Story: Soil erosion and conservation All images & media From page 1 – Soil features and impact of erosion The good earth A soil profile Hill-country slip From page 2 – Natural and human causes of erosion High alpine slip Burning the bush Creating pasture Sowing the seeds Rabbits From page 3 – Types of erosion Rill erosion Gully erosion Streambank erosion From page 4 – Surveys and research Scree Aerial topdressing High-altitude erosion control From page 5 – Legislation and catchment boards: 1940s–1950s Erosion control on hill country South Canterbury Catchment Board Water run-off weirs Land capability survey Craigieburn Range From page 6 – Legislation and subsidies: 1960s–1990s Effects of tree planting Clean and dirty water From page 7 – Biological control of erosion Agroforestry Pair planting of poplars Shelter belts From page 8 – Mechanical control of erosion Run-off flumes Graded banks Direct drilling
