Parent Layer:
Density Metrics
Name: Early_Seral_Stage
Display Field:
Type: Raster Layer
Geometry Type: null
Description: - Metric Name: Seral Stage
- Tier: 2
- Data Vintage: 04/2023
- Unit Of Measure: Categorical 1 - 3 (seral stage), continuous variable 0-1 representing percentage of a HUC (early and late seral stage)
- Metric Definition and Relevance: The seral stages are categories that represent the developmental progression of forest ecosystems from initial establishment or following a stand replacing event (e.g., high severity fire) to a forest dominated by trees in the upper age classes for a given forest type. Late seral forests are also often characterized by multiple ages of forest trees and dead and dying trees in some form of equilibrium. Seral conditions across landscapes were highly variable prior to major European settlement in the western US. These patterns were highly attuned to dominant disturbance regimes and the multi-scaled variability in environmental conditions across topographic and climatic gradients. These patterns helped to reinforce fire regimes dominated by low- to moderate-severity fire across much of the region and provided for multiple habitat requirements for a wide variety of species., p, - Creation Method: The FVEG data, used in characterizing vegetation and habitat conditions for a number of metrics in this kit, contain data on tree size (, a, ). Seral stages for forested lands are binned into one of three categories of tree size (Early, Mid, Late) and those are defined by tree diameter, per the CWHR system., p, p, p
Service Item Id: 4b948257d9be47ffb335528ab78ae5fd
Copyright Text: FVEG 2023
--CALFIRE, CDFW, LANDFIRE, California Forest Observatory (SALO), USDA Forest Service
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