Basal area of red alder trees within watersheds draining to the Puget Sound and the Strait of Juan de Fuca, Washington, 2005 – 2017

This data release contains the basal area of red alder trees (Alnus rubra) within watersheds draining to the Puget Sound and the Strait of Juan de Fuca, Washington. The data, which cover the years 2005 through 2017, were used as input to a seasonal Spatially Referenced Regression On Watershed attributes (SPARROW) total nitrogen model that were used to assess nutrient loadings to Puget Sound and the Strait of Juan de Fuca. The values constitute the total red alder basal area for each incremental catchment represented in the SPARROW models.

[
  "010:12"
]

[
  "geospatial"
]