Summary of comparison of site factors and tree performance indicators by linear regression (VAF -variation accounted for).
| Relationship between tree performance, and site factors and foliar nutrient concentrations | ||
| +1991 shoot extension | ||
| -1990 moisture stress (VAF 57%) | ||
| + 1991 N in gravel and paved area (VAF 59%) | ||
| -1991 N in turf area (VAF 59%) | ||
| -1991 K (VAF 55%) | ||
| -1991 Mg (VAF 55%) | ||
| greener 1990 leaf colour | ||
| -1990 moisture stress (VAF 84%) | ||
| + 1990 N (VAF 89%) | ||
| + 1990 K (VAF 84%) | ||
| greener 1991 leaf colour | ||
| -1990 moisture stress (VAF 75%) | ||
| + spring 1991 aeration in planting pit (VAF 77%) | ||
| + spring 1991 aeration in top 30cm outside pit (VAF 75%) | ||
| + 1991 N (VAF 76%) | ||
| + 1991 K in gravel and turf area (VAF 78%) | ||
| -1991 K in paved area (VAF 78%) | ||
| + 1991 leaf area | ||
| -1990 moisture stress (VAF 49%) | ||
| + spring 1991 aeration in planting pit (VAF 49%) | ||
| + 1991 N (VAF 49%) | ||
| -1991 K (VAF 49%) | ||
| -1991 Mg (VAF 52%) | ||
| + 1991 crown density | ||
| + 1990 moisture stress (VAF 26%) | ||
| -1991 K (VAF 23%) | ||
| Relationships between foliar nutrient concentrations and site factors | ||
| + 1990 N: | + 1990 moisture stress (VAF 76%) | |
| + 1991 N: | + 1990 moisture stress (VAF 67%) | |
| + spring 1991 aeration in planting pit (VAF 66%) | ||
| + 1990 K: | + 1990 moisture stress (VAF 69%) | |
| + 1991 K: | + 1990 moisture stress (VAF 69%) | |
| -spring 1991 aeration in top 30cm outside pit (VAF 68%) | ||