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(c) The following are not considered : distances to market, kind of roads, location or size offarms, type of ownership, cultural patterns, skills or resources of individual operators, andhazard of crop damage by storm .(d)(e)The classification includes capabilities of soils for common field crops such as forage cropsand small grains. It does not include capabilities for other special crops, such as canola orpotatoes, or for horticultural crops.Capability classes are subject to change, as new information on the properties, behaviourand responses of soils becomes available . In some cases, technological advances may alsonecessitate changes.(2) Capability classification for organic soilsThe previous discussion on soil capability classification applies only to mineral soils, andcannot be used for organic soils . A separate capability system has been devised for organic soils,using seven capability classes that are determined according to the following soil characteristics :stage of decomposition (K), reaction (F), climate (C), substratum texture, wood content (L) anddepth of organic soil (H) . Definitions of these soil characteristics, and how they are used todetermine organic soil capability classes, are discussed by Hoffman and Acton (15). In thisclassification system, intensive horticultural use is assumed, e.g. vegetable production.Capability ClassesClass 1 - Organic soils of this class have no water, topographical or pH limitations, and aredeep and level .Class 2 - Organic soils in Class 2 have one limitation that restricts their use in a minor way.The limitation may be woodiness, reaction, flooding, topography, depth or climate.Class 3 - Organic soils in this class have moderately severe limitations that restrict therange of crops, or that require special management practices .Class 4 - Soils in this class have limitations that severely restrict the range of crops, orrequire special development and management practices. Reclamation and management costs willbe high .Class 5 -- ;Soils of this class have such severe limitations that they are restricted to theproduction of perennial forage or other specially adapted crops. Large scale reclamation is notfeasible.Class 6 - Class 6 organic soils are capable of producing only indigenous crops, andimprovement practices are, ff:ot feasible.Class 7 - Organic soils of this class have no capability for agriculture .Development of organic soils for agricultural use also depends on the feasibility of clearingvegetation, drainage and water level control (15) . These are site-specific factors that are notconsidered for the general organic soil capabilities .The agricultural capability of soils of the Ville-Marie map sheet area, is shown in Table 7.