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• • / • <br />c CO-CPA-1 ~~ <br />4/82 . <br />(140-12-11) <br />CAPI.BILITY CROUPS Ors SOILS <br />Cepebility claeolficetion is the grouping, of soils to shoe, in s ge.nernl way, <br />their euftnbilfty for most kinds of tarminR• It is a practical elesalflcntlon <br />bneed'on limitations of the Boils, the risk of damage vhen they are used, and <br />the vey they respond to treatment. The soils are cleasified according to <br />degree and kind of permanent limitation, but vlthout consideration of ma,Jor <br />and generally expensive lnndforming that would change the elope, depth, or <br />other chnracteYistics of the soils; and vlthout consideration of possible but <br />wlikely meJor reclamation protects. <br />Ponan•numernls ere used to shoe the 4 broad Capability Clnesea and letters <br />follow the cl:.ee numeral to indicste the principal problem or hazard, Clnctce <br />end sub-classes used ere nn follows: <br />Class I - F'ev or no 11m1tntions that restrict choice of crops or require <br />conservation measures. <br />Clnae II - Some 11m1tations that reduce the choice of crops or require <br />moderate conservetlon measures. <br />Clnen III - Severe limltatlona that reduce choice of crops or require <br />special conservation practices or both. <br />Clnan IY - Very severe limitations that restrict the choice of crops, require <br />very careful canagcment, or both. <br />Claca V - 17ot suited for cultivation but hat few or no hnzerds vhen used fog <br />p~sturc, range, voodlcnL o: vi1d11Pc. <br />Claoa VI -'17ot suited for cultivation. Scvcrc limltstians. Suited fo.- r::n~,c, <br />gesture, woodland or vlldli;e v1tr. ccre:ul n;.ra~c¢ent and needed conscrvatlon <br />prr.ctlces. <br />C1: :~ VII - 1:ot suited for cu]tivctlon. V~.-y ::ewers limitations. Suited ter <br />r:.r~,c, voodlcnd o.- wildlife uncs 1; c~rc.^~li~ c„ isged. Usually c.:nnot apply <br />-.c1c_1 pr~cticcc such ca pitting, fu.{:o-;r;;, seeding, etc. <br />C:. 'riiI - ;tot r.cit~S ~o: ccitiv,.tlo:, ...- P:.sturc o: voc~lr~d. Suitcc: <br />c... icr .-ccrcctloa, :i~L.:c, ....,.cr su;,,~:y c: o:.thctic pi::-p.o>..:. <br />e - :~ onion by wind or valet is the rv:~o.- problem, <br />~~ - F.zccsslvc water ouch :.t vctncsc, o•. c::iov, or hi(;h v:.tcr trblc. <br />e - ~i:,Jor problem is in the soil. It cry be too sh,_llov, too Nervy, stony, <br />low in fertility, eslty, c1kn11ne or have low moisture enpaelty. <br />e - Clicale is the c~,Jo.- hazard. Growing cecson may be very short, there 1n <br />a shortage of rainfcll or both. <br />£xc.plea: <br />• IIIe - Clnae III lend where erosion Ss the cs,Jor heznrd. <br />IVc -Class IV land where the clir.::.te 1s the Bator problem. <br />