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.. !. ~ CO-CPA-1 4/82 (190-12-11) CAPABILITY GROUPS OF SDILS Capability claaslflcation is Lhe grouplnq of soils to shoe, in n general vny, their suitability for moat kinds of farming. It Ss s practical cleself'icntlon based on limitations of the soils, the risk of damage when they are used, and the way they respond to treatment. The soils are classified according to degree and kind of permanent limitation, but vfthout consideration of ;aa,Jor and generally expensive landforming Lhat would change the slope, depth, or other characterietice of the soils; and vfthout consideration of poeei'ole but unlikely maJor reclamation pro,Jects. Roman numerals ere uaed to show the `J broad Capa6111ty Claescs and letters follow the class numeral to Sndlcate the principal problem or hazard. Classes and sub-claeaeo used e.re ae follows: Clnee I - Fev or no lfmltetions that restrict choice of crops or require • conservation measures. Clans II ~~~Some limitations that reduce the choice of crops or require moderate conservation measures. Clnea III - Severe limitations that reduce choice of crops or require special coneervatlon prnetices or both. Clnea IY'- Very severe limitations that restrict the choice of crops, require. very careful eianngement, or both. Clans V - Not nutted for cultlvntlon but has fcv or no hazards when uaed for pasture, range, woodland or wildlife. C].aaa VI - Not suited for cultivation. Severe limltatione. Suited for' range, pasture, woodland or wildlife with careful management and needed coneervatlon prncticee. Clnaa YII - Not suited for cultivation. Very severe limitations. Suited for range, woodland or wildlife uses it carefully managed. Usually cannot apply physical pr acticee ouch es pitting, furrowing, seeding, etc. Clae• VIII - Not suited for cultlvaLlon, range, posture or woodland. Suited only for recreation, wildlife, voter supply or esthetic purposes. e - E7oelon by wind or voter is the maJor problem. v - F~cceeeive enter such se wetness, overflow, or high enter table. a - MaJor problem le in the Boil. It may be too shallow, too heavy, etcny, low in fertility, salty, alkaline or have low moisture capacity. c - Climate is the maJor hazard. Growing Benson may be very short, there ie a shortage of rainfall or both. FScanples IIIe - Clnea III land where erosion Ss the maJ or hazard. IVs - Class IV land where the clime to is the ma•for problem.