cannot be predicted by studying any aspect in isolation; one had to - PowerPoint PPT Presentation

The world functions in wholes whose qualities cannot be predicted by studying any aspect in isolation; one had to see the whole first. We would know very little about water, for instance, by making an exhaustive study of hydrogen or oxygen, even though every molecule of water is composed of both. Likewise we could never manage a piece of land in isolation from the people who work it or the economy in which both the land and the people are enmeshed. Jan Smuts 1927

WWF Water Conservation Workshop Water Management on the Farm Bennie Diedericks 082 452 7263 bennie@resalt.co.za

Gen ener erally, ally, people don’t change their behaviour bec ecau ause e of wh what at the hey y kn know, , but, but, bec ecau ause e of wh what at the hey y ha have e ex experien perienced. ced.

The Colour of Water Blue water Green Water Grey Water

Effektiewe Waterverbruik • Winsgewendheid van jou plaas itv jou waterverbruik. R wins/m 3 water verbruik • Lengte van die groeiseisoen by verskillende kultivars en gewasse. • Waterbehoefte van onderskeie gewasse en kultivars met beplanning van nuwe aanplantings. • Prioritiseer die belangrikheid van jou boorde/blokke. Moennie water mors op nie winsgewende aanplantings nie. • Let op oesladings en verminder dit om by beskikbare hoeveelheid water aan te pas

Effektiewe Waterverbruik • Onderhou besproeiingstelsels. Herstel lekke en verstoppings. Maak besproeiingslyne skoon, kontroleer lewering van druppers en spuite • Kontroleer die akkuraatheid van skeduleringstoerusting en kalibreer dit reg • Bepaal die dieptes van wortelsones. Moennie dieper besproei as wat daar wortels is nie (hef beperkings op) • Bekamp verdamping met deklae – infiltrasie, temperatuur • Onhou meer water verdamp vanaf operdwalle as van gelyk grond • Beperk kompetisie vir water - bestuur van dekgewasse en onkruid • Wees konserwafief met bemesting. Moennie onnodige/geil groei stimuleer nie

Case Study DeWet Cellar • 850ha vineyards • Irrigation 6000m3/ha/yr • Saving of 5% = 300m3/ha/yr ( 55min irrigation instead of 1h ) • Total saving = 255 000m3/yr • 100litre/person/day = 36.5m3/person/yr • 255 000m3 = water for 7000 people for a year

Water Saving Through Wastewater Management Michiel Meets 082 553 5431 michiel@eco-owl.co.za

Reduce, Re-use, Recycle • Everyone knows the phrase • Use in all waste related activities If you don’t measure you cannot manage

Reduce • Water use in the cellar (and on the whole farm) • Less water to treat – lower costs • More water available for other functions • Example: ̶ Smaller nozzles or automatic shut off nozzle on hose pipes ̶ Sweep before flush principle ̶ Reduction of pressure ̶ Fix water leaks

Re Re-use • Is it possible to re-use some of the water • How and where? ̶ Rinsing

Recycle • Treat water to be able to irrigate ̶ Not just on kikuyu, rather pastures with livestock ̶ Vineyard and other crops ̶ Re-use in cellar/ tasting room/ offices • Treat water to be able to discharge into natural system ̶ Give water back to fill our dams

Summary ry • Reduce water use where possible at the source • Reuse chemicals until spent • No water is used only once (all water has a secondary purpose) • All water is treated to a point for sustainable re-use • Recycled water is used to reduce mains/supply requirements • Water Footprint = total litres of water / litre of wine produced

Thank You Michiel Meets 082 553 5431 michiel@eco-owl.co.za Bennie Diedericks 082 452 7263 bennie@resalt.co.za