nzherald.co.nz

Sam Judd: Death to dirty dairy?

By Sam Judd
5:30 AM Thursday Jun 21, 2012
Photo / Thinkstock

Photo / Thinkstock

Almost any environment writer would have some kind of gripe about Fonterra - the biggest dairy company in the world and a seriously powerful player when it comes to New Zealand policy.

I have copped plenty of flack for bringing up topics that blame intensive land use for environmental degradation. While I maintain the position that our rapid conversion to dairy has had significant impacts, today I openly applaud Fonterra for what I believe is the biggest industry-led environmental decision that our country has ever seen.

In December last year - in a move that essentially recognised the ineffectiveness of the voluntary nature of the Dairy and Clean Streams Accord - Fonterra gave its farmers 18 months to fence off their waterways as a condition of supply.

I guess when you market your exports as coming from "clean and green" New Zealand and a dirty few are ruining the good work of others, action is required.

FROM 'DAISY' TO DOLLARS

It is no surprise that dirty dairying has come to be a big issue. There has been so much criticism of its environmental effects that Fonterra had to do something.

In the last twenty years our dairy cow numbers have almost doubled, to a staggering 6.2 million units and in 2009, the Manawatu was awarded the embarrassing title of the most polluted of 300 waterways in North America, Europe, Australia and New Zealand that were studied by the Cawthron Institute.

A retired farmer recently lamented to me that industry pressure to maximise production has lead to cows becoming "units" rather than individually known animals. Herd wellbeing and the environment is now often secondary to profitability.

But now that the public spotlight is shining on dirty dairy, pressure has mounted for Fonterra to clean up their act.

This industry-led decision represents a major paradigm shift on behalf of our dairy giant.

To be fair, there were already a great deal of farmers out there doing their best to manage land responsibly and Fonterra has now taken the first step to bring those who lagged behind into line.

CLEAN STREAMS ARE NOT A DREAM

Fencing off waterways from stock prevents direct erosion of soil, reducing the flow of silt, which will make a significant difference to the health of our waterways. It will not, however, stop the flow of nutrients (fertiliser and effluent) that pour off dairying land - a further effect of short-term profit being prioritised over the environment. Going a step further and planting out the riparian strip can improve this.

Farmers like Fred Lichtwark of Whaingaroa Harbour Care are a success story for sceptical farmers out there. Lichtwark and others have fully restored Raglan's waterways, which has increased his profitability and he is now able to catch whitebait on his own farm. This award winning Whaingaroa Harbour Care group now offer their services to other farmers wanting to improve their productivity and environment.

While many farmers will baulk at any added expense beyond what they are forced to do, there are ways to reduce the cost. Riparian planting gives instant satisfaction and volunteers - such as those from Lantern Insurance who have been coming with us to the Waihou River. They love getting their hands dirty doing work that they know is helping the environment.

Never before has such an example of the economic benefits of environmental best practice been of such pertinence in New Zealand. If farmers put the fences up, plant out the streams and manage their land carefully (minimising nitrogen inputs and maximising organic matter), then people who want to swim in a clean river are not the only ones who will be better off: farmers will get richer and possibly appreciate a whitebait fritter after a hard days graft.

If any readers, organisations or business groups out there are interested in participating in a riparian planting activity, please drop me an email: sam@sustainablecoastlines.org - you will be surprised at how satisfying it can be.

By Sam Judd
RR (New Zealand) | 10:41AM Thursday, 21 Jun 2012
Sam is very simplistic in his explanation. Fertiliser does not run off land, it grows grass which is then eaten and then waste nutrients returned to the ground. It is these that enter the waterway. Most farm waterways are small drains, his soil erosion theory only applies to rivers.

The downside of fencing rivers is that the vegetative growth then clogs the river slowing its movement and increasing flooding. The big downside is that it will achieve very little for its cost. There will be no reduction in nutrients entering the wtaterway. Mind you that is not a bad thing, nothing lives in pure water.
TheOwl (Auckland Central) | 10:41AM Thursday, 21 Jun 2012
A lot of farmers sit on said local councils so dirty streams will take a while to be cleaned up, Riparian planting is also good for natures animal life so why cant conversation NZ help.
William (New Zealand) | 10:41AM Thursday, 21 Jun 2012
"There has been so much criticism of its environmental effects that Fonterra had to do something."

This may be correct, but is it mainly lip service? A few pictures in newspapers about some localised efforts to fence off some streams and do some (re)planting of areas useless for dairying doesn't clean up NZ waterways.

Who is going to monitor this? The government was going to implement something like that but doesn't do anything either. Are local and regional councils going to tighten up the RMA requirements and tell farmers (and every other polluter) that in a year's time their business must have an acceptable plan in place to meet legal standards for discharge in waterways or face closure?

Legal requirements are that discharge of environmentally hazardous substances must be treated or diluted to a point that they are not considered harmful any more, before they are discharged.

Accepting dilution after the discharge means pollution and is illegal. It seems that many councils accept the latter (and don't monitor). This also applies to dairy run-off as well as nitrogen 'leakage' into waterways.
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