Show selective selective beivide 0 for farm aarm lands V A v as t ON A 0 tile the soil conservation service Ser vici vict in tile the s southwestern region has a selective service system for the land just as the has hag a selective service method ot of cho choosing 0 ing its abbet men actie military duty to help farmers and ranches in boosting wartime agricultural production without causing serious erosion damage the service has prepared land use capability maps on more than acres acres of range land ane anc on oil nearly acres of 0 farm land lu in new mexico arizona colorado and utah lit in garfield county au iy acres of land near tropic Carin onville and Henri henrieville eville have been surveyed by consulting these maps the agricultural producer knows now intensely each acre of land ma be cultivated and lie he also understands the safeguards necessary to avoid soil and water losses al R isaacson laa acson chief of the regional physical surveys division disisto n in albuquerque states since ethe the various kinds of land are carefully outlined on aerial photographs the farmer or ranch erg era has an actual picture of hla property to guide him lit in his crop or range planning water wash colors are used to show instantly the various claw clawes classes es of land farm lands land are aie charted as class clas 1 I 11 II ill III or 01 IV IN and range lange an and d forest foiest lands landa as ceasr V VI 01 VII claas VIII represents lauds lands alch which should be retired front fi om use niese classifications isaacson Isaac sou explained depend upon a variety of ditc factors tors such as land slope elope exi existing Eting erosion damage type 4 pa of soil aulo amount of rainfall and height of 0 water table the picture above taken lit in a typical topical intermountain intel mountain valley 11 lu lusti strates ates five classes 0 of land class 11 II and class III are aie cultivated lands the other classes VI 6 VII and VIII are aie on range lange land class 1 I not shown on this picture represents lepie extremely good bood tanning fa land that has littie or 01 no erosion hazards class 11 II lands may be cultivated beifel with only simple conservation condei tall on practices such as low lov terraces use of oe fertilizers or 01 con tolar farming class III lands on tile the other hand are aie moie met e subject to erosion arid and may ma require complex consi elation practices such as installation of special us th or 01 dikes in ili the center of 0 the picture the land along the creek Is cabled class vill VIII it Is not suitable tor for cult hatlon and livestock should be excluded because of serious erosion hazard s it if vegetation eget atlon Is reni renamed Piu oed med flood waters will s slash lash into the fields on oil each side of the creek in ili the background 0 of the pie ture tin e at the base ot of the hills hill s is a narrow strip 0 of class VI laud land which la Is moderately model abeli susceptible to erosion arid and should be used only alj toi for livestock Ih estock grazing glazing the hills on an each side bide of the alley are aie classified as VII or 01 VIII land depending largely upon the severity of land slope and lack of vegetative ege protection this fills land erodes very ery easily par if enuch of tile the egeata tive tie cover Is removed eithel overgrazing glazing or 01 through unwise tit liber harvesting giai nesting it these watershed dieas areas were den denuded tided rainwater would rush lush downhill cutting deep gullies arid and damaging the cultivated land that lies in the valley nalley below severe restrictions in use are aie toi for the class VII lands and exclusion of livestock from the class VIII additional land use capability maps me are being prepared in critical production areas isaacson Iha acson stated from existing surveys on more th than an 24 acres of 0 range lange land arid and more moie than acres ot of laim farm land |