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词条 Plant functional type
释义

  1. See also

  2. References

Plant functional types (PFTs) is a system used by climatologists to classify plants according to their physical, phylogenetic and phenological characteristics as part of an overall effort to develop a vegetation model for use in land use studies and climate models.[1] PFTs provide a finer level of modeling than biomes,[1] which represent gross areas such as desert, savannah, deciduous forest. In creating a PFT model, areas as small as 1 km2 are modeled by defining the predominant plant type for that area, interpreted from satellite data[1] or other means. For each plant functional type, a number of key parameters are defined, such as fecundity, competitiveness, resorption (rate at which plant decays and returns nutrients to the soil after death), etc.; the value of each parameter is determined or inferred from observable characteristics such as plant height, leaf area, etc.[2]Climatologists and ecologists struggle to determine which minimal set of plant characteristics best model the actual responses of the biosphere in response to climate changes.[2]

See also

  • Ecotone

References

1. ^1 2 {{cite web |title=Plant Functional Types |author1=Terrestrial Sciences Section |author2=Climate and Global Dynamics Division |publisher=National Center for Atmospheric Research |url=http://www.cgd.ucar.edu/tss/clm/pfts/index.html |work=Community Land Model}}
2. ^1 {{cite book |title=Terrestrial Ecosystems in a Changing World |chapter=Plant Functional Types: Are We Getting Any Closer to the Holy Grail? |first1=Sandra|last1=Lavorel |first2=Sandra|last2=Díaz |first3=J. Hans C.|last3=Cornelissen |first4=Eric|last4=Garnier |first5=Sandy P.|last5=Harrison |first6=Sue|last6=McIntyre |first7=Juli G.|last7=Pausas |first8=Natalia|last8=Pérez-Harguindeguy |first9=Catherine|last9=Roumet |first10=Carlos|last10=Urcelay |editor1-last=Canadell|editor1-first=JG |editor2-last=Pataki|editor2-first=D |editor3-last=Pitelka|editor3-first=L |year=2007 |series=The IGBP Series |publisher=Springer-Verlag |location=Berlin |isbn=9783540327295 |url=http://www.uv.es/jgpausas/papers/Lavorel2007InCanadell.pdf}}

1 : Plant taxonomy
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