Last week it was announced that the public funding of irrigation projects is going to be wound down. The move, which has elicited complaints of a “kick in the guts” from some farmers, and National, has also drawn widespread praise from pro-environment groups and Greenpeace.
I support this move entirely. I do not believe that it is in New Zealand’s interests to have public funding redirected towards irrigation.
New Zealand is at peak dairying. The industry is as big as it is going to get. The environmental cost will be like mining into an unstable slope – one wants the gold to show investors, but are completely oblivious to the danger of dairy herds. One animal may produce as much as 10x the output of a human being in excrement. Vast tracks of the Mackenzie Basin have been or are being converted to dairying. The cost to ratepayers to maintain water quality standards is increasing and tourists are becoming aware of the problems that dairy farming is causing.
Do not get me wrong. Irrigation has its place in New Zealand. However the extent to which it appears to influence economic policy is not proper and nor is it practical. Many rivers are completely allocated in terms of available surface and ground water. No matter how one reallocates the water it will not change the fact that it is 100% allocated and that reallocation is simply re slicing the pie.
Nor will it change the fact that the high intensity usage of water for dairy farming has had a substantial impact on the environment.The effects of this range from a widespread decline in water quality to potential salinisation of aquifers in coastal areas. In the aquatic environment of fresh water courses such as lakes, rivers and streams, water quality has degraded significantly and this is shown in the reduction of the number of water bodies where one can physically the water. Cyanobacteria forms more readily in water courses whose low flows in summer have been exacerbated by increased water use – it presents as a green-blue algae and is deadly to dogs if consumed.
I also have concerns about the welfare of animals. Not normally something I comment on, but wish to point out with relation to South Island high country. In a harsh sub alpine environment with intense winter cold with large open spaces, grazing stock would find it a challenge staying warm, whilst in summer there would be little shelter from the sun and temperatures which can reach 40°C. Keeping them adequately protected protected when shelter belts that double as wind breaks against northwesterlies have been removed to enable K-line irrigators to work, is a significant concern.
This move, whilst welcome is just the first step, as a comprehensive programme will be needed across New Zealand to undo the potential damage and keep the tourists coming.