Laserfiche WebLink
Custom Soil Resource Report <br /> Breast height <br /> An average height of 4.5 feet above the ground surface; the point on a tree <br /> where diameter measurements are ordinarily taken. <br /> Brush management <br /> Use of mechanical, chemical, or biological methods to make conditions <br /> favorable for reseeding or to reduce or eliminate competition from woody <br /> vegetation and thus allow understory grasses and forbs to recover. Brush <br /> management increases forage production and thus reduces the hazard of <br /> erosion. It can improve the habitat for some species of wildlife. <br /> Butte <br /> An isolated, generally flat-topped hill or mountain with relatively steep slopes <br /> and talus or precipitous cliffs and characterized by summit width that is less <br /> than the height of bounding escarpments; commonly topped by a caprock of <br /> resistant material and representing an erosion remnant carved from flat-lying <br /> rocks. <br /> Cable yarding <br /> A method of moving felled trees to a nearby central area for transport to a <br /> processing facility. Most cable yarding systems involve use of a drum, a pole, <br /> and wire cables in an arrangement similar to that of a rod and reel used for <br /> fishing. To reduce friction and soil disturbance, felled trees generally are reeled <br /> in while one end is lifted or the entire log is suspended. <br /> Calcareous soil <br /> A soil containing enough calcium carbonate (commonly combined with <br /> magnesium carbonate) to effervesce visibly when treated with cold, dilute <br /> hydrochloric acid. <br /> Caliche <br /> A general term for a prominent zone of secondary carbonate accumulation in <br /> surficial materials in warm, subhumid to and areas. Caliche is formed by both <br /> geologic and pedologic processes. Finely crystalline calcium carbonate forms a <br /> nearly continuous surface-coating and void-filling medium in geologic (parent) <br /> materials. Cementation ranges from weak in nonindurated forms to very strong <br /> in indurated forms. Other minerals (e.g., carbonates, silicate, and sulfate) may <br /> occur as accessory cements. Most petrocalcic horizons and some calcic <br /> horizons are caliche. <br /> California bearing ratio (CBR) <br /> The load-supporting capacity of a soil as compared to that of standard crushed <br /> limestone, expressed as a ratio. First standardized in California. A soil having a <br /> CBR of 16 supports 16 percent of the load that would be supported by standard <br /> crushed limestone, per unit area, with the same degree of distortion. <br /> Canopy <br /> The leafy crown of trees or shrubs. (See Crown.) <br /> 35 <br />