The Detail Slash, storms and the fight over responsibility
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Jan 26, 2026 Dr Mark Bloomberg, adjunct senior fellow at the School of Forestry, University of Canterbury, and forestry expert on erosion and plantation practices. He discusses the history of planting to stop erosion, why radiata pine dominated, how privatisation changed incentives, risks from large clear-fells and slash, legal responsibility under the RMA, and proposed fixes like replanting and smaller coupes.
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Storms Left Beaches Littered With Logs
- Cyclones Hale and Gabriel left beaches carpeted in logs and caused tragic loss of life, as reported after the storms.
- Local residents described exhaustion and anger at recurring cleanup battles in Tairāwhiti.
Historic Land Use Created Today's Risk
- Tairāwhiti's slash crisis stems from a 150-year land-use history that replaced native forest with pasture and then commercial pine.
- Large-scale, simultaneous maturation and clear-felling removed protective cover and multiplied erosion risk about tenfold.
Protection Plantings Became Commercial Assets
- State-driven plantings of radiata pine stabilised erodible land but were later sold to commercial owners focused on harvest income.
- The shift from public land‑protection intent to commercial objectives increased vulnerability when forests matured and were clear‑felled.