Natural Resources
Conservation Service
Ecological site R043AY510ID
Cool-Mesic Aquic Loamy Flood Plains (CAST/CAREX)
Last updated: 10/15/2020
Accessed: 11/21/2024
General information
Provisional. A provisional ecological site description has undergone quality control and quality assurance review. It contains a working state and transition model and enough information to identify the ecological site.
MLRA notes
Major Land Resource Area (MLRA): 043A–Northern Rocky Mountains
Major Land Resource Area (MLRA): 043A–Northern Rocky Mountains
Description of MLRAs can be found in: United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land Resource Regions and Major Land Resource Areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296.
LRU notes
Major land resource area (MLRA): 043A-Northern Rocky Mountains
Modal LRU – 43A03 - Columbia-Colville Valleys
This LRU is composed predominantly of glaciated valleys and foothills. The soils tend to be loamy to sandy Haploxerepts and Haploxerolls with mixed or distinct ash surfaces. Recent alluvium, till, outwash and residuum from granitic or metamorphic rock are the dominant parent materials. Soil climate is a mesic or frigid temperature regime and xeric moisture regime with average annual precipitation around 490 mm (19 inches).
Others where occurring: 44A01 Spokane-Rathdrum Outwash Plains
43A04 Selkirk Mountains
Classification relationships
This ES fits into the National Vegetation Standard’s and is most closely related to Washington State’s Natural Heritage Program’s. (Compare to previous Washington range site: R044XY601WA, WET MEADOW 16-24 PZ)
Ecological site concept
Ecological Site Concept:
This ES is found on poorly to somewhat poorly drained, loamy sites on floodplains. A water table is within 75 cm of the surface at some time during the May-Oct period. They have mesic temperatures and a plant community dominated by sedges and grasses.
Table 1. Dominant plant species
Tree |
Not specified |
---|---|
Shrub |
Not specified |
Herbaceous |
(1) Carex |
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