EcoSagacity Tempe-style

Positioning for Landscape Positioning for Landscape Positioning for Landscape Positioning for Landscape Quality ManagementQuality Management

A Rational Approach to Landscape Life-cycle MManagement

Copyright © 2010 by Tom A. Reynolds

Landscape Quality ManagementLandscape Quality ManagementLandscape Quality ManagementLandscape Quality Management

The Maintenance Excellence Institute defines maintenance as: The Function of keeping items or equipment in, or restoring them to, serviceable condition.

A great example of this, for our purposes, is a top ranked golf club. The players expect consistent playability. …and will attribute success or failure of consistent playability to the quality of the club’s management. g


Landscape Quality ManagementLandscape Quality ManagementConservation Achievements Conservation Achievements ≠≠ Landscape QualityLandscape QualityConservation Achievements Conservation Achievements ≠≠ Landscape QualityLandscape Quality


Landscape Quality ManagementLandscape Quality ManagementLandscape Quality ManagementLandscape Quality Management

• quality control, quality control, • quality assurance and • quality improvement.


Our Irrigation Design Models Our Irrigation Design Models -- Can Can W G h W Ri h ?W G h W Ri h ?We Get the Water Right?We Get the Water Right?

⎟⎞

⎜⎛ HAxPF

⎟⎠⎞

⎜⎝⎛ += SLA

IEHAxPFEToETWU )62.0)((

Projected Costs of Water At the Water Use Efficiency Criteria We Jointly Established

DU

PSI


Three Rational QuestionsThree Rational Questions-- Laurence Peter (1919 Laurence Peter (1919 -- 1990) 1990)

1. Where am I?2. Where do I want to be?3. How do I know I am getting there?


Going To Home Without First Making It To 2Going To Home Without First Making It To 2ndnd or 3or 3rdrd

Owner buys the Plan Without

Upgrades.

The Plan is pretty.

Owner told what he wants to hear “Plan will take

O d i d f h h i

Plan will take you to home,

relatively speaking.”

Owner (batter) asks design team, “Where

am I ?”

Owner advised of where he is.

Owner balks at topsoil plating, ductile iron fittings, better controller +

software & fert. -injection system.j y

Likely where train begins to run off the track.


Furthermore, Furthermore, The Establishment Period The Establishment Period Conundrum Conundrum Conundrum Conundrum ––You Can’t Manage What You Do Not Understand (Yet) You Can’t Manage What You Do Not Understand (Yet)

- Learning still underway

- Human Factor Type A

- Human Factor Type B


Okay. So What?Okay. So What?TwoTwo--pronged Approach Recommended pronged Approach Recommended –– Design StipulationsDesign Stipulations

GOOD NEWS ! GOOD NEWS ! Advanced Irrigation Design and Post-Design Tools !

CAD S ft • CAD Software • Space Pro• EPANet• Drip Uniformity Predictor Tool• Drip Uniformity Predictor Tool• Soil-by-Zone Tool• Soil Moisture Survey and Map Tool• Water Balance Base Scheduler Tool• Closed-Loop Soil Moisture Feedback Add-on• Plant Growth Tracker• Neutron probe or Digital TDT Soil Moisture with Data Reporter• Soil Nutrient Suction Lysimeters and Photometric Comparators


Okay. So What?Okay. So What?TwoTwo--pronged Approach Recommended pronged Approach Recommended –– Design StipulationsDesign Stipulations

IRRIGATION DESIGN CONSTRAINTS (Ver. 1.4)

(SYSTEM DISTRIBUTION UNIFORMITY @ DESIGN PRESSURE)

Emitter Design Pressure (PSI)

Design Pressure = 70 psi Emitter cv = 0 05 20 25

Drip Uniformity Predictor Tool Design Pressure = 70 psi Emitter cv = 0.05 20 25

Pressure tolerance of PR = 1 6% 0.060 0.060

Emitter exponent = 0.730 0.730

Qmin/Qavg 0.956 =DUlq of PR's @20 PSI

Qmin/Qavg 0.956 =DUlq of PR's @25 PSI

Predictor Tool

Pressure variation due to elevation = 2 4 Ft. 0.087 0.069

Emitter exponent = 0.730 0.730

Qmin/Qavg 0.936 =DUlq for elevation change @ 20 PSI

Qmin/Qavg 0.949 =DUlq for elevation change @ 25 PSI

Pressure variation due to friction losses = 3 1.8 psi 0.09 0.072Emitter exponent = 0.730 0.730

Qmin/Qavg 0.933 =DUlq for friction loss @20 PSIQmin/Qavg 0 947 =DUlq for friction loss @25 PSIQmin/Qavg 0.947 DUlq for friction loss @25 PSI

DESIGN DU4 (Burt & Styles, 1999) 0.82 0.84


And Adaptive Management Policy (Corporate) And Adaptive Management Policy (Corporate) To Be Able to Know If You Are Getting ThereTo Be Able to Know If You Are Getting ThereTo Be Able to Know If You Are Getting ThereTo Be Able to Know If You Are Getting There

Environmental opportunities & threats

Plan, Develop Strategies

Organizational strengths & weaknesses

Strategies, Performance Criteria &

Goals

ImplementEvaluate

Monitor


Well? So What? Two Classes of Well? So What? Two Classes of Responses to ThatResponses to ThatResponses to ThatResponses to That

Th R ti n l Th R ti n l The Rational The Rational PropositionsPropositions

The Value PropositionsThe Value PropositionsThe Value PropositionsThe Value Propositions


QuestionsQuestionsQuestionsQuestions

Let no man presume to give advice to others that which he has not first given counsel to himself -Seneca
