OCR Text |
Show OUTLINE OF THE LAND-CAPABILITY CLASSIFICATION MAJOR LAND-USE SUITABILITY (Broad grouping of limitations) LAND-CAPABILITY CLASS (Degree of limitations) LAND-CAPABILITY SUBCLASS (Kind of limitations) (Groupings of land-capability units. Examples of possible subclasses in class IH :) LAND-CAPABILITY UNIT (Distinctive physical (Land-management groups based on permanent physical factors. Example:) Suited for cultivation. Few limitations. Wide latitude for each use. Very good land from every standpoint. Moderate limitations or risks ot damage. Good land from oil-around standpoint. Severe limitations or risks of damage. Regular cultivation possible if limitations ore observed. Limited by hazard of water erosion; moderately sloping land. I3-C-2 Moderately sloping, slightly acid soils on limestone. Limited by excess water; needs drainage for cultivation. Limited by low moisture capacity; sandy land. Limited by tight, very slowly permeable subsoils; claypan land. Very severe limitations. Suited for occasional cultivation or for some kind of limited cultivation. 9-C-2 Moderately sloping, highly acid soils on sandstone or shale. Not suited for cultivation-, suited for permonent vegetotion. Not suited for cultivation because of wetness, stones, overflows, etc. Few land limitations affect grazing or forestry use. for cultivation. Moderate limitations for grazing or forestry. Very steep, rough, arid, wet, etc. Severe limitations for grazing or forestry. Groupings of range, pasture, or forest sites. Extremely rough, arid, swampy, etc. Not suited for cultivation, grazing, or forestry. Suited for wildlife, watersheds, or recreation. Land-monogement groups based on permanent physical factors, such as range sites or forest sites. FIGURE 36.-Outline of the land capability classifications. 373 |