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CEGL005993 Populus deltoides ssp. wislizeni / Salix irrorata Flooded Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Rio Grande Cottonwood / Dewystem Willow Flooded Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This lower-montane riparian association is known from small tributaries of the Rio Grande in northern New Mexico. Also, within Bandelier National Monument, this association occurs along a canyon bottom with low solar exposure. It occurs on narrow valley bottom alluvial sediments with low to moderate gradients. Flooding is estimated to occur on a 10-year return interval or less. Elevations range from 1525 to 1900 m (5000-6250 feet). Stands occur on alluvial terraces and bars adjacent to perennial stream channels with gradients less than 10%. The substrates are alluvial deposits derived from basalt and andesite volcanics. The ground surface is characterized by shrubs rooted among rhizomatous grasses, exposed gravels and soil-intermixed litter patches. Stands are dominated by Populus deltoides ssp. wislizeni with moderately open canopies along with scattered Acer negundo, Juniperus monosperma, and Juniperus scopulorum. The undergrowth is characterized by thickets of Salix irrorata and a diverse complement of grasses and forbs. As a keystone species, the reproduction of Populus deltoides after flooding (and sufficient subsequent base flows) is critical to the sustainability of this community.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is tentative, known only from two plots in northern New Mexico taken a decade apart. It is an unusual association, consisting of a lower-elevation, valley-floor cottonwood with a lower-montane willow species.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Stands are dominated by Populus deltoides ssp. wislizeni with moderately open canopies along with scattered Acer negundo, Juniperus monosperma, and Juniperus scopulorum. The undergrowth is characterized by thickets of Salix irrorata and a diverse complement of grasses and forbs. As a keystone species, the reproduction of Populus deltoides after flooding (and sufficient subsequent base flows) is critical to the sustainability of this community.
Dynamics: No Data Available
Environmental Description: This lower-montane riparian association is known from small tributaries of the Rio Grande in northern New Mexico. Also, within Bandelier National Monument, this association occurs along a canyon bottom with low solar exposure. It occurs on narrow valley bottom alluvial sediments with low to moderate gradients. Flooding is estimated to occur on a 10-year return interval or less. Elevations range from 1525 to 1900 m (5000-6250 feet). Stands occur on alluvial terraces and bars adjacent to perennial stream channels with gradients less than 10%. The substrates are alluvial deposits derived from basalt and andesite volcanics. The ground surface is characterized by shrubs rooted among rhizomatous grasses, exposed gravels and soil-intermixed litter patches.
Geographic Range: This association is known only from northern New Mexico but may occur farther west into Arizona. It is not expected to occur in Colorado.
Nations: US
States/Provinces: AZ?, NM
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.738786
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G2G3
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.3 Temperate Flooded & Swamp Forest Formation | F026 | 1.B.3 |
| Division | 1.B.3.Nd Western North American Interior Flooded Forest Division | D013 | 1.B.3.Nd |
| Macrogroup | 1.B.3.Nd.2 Interior Warm & Cool Desert Riparian Forest Macrogroup | M036 | 1.B.3.Nd.2 |
| Group | 1.B.3.Nd.2.b Western Interior Riparian Forest & Woodland Group | G797 | 1.B.3.Nd.2.b |
| Alliance | A3802 Rio Grande Cottonwood - Plains Cottonwood Riparian Forest Alliance | A3802 | 1.B.3.Nd.2.b |
| Association | CEGL005993 Rio Grande Cottonwood / Dewystem Willow Flooded Forest | CEGL005993 | 1.B.3.Nd.2.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- Muldavin, E., A. Kennedy, C. Jackson, P. Neville, T. Neville, K. Schulz, and M. Reid. 2011b. Vegetation classification and map: Bandelier National Monument. Natural Resource Technical Report NPS/SCPN/NRTR--2011/438. National Park Service, Fort Collins, CO.
- NHNM [Natural Heritage New Mexico]. No date. Unpublished data on file. Natural Heritage New Mexico, University of New Mexico, Albuquerque.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.