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111111111 11111111IIIIII1111111111111111111111111111111 ll 111 I I I Ill 111111 1111 IIIIIIIIIIIII I I I IIIIIIl i I Hill i i u I u u i n u i I ......"....' <br /> 12/18/2001 TUE 09:21 FAX 2099466036 USDA STOCKTON SERC CTR 0]003 <br /> VEGETATIVE SOIL GROUPS <br /> Group Description <br /> A ALL CLIIIATICALLY ADAPTED PLANTS SUITED. Soil are deep to very deep, <br /> moderately coarse to medium textured, moderately well to well-drained, <br /> moderately rapidly to moderately slowly permeable. (Soils in this group <br /> can have slight wetness and slight salinity or alkalinity.) <br /> B Choice of plants limited by DROUTHINESS AND LOW FERTILITY LEVEL. Soils <br /> are coarse to gravelly medium textured, excessively drained, with less <br /> than five inches of available water-holding capacity in the root zone. <br /> C Choice of plants limited by FINE TEXTURES. Soils are deep to very deep, <br /> moderately fine to fine-textured, moderately well-drained, moderately <br /> slowly to slowly permeable. <br /> D Choice of plants limited by VERY SLOWLY PERMEABLE (CLAYPAN) SUBSOILS. <br /> Soils are moderately well-drained, with slow or very slow subsoil <br /> permeability. <br /> E Choice of lants limited b WETNESS. Soils are imperfectly to very poorly <br /> drained. Drained soil phases will be placed in appropriate group <br /> according to their current drainage status. Slight salinity and or <br /> alkalinity may be present.) <br /> F Choice of plants limited by SALINITY OR ALKALINITY. Soils are moderately <br /> to strongly saline alkali, and usually imperfectly to poorly drained. <br /> G Choice of plants limited by DEPTH. Soils are shallow to moderately deep, <br /> well-drained, over hardpan, bedrock or other unfractured dense material. <br /> H Choice of_plants limited by LOW pH. Soils are strongly to extremely acid; <br /> pH is less than 5.1. <br /> I Choice of plants limited by TORIC PROPERTIES. Soils are usually <br /> moderately to strongly serpentine. <br /> J CHOICE OF PLANTS DEPENDS UPON ON-SITE INVESTIGATION. Soils included those <br /> in the miscellaneous non-arable category, such as river wash, stony or <br /> rocky upland, etc. <br /> 6 <br /> FROM 2099466036 TO 12/18/01 9: 24 AM Page 3 <br /> Vegetative Groups <br /> IXC <br />