| Table
4. Results of the
chemical analysis of foredune soil samples collected at a depth of 20
cm. All cation data are in kg/ha.
Each entry represents a mean of 66 samples (from van der Valk,
1975). |
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|
Location |
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Front |
Top | Back | ||||
| Mean | SD | Mean | SD | Mean | SD | |
| Potassium | 10.1 | 10.3 | 9.3 | 8.2 | 6.9 | 6.9 |
| Sodium | 115
|
86 | 69 | 40 | 73 | 46 |
| Calcium | 8,187 |
6,255 | 5,145 | 4,565 | 6,435 | 5,387 |
| Magnesium | 64
|
25 | 58 | 18 | 46 | 15 |
| Manganese | 5.9
|
1.7 | 6.5 | 2.0 | 5.8 | 1.8 |
| Zinc | 1.1 |
0.6 | 1.1 | 0.7 | 0.9 | 0.5 |
| Phosphorus | 6.9 | 0.4 | 6.7 | 0.3 | 6.7 | 0.3 |