Table A1: Net contribution of irrigation to farm gate GDP
| Region | Area irrigated ha | Total value of irrigation GDP million | Value of irrigation GDP/ha/annum |
|---|---|---|---|
| Northland | 7,000 | $29 | $4,110 |
| Auckland | 7,900 | $54 | $6,880 |
| Waikato | 14,500 | $56 | $3,840 |
| Bay of Plenty | 11,400 | $39 | $3,440 |
| Gisborne | 5,600 | $25 | $4,530 |
| Hawke’s Bay | 18,100 | $99 | $5,480 |
| Taranaki | 2,900 | $6 | $2,070 |
| Manawatu−Wanganui | 8,000 | $21 | $2,620 |
| Wellington | 9,600 | $21 | $2,270 |
| Tasman | 10,000 | $47 | $4,660 |
| Marlborough | 20,200 | $86 | $4,250 |
| Canterbury | 287,200 | $335 | $1,170 |
| Otago | 68,900 | $87 | $1,270 |
| Southland | 4,100 | $13 | $3,170 |
| Totals: | 475,700 | $920 | $1,930 |
Table A2: Labour cost adjustments to GDP estimates – $/ha/annum
| Region | Dairy | Sheep and beef | Deer | Arable |
|---|---|---|---|---|
| Northland | $4 | $18 | $51 | $111 |
| Auckland | $4 | $18 | $51 | $111 |
| Waikato | $277 | $33 | $51 | $111 |
| Bay of Plenty | $277 | $33 | $51 | $111 |
| Gisborne | $141 | $114 | $51 | $111 |
| Hawke's Bay | $141 | $114 | $51 | $111 |
| Manawatu−Wanganui | $141 | $114 | $51 | $111 |
| Taranaki | $141 | $114 | $51 | $111 |
| Wellington | $141 | $114 | $51 | $111 |
| Tasman | $590 | $47 | $41 | $111 |
| Marlborough | $590 | $47 | $41 | $111 |
| Canterbury | $590 | $47 | $41 | $111 |
| Otago | $538 | $31 | $41 | $111 |
| Southland | $538 | $31 | $41 | $111 |
Source: Various MAF Farm Monitoring Reports, 2004
Table A3: Transition capital costs associated with land-use change to irrigation
| Land use | Capital costs $/ha |
|---|---|
| Dairy | $12,500 |
| Sheep and beef | $1,000 |
| Deer | $3,500 |
| Arable | $500 |
| Horticulture | $30,000 |
| Viticulture | $20,000 |
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Annex II: GDP Estimates for Irrigation and Net Benefit Adjustments
May 2008
© Ministry for the Environment