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FROM FARMS TO CATCHMENTS: Restoring the big picture

FROM FARMS TO CATCHMENTS: Restoring the big picture. AORERE. The river & surrounds. 706 km 2 Short steep river 72km 80% native forest, 16% agriculture, 3% scrub, 1% exotic forest 33 farms: 11,000 - 13,500 cows. Issues. $15M shellfish industry E.Coli contamination

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FROM FARMS TO CATCHMENTS: Restoring the big picture

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  1. FROM FARMS TO CATCHMENTS: Restoring the big picture

  2. AORERE

  3. The river & surrounds • 706 km2 • Short steep river 72km • 80% native forest, 16% agriculture, 3% scrub, 1% exotic forest • 33 farms: 11,000 - 13,500 cows

  4. Issues • $15M shellfish industry • E.Coli contamination • Annual harvest low as 30% • E.colidue to pasture runoff How to farm without preventing shellfish harvesting?

  5. The project • Aorere Catchment Group • Project management, facilitation, science coordination - NZLT • Partners - Fonterra, Dairy NZ, AgResearch, TDC

  6. Pathways • Modeling nutrient & pathogen impacts from land use • Results presented to marine farmers, dairy farmers and TDC • E.coli = key contaminant

  7. Plume model

  8. Actions • Farm interviews • “Handling the Wet” field-day • BMPs for E.coli management • Individual farm plans

  9. Successes • 14 farm plans completed • $1.4M of BMP improvements identified over next 5 years • Shellfish harvesting 30% to 71%

  10. TUNAWHAKAHEKE / E

  11. The lake & surrounds • Lake ~6ha, catchment 100ha • Shallow (0.4 - 0.7m), hypertrophic • Conservation & recreational values • Private (33%) & DOC Wildlife Management Reserve (66%)

  12. Issues • Peat shrinkage • Loss of open water habitat • Aquatic weeds & pest fish • Damage from livestock • Nutrient enrichment of lake

  13. The project • Project coordination - NZLT • Partners – Heritage Valley Farm & Whakatanga Farm,DOC, WRC (EW) • Contractors - Alison Dewes (Whole Farm Plans), JP Praat (Catchment Plan)

  14. Plans (1) • Whole Farm Plan • Nutrient Mgt Plan • Nutrient Budget

  15. WFP What’s in a plan? NMP Nutrient focus N, P, sediment & effluent use No Farm System changes/effects No Economics $2000-2500 System, whole farm effects & business profit N, P , sediment, effluent & receiving environment Farm System & profit changes $3500-$4000

  16. Plans (2) • Catchment Plan • Whole Farm Plan • Nutrient Mgt Plan • Nutrient Budget

  17. Catchment Plan • Matching landuse to underlying land capability • Understanding property resources • Identifying win-win approaches • Formalise long term business and land management goals

  18. Actions map Action plan map Action plan summaries

  19. What are the key ingredients for success?

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