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CO-CPA-1 6/89 (180-12-11) CAFAL-:ILITY GROUi~S OF SOILS r1 L_J Capability classificatic~r~ is grouping of soils to show ire a general way, their suitability fvr roost kinds of fanning. It is a practical classifcation based limitations of the sail, tl-.e rill: of damage when they are used ar~d the way the' respond to treatment. The soils are classified according to degree and kind o permanent limitation, but witF,~,ut consideration of major and general er.pensive landforrni.ng that would change the slope, deptY~, r~r^ other characteristics of ttr soils; and without cor~dideration of possible t,ut unlikely major recarnation projects. Fornan umerals are used to stow the '~ broad Capability Classes and letters foll the class numeral tr, indicataed the principal prat~lern or hazard. Classes and sub-classes used ar-e as follows: Class I - Few or no limitations that restrict choice of crops or require conservation measures. Class II - Some limitations that reduce the choice of crops or require rnoderat conservation measures. Class III - Severe lirnitatior~s that reduce choice of craps ar require special conservation practices or both. lass IV - Very severe lirnitatior~ that restrict: the ct~oic of crops, require vei areful management, ar both. Class V - Not suited for cultivation but has few or rya hazards when used far pasuture, range, woodland ar wildlife. Class VI - Nat suited for cultivation. Very severe limitations. Suited for range, pasture, woodland ar wildlife with careful rnanagernent and needed conseravtion practices. Class VII - Not suited for cultivation. very severe limitations. Suited far range, woodland or wildlife use if carefully managed. Usually cannot apply physical practices such as pitting, furrowing seeding, etc. Cass VIII - Not suited for cultivation, range, pasture or woodland. Suited onl•, for recreation, wildlife, water supply esthetic purposses. e - Erosion I?y w i nd or water i s the rna,iar Arab I ern w - E;:cessive water such as wetness, overflow ..r high water table. s - Major problem is in the sail. It may be to shallow, too Freavy, stony, low i fertility, salty, alkaline or gave law moisture capacity. c - Climate is the major- hazard. Gr-awing season may be very short, they is a shortage of rainfall or both. Examples: • IIIe - Class III land where erosion is the major hazard. IVc - Glass IV land where the climate is the major problem.