. Habitat characteristics of the Silver Lake Mule Deer Range. Botany Oregon Lake County Ecology; Mule deer Oregon. Artemisia arbuscula/ Danthonia unispicata Ecosystem Physical Description Site. — Site characteristics for this community are described under the Artemisia arbuscula/Festuca idahoensis unit. Vegetation. — Artemisia arbuscula averages 13 percent of the composi- tion here, half as much as in the preceding unit. Five grasses occur in this community, two of which make up more than half the composition, and three of which occur frequently but in small amounts. Danthonia unispicata is do
. Habitat characteristics of the Silver Lake Mule Deer Range. Botany Oregon Lake County Ecology; Mule deer Oregon. Artemisia arbuscula/ Danthonia unispicata Ecosystem Physical Description Site. — Site characteristics for this community are described under the Artemisia arbuscula/Festuca idahoensis unit. Vegetation. — Artemisia arbuscula averages 13 percent of the composi- tion here, half as much as in the preceding unit. Five grasses occur in this community, two of which make up more than half the composition, and three of which occur frequently but in small amounts. Danthonia unispicata is dominant with 28-percent composition and 100-percent frequency, and Poa sandbergii is a close second with 23-percent composition and 100-percent frequency. Site conditions vary so that occasionally these two species do change places with each other in dominance. Sitanion hystrix, Koeleria cristata, and Stipa thurberiana com- plete the list of grasses. Perennial forbs account for a much larger part of the composition here (25 percent) than in any other community sampled. Antennaria dimorpha, with 17 percent, exceeds all other forbs combined. Erigeron bloomeri, Lomatium triternatum, L. nudicaule, and Sedum stenopetalum are widely distributed. Polimonium micranthum and Gayophytum lanatum are the most common annuals. Soils. — This is a poorly drained, shallow, stony loam with 36 percent of the surface covered by rock and 27 percent bare. The solum contains approximately 60-percent stone by volume. Root concentration is in the upper 7 inches with roots common to 11 inches. Solum development is in mixed aeolian and illuvial material derived primarily from basalt. A repre- sentative profile is: All 0-3 inches. Dark brown ( YR 3/2) moist; pinkish gray ( YR 6/2) dry; loam; strong fine platy structure, slightly hard; slightly sticky and slightly plastic; abundant very fine and fine roots; medi- um acid reaction (pH ); angular cobbles 60 percent of the volume; clear, smooth b
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Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, bookleafnumber97
