Table 9.6: Soil properties under the 500 Soils Project, arranged by land-use categories
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| Soil property | Arable cropping(N=44) | Mixed cropping(N=17) | Drystock pasture(N=142) | Dairy pasture(N=127) | Tussock grasslands(N=20) | Exotic forestry(N=67) | Native forests(N=58) |
|---|---|---|---|---|---|---|---|
Mineralisable nitrogen (µg/m3) |
56 |
70 |
128 |
160 |
88 |
63 |
100 |
Total carbon (mg/cm3) |
40.7 |
37.6 |
50.8 |
66.9 |
38.3 |
46.4 |
56.5 |
Total nitrogen (mg/cm3) |
2.32 |
3.13 |
4.29 |
5.92 |
2.62 |
2.99 |
3.48 |
pH in water |
6.17 |
6.17 |
5.75 |
5.74 |
5.61 |
5.36 |
5.36 |
Olsen phosphate (µg/m3) |
49 |
44 |
19 |
44 |
16 |
10 |
11 |
Macroporosity (%v/v) |
14.7 |
9.3 |
13.3 |
10.1 |
15.6 |
25.6 |
9.3 |
Notes:
(1) The number of soil sites is indicated by ‘N’.
(2) µg/m3 = micrograms per cubic centimetre.
(3) mg/cm3 = milligrams per cubic centimetre.
Source: Sparling and Schipper, 2004.
