Soils of the - Agriculture and Agri-Food Canada

APPENDIX I
SOIL REACTION CLASSES *
Soil reaction (pH) can be measured in several ways . In this report, where no method of determination i s
indicated, the method is "pH meter (0 .01 M CaCI 2 )" .
Reaction Class
pH Value s
Extremely acid 8 . 5
APPENDIX J
WATER HOLDING CAPACTIY
Water holding (storage) capacity, in the context of this report, refers to the soils' ability to retain water agains t
the pull of gravity and is inferred mainly from the particle size composition of the soil (texture), the soil particl e
arrangement (structure), and the soil depth . The depth generally used in this report is 1 m . The general value s
used in this report are :
Low Water Holding Capacity-4 in . (10 cm)/1 ft . (0 .3 m) of soi l
Walmsley, M ., G . Utzig, T. Vold, D . Moon and J. van Barneveld, editors . 1980 . Describing Ecosystems in the Field . RAB Technical Paper 2 ;
Resource Analysis Branch, B .C . Ministry of Environment, and Research Branch, B .C . Ministry of Forests, Victoria, B .C .
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