STRI (Sports Turf Research Institute) Bulletin Jan 2014 | страница 8

TURF TALK Firmness (Clegg) map showing classified values Soil compaction map showing stretched values This is most useful for understanding the effect of play or traffic flow. This is extremely useful in managing the use of training pitches which may be prone to overuse of favoured goalmouths or sustained ‘fast feet’ training along nearside touchlines close to facilities. Soil moisture summary graph Other maps of interest present Upper and Lower Quartile results detailing information such as the 25% highest compaction or highest (Upper quartile) moisture zones per individual area (fairway or pitch) or across the whole site. Similarly, Lower Quartile results identify 25% areas of lowest compaction or driest areas. Turf vigour, or stress, can also be viewed this way. A series of simple summary graphs provide easy reference charting results across the sites assessed. On-site Assessment Upper quartile map highlighting soil moisture levels Great, we now have a base plan or working document which accurately measures performance over a wide area and range of playing surfaces. So, what now? It is essential that the client has a thorough understanding of the situations presented. Key Indicator Zones are selected based on the mapped results in conjunction with client feedback. There may be an obvious area of concern which causes problems time and time again or hidden areas which become troublesome at 8 Bulletin January 2014 Issue 264