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<br /> <br /> :~ ~~ •3 <br />h <br />~~..• f .. _ 1 <br />~, <br /> <br />ti ~ <br /> ~ <br />~ <br /> UNITED STATES DEPARTMENT OF AGR1tULTURF ~ ~'' <br />~ <br />`~"y - <br />f <br />- Soil Conservation Service Colorado ~ "" '; ~"?r •~~~~~ ~ + <br />` -- <br /> Teehnigal Guide ~~'. ". RANGE SITE <br />IIO.?~02~ i;~ - - <br />` : SacttoK.l'I E - - - ~; = . .__ '-r.:r°~' - - - . <br />',' "#lsFd Of <br />. <br /> . <br />DecdnbaR"~ 'Y . <br /> - <br /> ~~ <br /> . RANGE SITE DESCRIPTION `` ~ : ~ :.: •,.' .±"•t_~-•;,. <br /> <br /> for '„1 <br /> <br />- . <br />: •:~ <br />! <br />s <br /> LOAMY FOOTHILL - r <br />~ <br />- : <br />- ;:~. 3. <br />- ~ ~~~~ <br /> . ~ry , <br /> Land Resource Area: Southern Rocky Nou ntaln Foothills (k9) ".r'~ti:n:' <br /> . <br />~ r <br /> A. PHYSICAL CHARACTERISTICS ~ _ <br />.' :~,,:: <br /> 1.. Physlographic Features ~ `' ~:'~ <br />2. <br />• <br />:-~ <br />3• <br />i <br />-# - <br />. .: <br />K <br />. ~ -~•. <br />Topography varies from narrow valleys to large open <br />flafs to =~~: <br />. <br />rolling hills. Slopes vary from nearly level to 20E. , <br />~`• <br />- .:::: <br />Elevation ranges from 5000 to 7000 feet.' ~ '~,~ <br />:V <br /> <br />Cilmatic Features <br />Average annual precipitation is between 12 to 16 Inches of - .. <br />~ <br />which 60 to 70$ falls during the growing season. Optimum ~ ''^~= <br />. <br />~ <br />- <br /> <br />growing season for native plants is from March to September. .,,- <br />.^ <br />_ '~'-`'1r <br />The frost-free period ranges <br />from 130 to 150 days. Snow during `~'`t'`::~~ <br />. <br />Y,arch and April can amount to significant moisture in sous years. <br />Temperature ranges from the 90°s to (-) 20°s.. ~~,';"~~'iy;: <br /> <br />Native (potential) Vegetation ,_ +`~~-- ~~' <br />:~_>_~- <br />This site has a grassland aspect with mJd-grasses-- mainly '. ,'• <br />'needle grasses and western wheatgrass dominating. Harm season - <br />grasses become increasingiy~important in the south part of the <br />sand resource area. The primary under-story plants are Islue gram <br />Junegrass and native bluegrass. <br />Optimum ground cover is 30$. The following species era most IIke1 <br />to invade this site: Sieepygrass, ring muhly,-buffeFn-9rsss. pinq <br />Gambols oak, Rocky Mountain juniper, pinyon pine, chollar tali, <br />'rabbitbrush and New Mexico locust. <br />~A <br />-- <br />_ •3: _: L <br />~ d~.y~~ J <br />, ~~Y1 <br />.. ~.'1~'-f`. <br />