Optical and Thermal Remote Sensing of Turfgrass Quality, Water Stress, and Water Use under Different Soil and Irrigation Treatments
Open Access
- 14 May 2013
- journal article
- research article
- Published by MDPI AG in Remote Sensing
- Vol. 5 (5), 2327-2347
- https://doi.org/10.3390/rs5052327
Abstract
Optical and thermal remote sensing data were acquired at ground level over several turfgrass species under different soil and irrigation treatments in northern Colorado, USA. Three vegetation indices (VIs), estimated based on surface spectral reflectance, were sensitive to the effect of reduced water application on turfgrass quality. The temperature-based Grass Water Stress Index (GWSI) was also estimated by developing non-transpiring and non-water-stressed baselines. The VIs and the GWSI were all consistent in (i) having a non-linear relationship with the water application depth; and, (ii) revealing that the sensitivity of studied species to water availability increased in order from warm season mix to Poa pratensis L. and then Festuca spp.. Implemented soil preparation treatments had no significant effect on turfgrass quality and water stress. The differences between GWSI-based estimates of water use and the results of a complex surface energy balance model (METRIC) were not statistically significant, suggesting that the empirical GWSI method could provide similar results if the baselines are accurately developed under the local conditions of the study area.This publication has 31 references indexed in Scilit:
- Estimating Net Primary Production of Turfgrass in an Urban-Suburban Landscape with QuickBird ImageryRemote Sensing, 2012
- Evaluation of Remote Sensing to Measure Plant Stress in Creeping Bentgrass (Agrostis stolonifera L.) FairwaysCrop Science, 2009
- Efficient Water Use in Residential Urban LandscapesHortScience, 2008
- Using spectral reflectance to document water stress in bermudagrass grown on water repellent sandy soilsHydrological Processes, 2007
- Evaluating temporal variability in the spectral reflectance response of annual ryegrass to changes in nitrogen applications and leaching fractionsInternational Journal of Remote Sensing, 2006
- The effects of different irrigation levels applied in golf courses on some quality characteristics of turfgrassIrrigation Science, 2003
- Water Conservation in Urban LandscapesHortScience, 2000
- An evaluation of multi-spectral responses on selected turfgrass speciesInternational Journal of Remote Sensing, 2000
- Response of Buffalograss and Bermudagrass to Reduced Irrigation Practices Under Semiarid ConditionsJournal of Turfgrass Management, 1997
- Assessing Urban Water Use and the Role of Water Conservation Measures under Climate UncertaintyClimatic Change, 1997