|
r~,~ t f,~
<br />a,:,rt w~ -
<br />~`- x ,~
<br />v ,114 Loamy Plains MLRA 49 & 70
<br />• c If ecological regression is cattle induced, grasses such as
<br />western wheatgrass, sideoats grama, New Mexico feathergrass,
<br />~ - ~ -needleandhread ahd Indian ricegrass will disappear from the
<br />~.~ - _-- plant community. Galleta, blue grama will increase. If
<br />„~; i ""~"r"egressiori~is sheep induced heath aster, scarler globemallow,.
<br />~y`: t ,': fourwing saltbush, fringed sagebrush, winterfat, green plume
<br />,'^,,,~r, 4~ 'rabbithrush would be reduced. With further deterioration of
<br />!`~:_,~ ,_ :. this site, galleta and blue grama will disappear and will be
<br />°~;,+:}-~--_.-~ •~ -- izeplaced by ring muhly, sand dropseed and red three-awn. These
<br />,;,y ., _. _.__grasses.with continued destructive grazing practices will be
<br />3~, xf -_ -invaded with little barley, tumblegrass cheatgrass and hairy
<br />,.,.5
<br />,~,,__ , '. t;idens. The brush species that increase as range conditions
<br />" a deteriorate are broom snakeweeed, fringed sagebrush,
<br />s _- ~'- alkingstick cholla, plains pricklypear, curlycup gumweed. 1j(J//
<br />L °i'.., t /Pr~ -- :r ._ ^~<~V :.rte
<br />~ { r ' ' ' ~~~ -~'kMatrimonyvine is'au introduced species that occurs in swalea ~ ~~
<br />` •~ were ewer is'available from runoff of adjacent terrain. }
<br />~. -_ 1 K [' k , rR 4cg k wt r m;~r 'rz - <=,
<br />,~
<br />~"~ ` + `.d Vegetation densityl/ is approximately 20-25 percent.
<br />_.
<br />,:, -.~ „4 :~Annual~Prod'uction"
<br />.-~ r,a~~+,..~ ,,.,_. ~._ -
<br />~w a
<br />,~- "` ~~`;-,`If `thhe;°range is `in excellent condition, the approximate total annual
<br />~ r production~`'(air`dry) ranges are:
<br />.r
<br />''~~F„'" '~ 'a~ ~'~.Favoralile Years' 1600 lb/ac 1814 kg/ha
<br />,:,.~ ~~~°NormaLYears 1200 lb/ac 1360 kg/ha
<br />rub ,''~Unfavoiable~Years 600 lb/ac 680 kg/ha
<br />,: '' aft" Ry '3`~,F 6'. `~'Y~.{ ryt -,:f Afy
<br />~ 3c ts°Of~`this; production Oto ~S percent will likely be unpalatable to
<br />S ,..
<br />~,''i.e+' 's h~ ~livesto`ck "`;"
<br />A ,.i ;
<br />,a a .~;~ ~: ~.
<br />„ ; 5 !;Soils .
<br />~: ~: } `;, ; '"~ ~"a The`soils``of`Ehi§ site are deep, well drained and occur on
<br />n~; =,uglands.' The Baca soils are formed in loess derived dominantly
<br />`~`''e= ~ _ from sedimentary rock. The Capulin soils are on and near basalt
<br />`'"=. _ ,capped mesas. The surface soils are silt loans and loans,
<br />'%~ ~ ~~ ~ ~ respectively ;The Baca subsoils and substratum is silty clay
<br />''" ' ~' ~ "~~` ~ loam ~ The`~CapuYin subsoil is a clay loam and the substratum is
<br />-fit{ y: 1 4i .. £ _ y
<br />~~4 ~ a;..gravelly,'aoam: -These soils are mildly alkaline to moderately
<br />_~ro,.,,r.... ,, ,,:.~°'• ,alkaline-'and- calcareous below 12 inches (30 cm) depth.
<br />~T...,h , _ - ..__
<br />,~~ „ ~ tTorreon soils. are formed, over basalt and similar to Capulin
<br />5A ,: ,~ .r ~" ~'~` soils except 'with more clayey subsoils.
<br />1$ F_ .{ -~ yn- _ _ _
<br />~° ~~:;~' - ' v° -»+~~ ~Permeabihty is moderate to moderately slow with a high
<br />'i~~~- '~ a' ~`•~` -~;-~availa$1e`~'wate'r.~'capacify. Runoff is slow and the hazard of
<br />v - r'-;SASS-., r - Y- .r ,.. .cw .,z
<br />'a--.- water erosion---is-h-igh to-v_ery-high on the Baca soils when the
<br />°" '~"`'-° vegetation is depleted. The runoff on the Capulin is medium
<br />.,=
<br />;;' with moderate water erosion hazard.
<br />~, ., s. _.. ~.. ~..,..~. . ~ __ ._._ _ . - .. _
<br />•~ ~i ""` '.'~' Botli these soihs are better than 60 inches (1.5 m) deep.
<br />~~`'~;' 1/' Vegetation density =:basal area. This is the area of ground surface
<br />ir, covered by,Fthe stem `or stems. Usually, this is measured 1 inch (2.54 cm)
<br />n -++ above the. soil in contrast to the full spread of perennial foliage.
<br />
|