Aluminum-Foliar Al levels were significantly increased by
 both fertilization and water table control. This was a reflection
 on increased rooting depth on deeper water tables permitting
 roots to grow in the spodic horizon which contains considerable
 Al (5). A large increase in Al concentrations in fine roots was
 noted without a corresponding large increase in other tree com-
 ponents, indicating a lack of transport of Al from those roots
 (Table 12). Aluminum levels in several tree components were
 significantly decreased by water table control as a result of a
 large biomass and a dilution effect (13).
 Fertilization significantly increased foliage levels of P, Ca,
 and Al while decreasing foliage concentrations of Mn. Nitrogen,
 K, Mg, and Zn foliage concentrations were not affected (Tables
 7-15).
 Water table control significantly increased foliar levels of N,
 K, and Al while decreasing foliage concentrations of Ca and Mn.
 Levels of other elements were not affected (Tables 7-15).
 Fertilization decreased concentrations of N, K, and Mn in
 fine roots, while increasing levels of P, Ca, and Mg in this part
 of the tree. Levels of Al and Zn were not affected by the diam-
 monium phosphate fertilizer. Maintaining the water table at 46
 or 92 cm resulted in increased fine root levels of N, Ca, Al, and
 Zn and decreased concentrations of P, K, and Mn when com-
 pared to plants grown on a fluctuating water table (Tables 7-
 15).
 Fertilization had no effect upon elemental concentrations in
lateral roots. Water table control increased levels of Al while
decreasing concentrations of K, Ca, Mg, Mn, and Zn. Nitrogen
and P levels were not affected (Tables 7-15).
 The changes in element concentrations following fertilization
and water table control generally reflected increased biomass
production of tops and root systems. The larger root systems
were able to exploit a larger soil volume made available by water
table control and thus were able to acquire more elements. At
the same time increased biomass due to both fertilization and
water table control resulted in dilution effects as described by
Tamm (13).

Total Element Content
 The formula, logarithm element weight = Bo + B1 (loga-
rithm diameter groundline) + B2 (logarithm tree height), was
used to estimate the total element content of the uncut trees in