Tagged: water use

Map: Projected effects of climate change on New Zealand freshwaters - Waiology

Waiology Nov 27, 2012

By Daniel Collins Maps are helpful tools in communicating and understanding the potential implications of climate change. We have national maps of projected changes in temperature that show faster warming in the north, and in precipitation that show more rain in the south and west and less in the north and east. We also have national maps of … Read More

Waiology moving from water cycle to freshwater sciences - Waiology

Waiology Nov 26, 2012

By Daniel Collins After over a year serving New Zealand as a source of information and discussion on hydrology and the water cycle, I am pleased to announce that Waiology is expanding its scope to freshwater sciences and allied disciplines more generally. This includes all things hydrological, as before, but also aquatic ecology and chemistry, fluvial geomorphology, hydraulic engineering, and … Read More

How much water does it take to produce one litre of milk? - Waiology

Waiology May 24, 2012

The single biggest consumer of water in New Zealand is the dairy industry. As of 2010, farmers are permitted to take about 4707 million m3 of water per year from New Zealand’s rivers and aquifers to irrigate pasture, most of which is for dairying. This is 44% of all consumptive uses (excluding the Manapouri hydropower scheme), and 68% of … Read More

Canterbury water use, 2010/11 - Waiology

Waiology Apr 10, 2012

Guest post by James Tricker, Principle Extension Services Officer, Environment Canterbury There are increasing expectations, both within the Canterbury community and also within a national context, that the relation between water allocation and water use is more strongly understood. The Environment Canterbury Water Use Report presents the information gathered on consented water use in Canterbury between 1 July 2010 and … Read More

Water footprints – What do they mean for us in New Zealand? - Waiology

Waiology Dec 12, 2011

Guest post by Dr Sarah McLaren, Associate Professor at Massey University and Director of the NZLCM Centre. This article originally appeared in the Summer 2011 (December) issue of IrrigationNZ News. Have you heard that the water footprint of 1 kg beef is 15,500 litres, and of 1 kg cheese is 5,000 litres? Did you know that Unilever has … Read More