Navigation Links
Landscape coefficients prove useful for urban water conservation efforts

COLLEGE STATION, TXAlthough water consumption and conservation are widely recognized as significant environmental concerns in the United States, most Americans are still unaware of the major impact of landscape irrigation on their regional water supplies. One startling example: a 2004 study of homeowners in College Station, Texas, estimated that more than 24 to 34 million gallons of excess water were used annually for landscape irrigation alone.

According to the authors of a study published in HortScience, end-users lack understanding of best management practices for landscape water management, thus contributing to excess water use. To gain insight into innovative water-saving strategies, the researchers tested the use of landscape coefficients as a tool in irrigation decision-making and resulting water savings in urban landscapes.

"Significant water use savings may be achieved if landscape irrigation is based on reference evapotranspirationthe amount of water lost through evaporation from the soil and plant surface plus that lost through plant transpiration", explained the study's corresponding author Tim Pannkuk. The research team measured landscape crop coefficients (KL) for landscapes comprised of different vegetation types and irrigation water quality differences affecting KL. The KL values were determined for landscape vegetation sites in College Station and San Antonio, Texas.

"In our study, St. Augustinegrass KL increased seasonally in San Antonio. The untrimmed native grasses increased in height and girth from spring until the first frost in November, whereas the mowed St. Augustinegrass had a relatively constant plant height and density during this time period", said Pannkuk. "The data showed that the mean KL for native grass was not statistically different from the KL of St. Augustinegrass with or without a tree. This implies that a seasonal KL could be used in irrigation recommendations for amenity landscapes with mixed species". Pannkuk noted that "it appears that the native grasses are opportunistic plants in regard to water use."

Municipalities and water planning agencies rely on several proven methods to promote water conservation. The new research shows that the use of a landscape coefficient for irrigating mixed-species landscapes has potential to enhance regional planning and conservation efforts. The study concluded that seasonal landscape water demand could be closely predicted with a landscape coefficient, weather station data, and number of irrigated acres in the region.


Contact: Michael W. Neff
American Society for Horticultural Science

Related biology news :

1. Integrating agriculture and forestry in the landscape is key to REDD
2. NSF funds study of landscape restoration effects on Pennsylvania stream
3. Study: Tiger numbers could triple if large-scale landscapes are protected
4. Landscape tree disease from 12 wood decay fungi studied
5. Ticking of cellular clock promotes seismic changes in the chromatin landscape associated with aging
6. Santa Fe homeowners weigh in on landscape preferences
7. New hydrangea cultivars for landscape gardens
8. Planting depth affects popular landscape tree
9. The effect of landscape position on biomass crop yield
10. Conservation from space: Landscape diversity helps to conserve insects
11. After mastodons and mammoths, a transformed landscape
Post Your Comments:
(Date:10/27/2015)... October 27, 2015 Munich, ... Gaze Mapping technology (ASGM) automatically maps data from mobile ... Glasses , so that they can be quantitatively ... Munich, Germany , October 28-29, 2015. ... data from mobile eye tracking videos created with ...
(Date:10/26/2015)... LAS VEGAS , Oct. 26, 2015 ... an innovator in modern authentication and a founding member ... launch of its latest version of the Nok Nok™ ... to use standards-based authentication that supports existing and emerging ... Suite is ideal for organizations deploying customer-facing applications that ...
(Date:10/23/2015)... California , October 23, 2015 ... (SMI) announce a mobile plug and play integration of ... real-world tasks SensoMotoric Instruments (SMI) present ... wearable solutions for eye tracking and physiological data registration. ... SMI Eye Tracking Glasses 2w and physiological ...
Breaking Biology News(10 mins):
(Date:12/1/2015)... ... December 01, 2015 , ... Matthew “Tex” VerMilyea, PhD, HCLD, has joined Texas ... oversee all IVF lab procedures as well as continue his research efforts into the ... miles to Auckland, New Zealand to bring home a High Complexity Clinical Laboratory Director ...
(Date:11/30/2015)... ... ... announced the opening of a new core patient care hub with the opening of ... are part of GSCG’s expansion efforts in Latin America. , Both the Arica and ... from around the world. , The clinics will be headed by Victor Perez, M.D. and ...
(Date:11/30/2015)... HOLLISTON, Mass. , Nov. 30, 2015 /PRNewswire/ ... HART ), a biotechnology company developing bioengineered ... has received written notification from The NASDAQ Stock ... minimum bid price requirements. The letter noted that ... of HART,s common stock having exceeded $1.00 per ...
(Date:11/30/2015)... Human Longevity, Inc. (HLI), the genomics-based, technology-driven ... Genomics, Inc., a leading genome informatics company offering highly ... The San Diego -based company has ... and Co-founder, Ashley Van Zeeland , Ph.D., who is ... of the deal were not disclosed. ...
Breaking Biology Technology: