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More Stratum Method Name Reference Stratum Method Description ? Plots
Details Alvar Strata (New York)   Strata are defined by growth form and height 85
Details CA Native Plant Society (CNPS)   Strata are used in two different ways in this method. Strata are characterized at the plot level using different strata than those used to note individual species cover within strata 6679
Details Carolina Vegetation Survey CVS Protocol Stratum heights are constructed to reflect the vegetation of the plot. Foliage is then determined to belong to a stratum based only on height of the foliage, not the individual. Lifeform is not considered. An individual's foliage may be broken into different strata. 2639
Details CNPS/CDFW RA v. 2005 Delta Report 2007 Record an average height value for overstory conifer tree, overstory hardwood tree, understory tree or tall shrub, other shrubs, and herbaceous strata 2006
Details CNPS/CDFW v.2010   Total % foliar cover for non-vascular plants and lichens, vascular plants, conifers, hardwoods, regenerating tree (tree seedlings and saplings), shrub and herbaceous 1340
Details CNPS RA 2007 CNPS RA 2007 Record an average height value for overstory conifer tree, overstory hardwood tree, understory tree or tall shrub, other shrubs, and herbaceous strata 0
Details CVS Modules   A stratum method that treats modules as strata for ease of database management (rather than subplots) 36
Details Duke Forest Strata 1977     0
Details MN NHP Method     788
Details National Park Service NPS Methodology Strata are defined based on both lifeform and height. An individual's foliage belongs to one stratum only, as determined by the individual's height. 27488

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