridge Melissa Baum Haley Agricultural & Biological Engineering University of Florida

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Why Study Residential Irrigation? Mortgage holders covet green yards Irrigation frameworks introduced in most recently assembled homes Uneven rain occasions

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Water Use in Florida Residential water utilize contains 61% of people in general supply, in charge of 43% of groundwater pulled back. Somewhere around 1970 and 1995 there was a 135% expansion in groundwater withdrawals. Almost 30% of the is pulled back April through June. Florida devours more crisp water than some other state east of the Mississippi River.

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Objectives of Study Irrigation water utilization Irrigation planning Microirrigation in slept with zones Residential System Uniformity Control System Uniformity Evaluation of Uniformity Procedure Uniformity Based on Soil Moisture

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Where Research was Conducted

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Water Use Three medications with various water system booking, scenes, and hardware Weather information recorded Installed stream meters on main water system line Recorded aggregate property water utilization

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Treatment 1 Typical scene Turf range > Bedded region Typical water system rehearses

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Treatment 2 Typical scene Turf region > Bedded zone Irrigation plan in view of chronicled ET prerequisites

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Treatment 3 Atypical scene Turf territory < Bedded region Irrigation plan in light of authentic ET necessities Use of microirrigation in the had relations with zones

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Examples of Microirrigation in T3

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Irrigation Scheduling for T2 and T3

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Landscape Percentages

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Evapotranspiration and Rainfall Weather stations at each of the areas Downloaded month to month ET figured

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Turf Quality NTEP quality rating strategy Quality watched regularly

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Monthly Water Input and Requirement Effective precipitation in addition to connected water system for every treatment contrasted with evapotranspiration

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Water Use Conclusions

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Non - consistency (100% consistency (100% consistency 100% consistency Adequate water system Adequate water system Adequate water system not reasonable) not commonsense) not pragmatic Uniformity Testing Why is consistency imperative? How is consistency not the same as proficiency?

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Uniformity Testing How to test for consistency? How is consistency computed?

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Testing Locations Residential Systems – existing in-ground water system frameworks Control Systems – directed weight, dividing at half of producers appraised measurement

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Testing Procedures Place get jars in a network arrangement To diminish edge impacts, inset from limit Test framework and head weight Wind blasts < 3.2 m/s Run times Spray zones = 25 min Rotor zones = 45 min

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Comparison of Equipment Brands A, B, C Commonly introduced by temporary workers Fixed and customizable spouts Tested at prescribed, low and high weights

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Results: Residential versus Control Systems Higher DU lq for control tests Control avg = 0.53* Homes avg = 0.45** *recommended weight **grid development

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High Uniformity Pattern Spray head with quarter hover spout at suggested weight DU lq avg = 0.66

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Low Uniformity Pattern Spray head at low weight DU lq avg = 0.33

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Comparison of Head Type – Residential Systems Rotor heads had higher DU lq Rotor avg = 0.49 Spray avg = 0.40 P = 0.09 (91% certainty)

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Comparison of Head Type – Control Systems Rotor heads have higher DU lq Regardless of weight Rotor avg = 0.55 Spray avg = 0.48 P = 0.007 (99.3% certainty)

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Control Rotor Head Uniformity Brands: A, B, C Pressures: Low, Recommended Significant contrasts crosswise over brand No huge distinction crosswise over weight

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Control Spray Head Uniformity Brands: An, An adj., B, B-adj., C Pressures: Low, Recommended, High Significant contrasts crosswise over brand Significant contrast crosswise over weight Interaction amongst weight and brand

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Equipment Testing Conclusions Uniformity is influenced by: Irrigation outline Equipment choice System weight Rotor makes a beeline for have higher consistencies Low weight lessened consistency

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Testing Method Comparison Uniformity strategy in this study framework arrangement +100 catch-jars per zone MIL technique irregular position in focus of zone 16-24 get jars for each zone

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Results: MIL Procedures Average MIL DU lq = 0.53 Average Home DU lq = 0.43 Average Home DU lq simulating MIL methodology = 0.55

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Time Domain Reflectometry (TDR) Device used to quantify soil water content, by estimations of the volumetric water content (VWC) Relates the time required for an electrical flag to go along wave guides Must be aligned Sensitive to salt substance in the dirt

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Why Test with the TDR Determine a brisk and simple technique for figuring framework consistency Compare the consistency values from the TDR gadget to the regularly honed catch-can test The TDR gadget ought to give precise consistency values since it depends on the dirt dampness content

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Testing Procedures Place get jars in a network development Wind blasts < 3.2 m/s Run times Spray zones = 25 min Rotor zones = 45 min Use TDR at every estimation area to decide VWC

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Results: Uniformity Comparison

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Comparison of Uniformity Values

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Results: Point Difference Average Point Difference between strategies 0.20 TDR DU is higher In concurrence with past work

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Results: Measurements

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Comparison of Measurements

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Differences in Measurement Range TDR Scale 0-45% VWC Catch-Can Scale 0-1500 mL

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Effects of an Irrigation Event What is the TDR consistency before a water system occasion? is the DU lower? is the DU the same (similarly high)?

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TDR Pre-Irrigation Results The DU qualities were lower Pre-water system: 0.55 Post-water system: 0.64 This implies the dirt properties are influencing the consistency comes about

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Difference between Methods TDR doesn't quantify appropriately spreading tests If TDR is measuring legitimately Maybe consistency doesn't make a difference that much TDR measures higher in light of the fact that what's in the jars doesn't mirror what's going on in the dirt redistribution

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Soil Moisture versus Volume Conclusions Catch-Can DU is more regrettable in light of zero qualities Catch-can doesn't recount to us the entire story Ignores the dirt properties Too much variety between the DU lq values dictated by the TDR gadget and the catch-can technique. The TDR gadget may not be a feasible strategy for consistency comes about

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Overall Conclusions Homeowners over-flood Irrigation planning diminished water utilize altogether Micro-water system in had relations with regions diminished water utilized for water system Residential framework consistency was lower than anticipated Rotor head zones have a tendency to have higher consistency than shower head zones The reported MIL consistencies were higher than the consistencies from this venture The method (number and arrangement of jars) has an impact There was not a connection between's dirt dampness and can volume

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Thank You for Your Attention Acknowledgments I might want to thank the cooperators for taking an interest in this work, and the accompanying people for specialized support: Danny Burch, Clay Coarsey, Jeff Williams, Brent Addison, and Justin Gregory. I might likewise want to thank my Graduate Committee for direction and persistence. An uncommon thank you to Dr. Michael D. Dukes for being an awesome master!