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Appendix 2: Variables to be removed from statistical datasets

The variables that will be removed during this agricultural land database matching and data integration are listed below (by process stage).

Stage 1:

All variables sourced from the Ministry for Primary Industries FarmsOnLine database will be removed by the end of stage 1, as will the following variables:

  • Variables sourced from Statistics NZ’s Agricultural production survey:
    • Legal enterprise name
    • Trading or station name
    • Enterprise postal address
    • Farm physical address
  • Variables sourced from the Land Information New Zealand, NZ Primary Parcels and Land Owners datasets
    • Title owner

The objective is to pinpoint each farm in the Agricultural production survey by mapping it onto a LINZ land parcel or a LINZ address point or a LINZ road centre line or an APS assigned meshblock. This new dataset will be kept by Statistics NZ.

Stage 2:

The following variables from Statistics NZ’s Agricultural production survey will be removed by the end of stage 2:

  • APS Enterprise geounit ID
  • APS Enterprise ID

The objective is to have farm inputs of fertiliser applied and outputs of nitrogen, phosphorus and faecal dry matter produced, mapped to farm boundaries with no identifiers to individual farms.

Stage 3:

By the end of stage 3:

  • Farm type of animal is removed so that a farm cannot be identified as a beef, sheep, dairy, poultry, deer farm etc.
  • Any maps produced will show aggregated and averaged values.
  • All outputs are aggregated to national and regional level and approved by Statistics NZ for publication (confidentiality and quality assurance standards apply).
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