INTERRELATIONSHIPS BETWEEN SITE FACTORS AND PRODUCTIVITY OF RADIATA PINE AT RIVERHEAD FOREST, NEW ZEALAND
Significant simple correlations were found between productivity of radiata pine growing on known P-deficient soils and available soil P, mycorrhizae, slope, aspect, pH, and drainage. However, partial and multiple correlations showed that available soil P, mycorrhizae, fine sand, clay and slope were...
| Veröffentlicht in: | Plant and Soil. - Springer Science + Business Media. - 35(1971), 2, Seite 371-380 |
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| 1. Verfasser: | |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
1971
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| Zugriff auf das übergeordnete Werk: | Plant and Soil |
| Schlagworte: | Business Biological sciences Mathematics Physical sciences |
| Zusammenfassung: | Significant simple correlations were found between productivity of radiata pine growing on known P-deficient soils and available soil P, mycorrhizae, slope, aspect, pH, and drainage. However, partial and multiple correlations showed that available soil P, mycorrhizae, fine sand, clay and slope were the only measured variables to make a significant independent contribution towards explaining variation in productivity. Aspect and pH were found to be related to productivity indirectly through their interrelationship with available soil P, and drainage indirectly through its interrelationship with mycorrhizae. The failure of clay and fine sand to show a significant simple correlation with productivity despite contributing independently to variation in productivity was attributed to their effects being more pronounced within specific levels of other variables than over their complete range. |
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| ISSN: | 15735036 |