It may not be necessary to sell off the family silver to plan and put into operation a new irrigation system
and green or to encompass fairways, approaches and walkways. Good design, using sprinkler densograms for example, can save water and take into account the need for the conservation of the peripheral landscape. It may not be necessary to sell off the family silver to plan and put into operation a new irrigation system. Provided the overall plan is discussed and approved by all concerned, the grand plan should incorporate all future requirements. A phased development can then be put into operation, for example, installing initially greens and tees but with adequate pipework, cabling infrastructure and pumping capacity to allow for future expansion to encompass aprons, fairways and walkways.
Balancing the infiltration rate with the sprinkler precipitation/application rate and the
incorporation of a correctly positioned weather station and soil moisture sensors, along with traditional ways of observing soil moisture deficit, can be demonstrated to be effective in managing water, some estimates suggesting as much as a 20% saving. However, we should also take into
Water collection and the provision of storage
facilities will be essential in future planning
36
consideration, when planning and designing any system, the complex issues of water resourcing. On the Continent, some countries are already restricting the annual quantity of water which it
is permissible to use. In Denmark, for instance, some courses are restricted to as little as 5,000m3 year.
per
Borehole usage will be, and in many areas already is, controlled under the local CAMS, and restrictions may apply in the future. Water collection and the provision of water storage facilities will be essential in future planning and, depending upon the quantities of water required, continued use of potable water from the public water
system will undoubtedly, at the very least, become prohibitively expensive, if not denied. Climate change is another complex issue. Speculation varies widely. However, over the past few years, few will disagree that the pattern of our climate has tended to be more extreme, in particular heavier, but less frequent rainfall. We must look to the long term to
secure our water resourcing and install some form of water storage facility. For a relatively simple green and tees system in the UK, a storage capacity of some 10,000-15,000m3 should be adequate but, if expansion is planned for the future, then 25,000-40,000m3
may be required. We also need to explore the
sourcing of that water. Water farming and collection of water from the golf course, via drainage and hard standing areas, such as car parks, should be considered. Recycling non-soiled clubhouse water through reed beds and ultra violet filters is another option. Winter abstraction from boreholes, rivers and streams is yet another possibility. This really is long term planning and to discuss it should not be deferred. Remember that degree in foresight I spoke of earlier.
On a global scale, away from the needs of the golf course, water resourcing, or the lack of it, is a very real issue which has already led to inter-border issues and violence; it yet may be a far bigger problem than oil.
In conclusion. Yes, there are some
relatively simple measures which can be implemented to conserve water and improve our irrigation procedures, but there are also some difficult choices ahead. STRI Irrigation Services are available to help in many of the areas covered in this article, from irrigation system audits and feasibility studies for a new irrigation system, through to detailed irrigation design and the production of scaled plans and tender documentation (specifications and bills of quantities). For further information please contact Helen Waite on 01274 518918, email
helen.waite@stri.co.uk or visit
www.stri.co.uk
Images © John Deere Ltd
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