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<br />. <br /> <br />. <br />€A-CPA-6 <br />5-81 <br /> <br />J' IS. Depart:lllent of Agriculture <br />.1 Con.ervation Service <br /> <br />THE LAND CAP ABILITY CLASSIFICATION <br /> <br />The capability classification is a practical grouping of soils. Soils and climate are considered <br />together as they influence use, management, and production pn the rarm or ranch. <br /> <br />The classification contains two general divisions: 0) Land suited for cultivation and other uses, <br />aDd (2) land limited in use and generally not suited for cultivation. Each of these broad divi- <br />sions has rour classes which are shown on tbe map by . standard color and number. The hazards <br />and limitations in use increase as the class number increases. Clus I bas few hu.ards or <br />limitations, or none, whereas Class VIII has a great many. <br /> <br />LA"D SUITED FOR CULTIVATION <br />AND OTHER USES <br /> <br />B Soli. a. Ch.. I hue few or AO <br />CLASS I h.iuLion. or hnarda. n.., .a,. <br />~. u..d .aCely lor cuILa.aL.d <br />crvp., paatllr.. n.... _dl_d. <br />.r waldIH.. <br /> <br />B <br /> <br />ICLASS I "l <br /> <br />Icu.S IVI <br /> <br />Soil. iA Claa. II ha.. Ce. li.- <br />iLaLiOft. or halarda. Si~l. coo- <br />..r..taon pracLice~ .re ...ded <br />wftOD ~lti.at.d. Th.y ar. .lIit.d <br />to cwlLi.ated crap., p.aLur., <br />ru... woodland, or wildli!.. <br /> <br />Soil. i. CI... III ha.. .or. <br />li.itataona .nd haaard. than <br />tao.. ia Cia.. II. n..,. require <br />.or. di!ficult or c~lex con- <br />..nauon practicea when cui La- <br />YUed. ney au aui ted k cul- <br />Li..ted crop.. p..~r.. r.a,.. <br />_oodlaDd. or wald11!e. <br /> <br />Soil. ia Cla.. IV ha.e .re.ter <br />li.itatio.. a.d hal.rd. tban <br />Ch.. III. SLill aD" diIfic:vlt <br />or c08plex ....yr.. .re a..d.d <br />_... cultl.at.d. They ar. .yited <br />\0 c.lu.at.d cropa. pa.tur.. <br />ra.r.. _oodlaaG. or _ildlif.. <br /> <br />LAND LIMITED IN USE-~CENERALLY <br />NOT SUITED FOR CULTIV4TION <br /> <br />EJ Seila i. Cia.. V laue Ii tth or <br />eLAS, S V .. .roo.on Iaaa.rd but hue other <br />li.iLaUGD. ta.L pro.ont Ao....I <br />tilla.. for cylti.a~.d crop.. <br />Tlae,. ar. .uited to pa.tyre, <br />r..... ..odland. or w,ldld.. <br /> <br />I CUSS VII <br /> <br />ICLASS VIII <br /> <br />ICLASS vn~ <br /> <br />Soi 10 i. Cla.. V1 laay. ".U a <br />liaiuuCIII. or baaarcia th.t .ue <br />tA.. ;..orally ~.y.t.d for Cyj- <br />ta.aC1GD. Th.y ar. .uited I.rlc- <br />1,. to p..turo. rUla, ..odl&11d, <br />er .i Idli!e. <br /> <br />Soil. i. CIa.. VII h... .ary <br />....r. li.lt.tion. or hallrda <br />that .... tA_ ~n.r.lIy ~U\ll L. <br />od lor cultiuLion. Th.y are <br />'lIit.d k .ralin.. woodlaad, or <br />-ildlife. <br /> <br />Soil. and Iud for.. i. Clua <br />VIII hay. li.lt.tlon. and h.l- <br />.rd. thae pr..ont thoir y.e lor <br />culei..ted crop., p..ture, <br />rea,., or woodland. They..., be <br />..ed for r.cr..ti_. .ildllI., <br />or _n.r auppl,.. <br /> <br />Capability classes are divided into subclasses. These show the principal kinds of conserva- <br />tion problems involved. The subclasses are: "e" for erosion. "w" Cor wetness, liS" Cor soil, <br />and lie" for climate. <br /> <br />Capability classes and subclasses, in turn, may be divided into capability units. A capability <br />unit contains soils that are nearly alike in plant growth and in managemeat Deeds. <br /> <br />The units are: "1" erosion hazard; "2" wetness problems; "3" .lowly permeable subsoil; Ill" <br />coarse texture, low water-holding capacity, "5" fine textures, tillage problems; "6" salinity <br />or alkali; "7" cobbly. rocky. or stony; "s" root zone limitation, bedrock, or hardpan; "9" low <br />Cenility, acidity, or toxic properties; and "0" very coarse textuM substratum. <br /> <br />CIau III sa t X AMP L .: <br /> <br />/ " <br />"' Exr.::l. "N <br />SlIbclAU llt,i' U <br /> <br />-_7 <br />