Value Landscape Engineering
Value Landscape Engineering (VLE)
Evaluating landscapes for environmental & financial sustainability
You may know how much your landscape will cost to install, but do you know what the total cost will be to operate and maintain the landscape for 25 years?
Have you ever wondered about the amount and cost ofo fertilizer and pesticides needed to maintain your landscape?
Do you know what the energy costs or savings of your landscape will be?
Do you know how much water you'll be using every year? Or over the lifetime of your landscape?
Download the Landscape Life Cycles spreadsheet to analyze & compare landscape costs over time.
Note: This needs to be run on Excel within Windows. It can be done on a Mac, but only if the computer is able to run Windows. Its because of macros in the Excel spreadsheet.
Value Landscape Engineering: Identifying Costs, Water Use, Labor, and Impacts to Support Landscape Choice.
Rosenberg, David E., Kelly Kopp, Heidi A. Kratsch, Larry Rupp, Paul Johnson, and Roger Kjelgren, 2011. Journal of the American Water Resources Association (JAWRA) 47(3):635-649. DOI: 10.1111/j.1752-1688.2011.00530.x
Abstract: We present a spreadsheet model that identifies the costs, water, labor, fertilizer,
pesticides, fuel, energy, carbon emissions, and particulates required of and generated
by a user-specified residential or commercial landscape over its economic life. This
life includes site preparation, materials purchase, installation, annual maintenance
and replacing landscape features that wear out or die. Users provide a variety of
site-descriptive information and the model queries an extensive database of landscape
data to calculate costs, required inputs, and impacts. We verified model results against
observations of water, labor, fertilizer, and fuel use over eight years at three landscapes
in the Salt Lake City, Utah metropolitan region. We use the model to show tradeoffs
in costs and required inputs for a predominately cool-season turfgrass landscape typical
for Salt Lake City and other high desert, intermountain western United States cities
and potential modifications to that typical landscape. Results highlight strategies
water conservation programs can use to encourage property owners to install and adopt
water-conserving landscape features and practices. Residential and commercial landscapers,
landscape architects, contractors, and property owners can also model current and
proposed landscapes and use results to identify a low-cost, low-input landscape that
achieves their client’s or their own goals and values.
Available from: http://digitalcommons.usu.edu/cwel_pubs/73/