Funding boost for sediment control study

Wednesday 10 Nov 2021

$1.3m boost for study of erosion, sediment control measures in forestry sector - A seven-year forestry study aims to determine the most effective measures for reducing erosion and sediment in rivers from harvesting.

The project is now in its second year at forestry company OneFortyOne's Donald Creek Forest, near Tadmor in the Tasman district. It has just received $1.37 million from Ministry for Primary Industries through its Sustainable Food and Fibre Futures fund.

MPI's director of investment programmes Steve Penno said the only way to find out what erosion and sediment control measures worked best was through robust, real-world studies.

"This project is exploring the effectiveness of current best practice in sediment control as well as some new innovations. Later in the project, the researchers will construct a large sediment retention pond to see how that measures up compared to traditional methods."

"As well as the benefits of erosion and sediment control, the programme will also compare the costs of different practices." Penno said the data collected from the project would inform how the forestry industry meets new government freshwater management standards for suspended and deposited sediment. It would also provide scientific backing for the most effective forestry practices that had the best outcomes for the environment.

OneFortyOne's executive general manager New Zealand Brent Guild said as a long-term business, it made sense to invest in long-term studies like this one, adding, "The data will help us understand the impacts of our business. It will help us learn what works well and where we might do better."

It was working alongside Cawthron Institute, Envirolink, Manaaki Whenua - Landcare Research as well as the Ministry for Primary Industries. Two similar plantation catchments had been set up, including a control catchment that was exposed to the same weather, but would not be harvested.

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Source: RNZ



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