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Annex II: GDP Estimates for Irrigation and Net Benefit Adjustments

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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