Laserfiche WebLink
• <br />UNITED STATES DEPARTMENT OF AGRICULTURE <br />SOIL CONSERVATION SERVICE <br />._,,. 3, 198'_ <br />~niras .:cal Co. <br />..C. 'ox 24? <br />'.riri~ad, Cc. ~10c2 <br />~ozr .~. :ar~sic'i; <br />T.:o „etc of soil te_ s ::cr~ tar:c~ to deter.•nire pascirle <br />scurce~ of t.opso_1 at the .1::i-as 047. r1r.c. 6ttzched is a ~.;. <br />of file zrea a:P. quantitative ciescriptior.s of each sample plot. - <br />escri_tiers inc'_ude soil horiocao, `,e;aares, r', and salt <br />,. _..^.tcrt. '^.:c p'_cts are rii:•id.':i irtc t::c test units (I u IIj <br />ti.at a-t. outlined on t!~:c -~.an <br />Soil test i (plots 1-?j hs a considera`le anount of soi'_ <br />::a*.crial ao z possi'.ae source for topsoil. ??:e source however, <br />is ^_cnfine tc apprma-.ately 35C feet •.ic _t of tide cast drainage <br />and in the d-air.aCe. "he r.;lative de_ti: of the sa.rce zPpoans <br />to b. rir.~ gal «_ arproxi~ztely 1CC fr: •xpslo_a, the soils a=~ <br />_esa ".:z., 1C inehc~ t:~ic;:. T':is =raa _s c'_iniata, by the <br />yo__ew Dolor ca the mar, The soi_ ;:ns three $isti^Ct 'iori_onS; <br />:., 8, a^.;i C. The A norizor. _c ccr;~ {hi7~ end i= ic'.: in organic <br />-.titter du. pzim,:ril:: to t::•' produmin:nce of ;inion end junlcer <br />trees as the Aajor tyre c. vaget.:tio;:. The B hcrizon has <br />structurzl devele~:;cnt alur.g xith ~_:; increase in card aad cla <br />carte.^.'. fro:.. the s•.;:•__*ace horizon, 6dth the A ar.:l pl hori~on~ are <br />~7. ,., <br />neutrr.l in Ph n-; .", zre .^.orca]carCeus, and hove 0 to 1 <br />percoat salt ccnt~nt. &,t.h horizons heve simils ph,sical prop- <br />erties and or,-anic natter oortent co ?t io not necessary to <br />stock pile t`.em sepa_~tely. ''.'he d and 8 horironc can `~e dlstln- <br />~uishe,i fro:. t o C ]iorizon Dy their ctar;:cr color and higher clay <br />contort. Colcrs also r..ay appear redder. '"hc C horizon 1s light <br />O <br />• <br />178 <br />