However, empirical data suggest that this perception does not correspond to reality. See, e.g., Eisenberg & Schwab, supra note 1; Stewart J. Schwab & Theodore Eisenberg, Explaining Constitutional Tort Litigation: The InÂºuence of the Attorney Fees Statute and. the Government as Defendant, 73 Cornell L. Rev. 719 (1988).
Since the acid or alkaline ash designation is based on the residue left on combustion rather than the acidity of the food, foods such as citrus fruits that are generally considered acidic are actually considered alkaline producing in this diet.
Alkali, or alkaline, soils are clay soils with high pH (> 8.5), a poor soil structure and a low infiltration capacity. Often they have a hard calcareous layer at 0.5 to 1 metre depth.