Soil Survey of Jackson County, Texas Page: 48
vii, 147, [2] p., 50 folded p. of plates : ill., maps (some col.) ; 28 cm.View a full description of this book.
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Soil Survey
Salty Prairie range site. The Francitas, Livco, and
Palacios soils in map units FcA, LvA, and PaA are in
this site. The climax vegetation is a salty prairie. The
composition, by weight, is about 95 percent grasses
and 5 percent forbs.
Gulf cordgrass makes up about 65 percent of the
climax vegetation. Other grasses include switchgrass,
indiangrass, little bluestemn, common reedgrass,
knotroot bristlegrass, longtom, seashore saltgrass, and
shoregrass. Forbs include bushy sea-oxeye and slim
aster.
If regression occurs as a result of heavy grazing,
bluestem, switchgrass, indiangrass, and common
reedgrass are replaced by gulf cordgrass,
bermudagrass, red lovegrass, pickleweed, croton, bitter
sneezeweed, and matrimonyvine.
Sandy range site. The Milby soil in map unit MbB is
in this site. The climax vegetation is a tall grass
savanna that has a canopy of 25 percent. The
composition, by weight, is about 70 percent grasses, 25
percent trees, and 5 percent forbs.
Little bluestem, switchgrass, Florida paspalum,
indiangrass, and purpletop make up about 60 percent of
the climax vegetation. Other grasses include brownseed
paspalum, tall dropseed, silver bluestem, low panicums,
low paspalums, and sedges. Woody plants include post
oak, live oak, blackjack oak, yaupon, American
beautyberry, and greenbriar. Forbs include partridge
pea, bundleflower, snoutbean, wildbean, and sensitive
briar.
If regression occurs because of heavy grazing, little
bluestem, indiangrass, purpletop, and switchgrass are
replaced by brownseed paspalum, smutgrass, and
broomsedge bluestem and woody plants, such as
running live oak, post oak, and blackjack oak. Oak, elm,
American beautyberry, greenbriar, yaupon, and other
woody plants generally increase in abundance until the
site resembles a scrub forest. The understory consists
of shade-tolerant herbaceous plants, such as sedges
and low panicums. If heavy grazing continues for many
years, smutgrass, bushybeard bluestem, red lovegrass,
sandbur, wild indigo, bitter sneezeweed, yankeeweed,
and sennabean increase significantly in extent.
Sandy Bottomland range site. The Zalco soil in map
unit Za is in this site. The climax vegetation is a tall
grass savanna. The composition, by weight, is about 75
percent grasses, 20 percent woody plants, and 5
percent forbs.
Switchgrass, little bluestem, big bluestem,
indiangrass, Virginia wildrye, purpletop, and knotroot
bristlegrass make up about 75 percent of the climax
vegetation. Woody plants include cottonwood,hackberry, live oak, and willows. Forbs include partridge
pea, American snoutbean, and sensitive briar.
If regression occurs because of heavy grazing,
switchgrass, little bluestem, indiangrass, Virginia
wildrye, and purpletop are replaced by balsamscale,
knotroot bristlegrass, and red lovegrass. If heavy
grazing continues for many years, mesquite, grassbur,
bullnettle, willows, and hairy grama increase
significantly in extent.
Sandy Loam range site. The Inez and Morales soils
in map units InB and MrA are in this site (fig. 13). The
climax vegetation is a tall grass savanna that has a
canopy of 20 to 25 percent. The composition, by weight,
is about 70 percent grasses, 25 percent woody plants,
and 5 percent forbs.
Little bluestem, switchgrass, Florida paspalum,
indiangrass, and purpletop make up about 55 percent of
the climax vegetation. Other grasses include brownseed
paspalum, tall dropseed, silver bluestem, low panicums,
low paspalums, Texas wintergrass, and sedges. Woody
plants include post oak, live oak, blackjack oak, yaupon,
American beautyberry, and greenbriar. Forbs include
partridge pea, bundleflower, snoutbean, wildbean, and
sensitive briar.
If regression occurs because of heavy grazing, little
bluestem, indiangrass, purpletop, and switchgrass are
replaced by brownseed paspalum and woody plants,
such as running live oak, post oak, and blackjack oak.
Oak, elm, American beautyberry, greenbriar, yaupon,
and other woody plants generally increase in extent
until the site resembles a scrub forest that has an
understory of shade-tolerant, herbaceous plants, such
as sedges and low panicums. If heavy grazing
continues for many years, broomsedge bluestem, red
lovegrass, sandbur, wild indigo, bitter sneezeweed,
yankeeweed, and sennabean increase significantly in
extent.
Sandy Prairie range site. The Fordtran soil in map
unit FaB is in this site. The climax vegetation is a true
prairie. The composition, by weight, is about 95 percent
grasses and 5 percent forbs.
Little bluestem, indiangrass, crinkleawn, and big
bluestem make up about 75 percent of the climax
vegetation. Other grasses include eastern gamagrass,
Florida paspalum, switchgrass, brownseed paspalum,
knotroot bristlegrass, low panicums, fringeleaf
paspalum, sedges, slender bluestem, and Pan
American balsamscale. Forbs include sensitive briar,
bundleflower, and yellow neptunia.
If regression occurs because of heavy grazing, little
bluestem, indiangrass, crinkleawn, switchgrass, big
bluestem, and eastern gamagrass are replaced by48
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Miller, Wesley L. Soil Survey of Jackson County, Texas, book, May 1997; Washington D.C.. (https://texashistory.unt.edu/ark:/67531/metapth224539/m1/58/: accessed April 24, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.