Carbon cycle and natural vegetation/Description: Difference between revisions

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{{ComponentDescriptionTemplate
{{ComponentDescriptionTemplate
|Description====Vegetation types===
|Description====Vegetation types===
The Natural vegetation and carbon cycle model is part of the [[Vegetation, hydrology and agriculture|Vegetation, hydrology and agriculture component (IMAGE LPJml)]]. [[LPJml model]] is a Dynamic Global Vegetation Model ([[hasAcronym::DGVM]]), initially developed to assess the role of the terrestrial biosphere in the global carbon cycle (Prentice et al., 2007). DGVMs simulate vegetation distribution and dynamics, using the concept of multiple plant functional types ([[hasAcronym::PFT]]s) that are differentiated according to their bioclimatic (e.g. temperature requirement), physiological, morphological, and phenological (e.g. growing season) attributes, and that compete for resources (i.e. light and water). In order to aggregate the vast diversity of plant species in the world, with respect to the most important differences for the carbon cycle, Natural vegetation and carbon cycle model distinguishes [[Plant functional types|nine PFTs]]. Plant dynamics are computed for each PFT present in a grid cell. Since IMAGE uses the concept of biomes (see the [[Land cover types|Natural vegetation types]]), combinations of PFTs in an area/grid cell are translated into a certain biome type (see figure on the right: Biome classification). In the IMAGE framework there is one modification to LPJml, namely the biome ‘ice’,  for biomes initially defined as ‘arctic tundra’, and with an  average annual temperature of < -2 oC and an annual net primary production (NPP) of < 1 Pg.yr-1. All carbon pools and fluxes in this biome are set to zero.
The Natural vegetation and carbon cycle model is part of the [[Vegetation, hydrology and agriculture|Vegetation, hydrology and agriculture component]] (IMAGE LPJml). [[LPJml model]] is a Dynamic Global Vegetation Model ([[hasAcronym::DGVM]]), initially developed to assess the role of the terrestrial biosphere in the global carbon cycle (Prentice et al., 2007). DGVMs simulate vegetation distribution and dynamics, using the concept of multiple plant functional types ([[hasAcronym::PFT]]s) that are differentiated according to their bioclimatic (e.g. temperature requirement), physiological, morphological, and phenological (e.g. growing season) attributes, and that compete for resources (i.e. light and water). In order to aggregate the vast diversity of plant species in the world, with respect to the most important differences for the carbon cycle, Natural vegetation and carbon cycle model distinguishes [[Plant functional types|nine PFTs]]. Plant dynamics are computed for each PFT present in a grid cell. Since IMAGE uses the concept of biomes (see the [[Land cover types|Natural vegetation types]]), combinations of PFTs in an area/grid cell are translated into a certain biome type (see figure on the right: Biome classification). In the IMAGE framework there is one modification to LPJml, namely the biome ‘ice’,  for biomes initially defined as ‘arctic tundra’, and with an  average annual temperature of < -2 oC and an annual net primary production (NPP) of < 1 Pg.yr-1. All carbon pools and fluxes in this biome are set to zero.
{{FigureRightTemplate|Biome classification flowchart NVCC‎}}
{{FigureRightTemplate|Biome classification flowchart NVCC‎}}


Revision as of 12:15, 7 January 2014

Link to framework components overview

Parts of Carbon cycle and natural vegetation/Description

  1. Introduction page
  2. Model description
  3. Policy issues
  4. Data, uncertainty and limitations
  5. Overview of references
Component is implemented in:
Components:
Related IMAGE components
Models/Databases
Key publications
References
Carbon cycle and natural vegetation module of LPJmL, in IMAGE 3.0
Flowchart Carbon cycle and natural vegetation. See also the Input/Output Table on the introduction page.

Model description of Carbon cycle and natural vegetation

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