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A.140 | EcoArt 2002
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Name: A.140
Reference: EcoArt 2002
Description: This montane forest alliance of central and southern California grows on steep to moderate slopes. Stands are found between 275 and 2400 m of elevation, and grow on slopes of all aspects. Annual precipitation varies with elevation, and ranges from 70-100 cm, with a distinct summer dry season. Precipitation is episodic, and droughts of several years duration are not uncommon. Soils that support this alliance are skeletal, rocky, and well-drained. Stands contain ~Pseudotsuga macrocarpa$ and ~Quercus chrysolepis$ as important canopy species. Other trees present may include ~Quercus kelloggii, Pinus coulteri, Pinus attenuata, Pinus sabiniana, Pinus monophylla, Umbellularia californica$, and ~Juglans californica$. In older stands the canopy tends to be two-tiered, with ~Quercus chrysolepis$ forming the subcanopy beneath the conifers. The shrub and herbaceous layers are sparse. 
Accession Code: VB.CC.1173.A140
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: I.A.8.N.c
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: PSEUDOTSUGA MACROCARPA - QUERCUS CHRYSOLEPIS FOREST ALLIANCE
  Code: A.140
  Common: Bigcone Douglas-fir - Canyon Live Oak Forest Alliance
(convergence) and Synonyms:
(undetermined) Pseudotsuga macrocarpa - Quercus chrysolepis Forest Alliance