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Acer negundo - Alnus incana ssp. tenuifolia Forest | Western Ecology Working Group of...
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Name: Acer negundo - Alnus incana ssp. tenuifolia Forest
Reference: Western Ecology Working Group of...
Description: This association is found in the mountainous regions of northern New Mexico in the Rio Grande and Pecos River watersheds. It occurs in lower montane regions, typically in the riparian zone of canyon floors. Elevations range between 1970 and 2160 m (6470-7100 feet). Stands occur on alluvial terraces and bars adjacent to perennial stream channels with gradients up to 5%. Soils include moist Entisols (Typic Fluvaquents and Oxyaquic Udifluvents) that are shallow and have a sandy to loamy layer over a gravelly-cobbly layer, or loamy Mollisols derived from dacite and rhyolitic alluvium. The ground surface is characterized by shrubs rooted among rhizomatous grasses, exposed gravels and soil-intermixed litter patches. The community is at least partially flooded every other year or completely inundated, on average, every four years. Flood debris is often evident near the banks as driftlines or larger debris piles. This riparian forest is characterized by a closed canopy (80-95%) dominated by <i>Acer negundo</i>. <i>Alnus incana ssp. tenuifolia</i> may be present in the subcanopy; other tree species are uncommon or absent. Shrubs may vary from poorly represented to abundant, with <i>Alnus incana ssp. tenuifolia</i> the most abundant. Occasionally <i>Salix irrorata</i> and a variety of other shrubs may be present. The herbaceous layer is also very diverse but variable, with over 70 grasses and forbs reported for the type. 
Accession Code: VB.CC.32104.CEGL005940
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: association
  • This Community's Children: [none]
Names:   UID: ELEMENT_GLOBAL.2.737507 NatureServe ExplorerNatureServe Explorer logo
  Translated: Box-elder - Thinleaf Alder Forest
  Scientific: Acer negundo - Alnus incana ssp. tenuifolia Forest
  Code: CEGL005940