Purukohukohu landuse basin - a report on the effects of a landuse change, from pasture to pine forest, on water yield / A. Dons
By: Dons, A.
Contributor(s): Water Quality Centre (Hamilton, N.Z.)
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Series: Internal report / Water Quality Centre, Hamilton: no. 80/15Publisher: Hamilton, N.Z. : Hamilton Science Centre, 1980Description: 34 leaves : illustrations ; 30 cm.Subject(s): LAND USE | FORESTS | BASINS | RAINFALL | NEW ZEALAND | WATER QUALITY
In:
Internal report / Water Quality Centre, HamiltonSummary: The Purukohukohu landuse basin, midway between Rotorua and Taupo, was chosen as the site for hydrological investigations of afforestation of pasture on Taupo pumice soils. After a calibration period from January 1969 to May 1973, the Puruki catchment was planted in pine seedlings while the Purutaka pasture catchment was chosen as the control. After five years of tree growth there has been a 44% reduction in the annual yield of the afforested catchment which is considered to represent about 11% of the 1978 precipitation. Using seasonal data it was found that winter showed the greatest absolute reduction but that summer showed the greatest proportional reduction in yield. The 1978/79 summer showed a reduction of 75% while the 1978 winter showed a reduction of about 58%.
| Item type | Current library | Call number | Copy number | Status | Date due | Barcode | |
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JOURNAL
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WELLINGTON STACK | STACK NO. 80/15 | 1 | Available | J017725 |
The Purukohukohu landuse basin, midway between Rotorua and Taupo, was chosen as the site for hydrological investigations of afforestation of pasture on Taupo pumice soils. After a calibration period from January 1969 to May 1973, the Puruki catchment was planted in pine seedlings while the Purutaka pasture catchment was chosen as the control. After five years of tree growth there has been a 44% reduction in the annual yield of the afforested catchment which is considered to represent about 11% of the 1978 precipitation. Using seasonal data it was found that winter showed the greatest absolute reduction but that summer showed the greatest proportional reduction in yield. The 1978/79 summer showed a reduction of 75% while the 1978 winter showed a reduction of about 58%.
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