4 October 2013
Science validates Taranaki landfarming as ‘fit for purpose’
Having described the Green Party’s claims about Taranaki landfarming as irresponsible scaremongering, Federated Farmers
is buoyed that an independent scientific investigation has confirmed these farms are not only safe, but may be better for the environment.
“Federated Farmers congratulates Taranaki Regional Council for commissioning Dr Doug Edmeades of AgKnowledge to test
landfarming,” says Harvey Leach, Federated Farmers Taranaki provincial president.
“If you happen to be a farmer with less than even pasture or soil quality, then the cliché, ‘One man’s trash is
another’s treasure,’ very much applies. Landfarms recycle the mud, rocks and clay that comes from mining so is smart
recycling.
“The blending of this material into the sand makes it worthwhile to add fertiliser and to put in place irrigation
infrastructure. Simply put there is soil.
“These landfarms are also monitored and tested by Taranaki Regional Council and Dr Edmeades study vindicates both the
concept and the council’s monitoring approach.
“That’s why the negative claims made about landfarms in Taranaki were so thin they could model in Paris.
“Dr Edmeades is a scientist who has completed an ANZAC Fellowship and was National Science Program Leader (Soils and
Fertiliser) for AgResearch. In 1997, he established his own science consulting business, which became AgKnowledge.
“Dr Edmeades is an expert in his field. His report concluded that landfarming made sandy and highly erosion prone
coastal farmland, ten times better for dairy farming. That is both an economic and environmental win since these farms
previously had poor soils.
“Because of the value and productive uplift from landfarming, it has allowed better management practices to be adopted.
“His report found that the concentrations of heavy metals in the landfarms were at the low end of the range, when
compared to soils from various regions in farmed and non-farmed areas. That is a positive.
“While hydrocarbons were found on the most recently completed landfarm, Dr Edmeades said these levels would decline as
soil microbes broke them down.
“Being a farmer, I know that earthworms are a strong indicator of soil health and Dr Edmeades found them in large
numbers. That’s a key thing for me because he described earthworms as a soil scientist’s ‘canary in the mine'.
“At least we now have a robust independent scientific report saying that landfarming is not only safe but can be
environmentally positive. That’s why we need to base discussion on hard facts and evidence and not for short-term
political gain," Mr Leach concluded.
To read the report, please click here.
ENDS