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The Forest Vegetation Simulator (FVS) is a forest growth and yield model developed by the United States Forest Service and is used by natural resource managers and researchers. FVS is calibrated for specific geographic areas and uses a host of simulation models to forecast forest composition and structure.
DGVMs generally combine biogeochemistry, biogeography, and disturbance submodels.Disturbance is often limited to wildfires, but in principle could include any of: forest/land management decisions, windthrow, insect damage, ozone damage etc. DGVMs usually "spin up" their simulations from bare ground to equilibrium vegetation (e.g. climax community) to establish realistic initial values for ...
Download QR code; Print/export ... Pages in category "Forest models" The following 3 pages are in this category, out of 3 total. ... Forest Vegetation Simulator This ...
The BEC approach classifies vegetation in a hierarchy (see Figure 2) that presents vegetation communities at various levels of generalization. At upper levels of the hierarchy, the communities may have the same dominant tree species and occur in the same broad climate, for example, western redcedar - western hemlock forests of maritime climates ...
Europe: SynBioSys Europe information system of distributed European TURBOVEG databases relating to plant species, vegetation and landscape data administered by the European Vegetation Survey. When completed this will contain 30 national species lists. [12] France: Sophy, computerized phytosociological information (vegetation relevés). [13]
The model considers transient changes in vegetation composition and structure in response to environmental change and is, therefore, classified as a Dynamic Global Vegetation Model [2] This new version of IBIS has improved representations of land surface physics, plant physiology, canopy phenology, plant functional type (PFT) differences, and carbon allocation.
It is measured as the mean of all annual temperatures, with all temperatures below freezing and above 30 °C adjusted to 0 °C, [4] as most plants are dormant at these temperatures. Holdridge's system uses biotemperature first, rather than the temperate latitude bias of Merriam 's life zones, and does not primarily consider elevation directly.
Warea carteri is an annual herb, 0.2 to 1.5 m tall with erect green stems. The plants usually have many slender, ascending branches forming an open, rounded crown. The leaves lack stipules and are arranged alternately on the stem. Lower leaves are lost by the time the plant flowers. Leaf size and shape varies with age and position on the plant.