|
(
<br /> I ,� soi� s�ryeY
<br /> Iindex is 142. On the basis ot a 50-year site curve, the Typically, the surface layer is very dark grayish brown j
<br /> mean site index is 108. The mean annual increment at gravelly sandy loam about 7 inches thick. The upr sr part �
<br /> culmination (CMAI) for pouglas-tir at age 65 is 148 cubic of the subsoil is dark yellowish brown and dark brown i
<br /> Ifeet per acre. Among the trees oi limited extent are very gravelly sandy loam about 23 inches thick. The
<br /> western redcedar, western hemlock, and red alder. lower part is olive brown very gravelly sandy loam about
<br /> Among the common torest understory plants are salal, 5 inches thick. A weakly cemented hardpan is at a depth
<br /> evergreen huckleberry, Oregon-grape, brackenfern, and of ahout 35 inches. Depth to the hardpan ranges from
<br /> � westem swordfern. 20 to 40 inches.
<br /> This unit is well suited to year-round logging. Logging Included in this unit are small areas ot Everett,
<br /> roads require suitable suriacing for year•round use. Rock Indianola, 2nd Kitsap soils on terraces and uplands. Also
<br /> for road construction is not readily available on this unit, included are small areas o( Alderwood gravelly sandy
<br /> � but gravel is available in areas of adjacent Everett soils. loam, 2 to B percent slopes. Included areas make up �
<br /> Brush competition is the main limitation for the about 75 percent of the total acreage.
<br /> production of timber. Permeability of this Alderwood soil is moderately rapid
<br /> IReforestation can be accomplished by planting above the hardpan and very slow through it Available �
<br /> Douglas-tir seedlings. If seed trees are present, natural water capacity is low. EKective rcoting depth is 20 to 40 �
<br /> �c!forestation o( cutover areas by red alder occurs inches. RunoH is slow, and the hazard of water erosion �
<br /> periodically. When openings are made in the canopy, is slight. A seasonal perched water table is at a depth oi
<br /> 1 invading brushy plants, if not controlled, can prevent the 18 to 36 inches from January to March.
<br /> establishment of seedlings. Because the rooting depth is This unit is used mainly as woodland. It is also used �
<br /> restricted by a cemented pan, trees are subiect to for hay and pasture and for urban development.
<br /> windthrow. Douglas-fir is the main woodland species on this unit.
<br /> IThis unit is suited to hay and pasture. The main On the basis of a 100-year site curve, the mean site
<br /> limitations are the low available water capacity and the index is 142. On the basis of a 50-year site curve, the
<br /> weakly cemented hardpan, which limits the use of the mean site index is 108. The mean annual increment at
<br /> soil in this unit for deep-rooted plants. Grazing when the culmination (CMAI) for pouglas-fir at age 65 is 148 cubic ,
<br /> Isoil is wet results in compaction of the surtace layer, feet per acre. Among the trees of limited extent aie
<br /> poor tilth, and excessive runoH. western redcedar, western hemlock, and red alder.
<br /> Use of proper stocking rates, pasture rotation, and Among the common forest understory plants are salal,
<br /> restricted grazing during wet periods helps to keep the evergreen huckleberry, Oregon-grape, brackenfern, and
<br /> � pasture in good condition and to protect the soil from western swordfern.
<br /> erosion. Periodic mowing and spreading of the droppings This unit is well suited to year-round logging. Logging ;
<br /> help to maintain uniform growth, discourage selective roads require suitable surfacing for year•roun� use. Roc�
<br /> grazing, and reduce clumpy growlh. for road construction is not readily available on this unit.
<br /> ( Proper grazing practices and weed control are needed Brush competition is the main limitation far the i
<br /> for maximum qualiry of torage. In some years, production of timber. i
<br /> ' supplemental irrigation is also needed. Fertilizer is Reforestation can be accomplished by planting
<br /> needed tor optimum growth of grasses and legumes. Douglas-fir seedlings. If seed trees are present, natural +
<br /> The main limitations for homesites and septic tank re(orestation of cutover areas by red alder occurs �
<br /> absorption tields are the depth to the weakly cemented periodically. When openings are made in the canopy, �
<br /> hardpan and wetness. Drainage needs to be provided if invading brushy plants, if not controlled, can prevent the
<br /> buildings with basements and crawl spaces are e,tablishment of seedlings. Because the rooting depth is
<br /> constructed. Onsite waste disposal systems often fail or restricted by a cemented pan, trees are subject to i
<br /> � do not tunction properly during periods of high raintall. win��hrow.
<br /> The soil in this unit has an inherent abiliry to support This unit is suited to hay and pasture. The main
<br /> ' large loads. Topsoil needs to be stockpiled during site limitations are slope and the weakly cemented hardpen,
<br /> preparation and subsequently used to cover the exposed which limits the use oi the soil in this unit (or deep-
<br /> underlying material. r�oted plants. Grazing when the soil is wet results in
<br /> This map unit is in capability subclass IVe. �.ompaction of the surtace layer, poor tilth, and excessive
<br /> I runoff.
<br /> 2—Aldervvood gravelly sandy loam, 8 to 15 percent Fotation grazing hefps to maintain the qualiry of
<br /> alopes. This moderately well drained soil is on till plains. forage. Use of proper stocking rates, pasture rotation,
<br /> It is moderately deep over a hardpan. The soil formed in and restricted grazing during wet periods helps to keep
<br /> Iglacial till. Areas are long and narrow. They are about the pasture in good condition and to protect the soil from
<br /> 725 acres i� size. The native vegetation is mainly erosion. Periodic mowing and clipping help to maintain
<br /> conifers and hardwoods. Elevation is 50 to 550 feet. The uniform growth, discourage selective grazing, and reduce
<br /> � average annual precipitation is about 40 inches, the clumpy growth.
<br /> I average annual air temperature is about 50 degrees F, Proper grazing practices and weed control are needed �
<br /> and the average (rost-free season is 170 to 190 days. for maximum qualiN of forage. In some years, �
<br /> �
<br /> � i
<br />
|