By the 1940s large areas of New Zealand farmland were subject to erosion, and serious questions were being asked. In this film clip Laurie Newnham (chairman of the Soil Conservation and Rivers Control Council) stresses the importance of allowing native bush to regenerate, or of planting exotic species on steep hill country. The same message is still given today.
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Archives New Zealand - Te Rua Mahara o te Kāwanatanga
Reference: Chairman's speech on soil conservation. National Film Unit, 1950
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