biomass.Norway: Biomass functions for Norway
In cantonfe/sitreeE: Sitree Extensions

Description Usage Arguments Details Value Author(s) References See Also Examples

Implements the currently used functions to estimate biomass in Norway.

1	biomass.Norway(tr, this.period)

`tr`	A trList class object.
`this.period`	The period for which to calculate biomass.

If tr is of class trListDead biomass is estimated for the last measurement. It uses biomass.spruce.M1988, biomass.pine.M1988, biomass.birch.S2014, biomass.birch.M1988 (to add the stump to aboveground biomass and remove it from belowground biomass from biomass.birch.S2014 equations).

Returns a list

`biomass.kg`	A data.frame with total biomass, biomass aboveground, biomass belowground, all in kg
`biomass.kg.components`	A data.frame with biomass components (see `biomass.birch.M1988`) in kg

Clara Anton Fernandez caf@nibio.no

Marklund, L. G. 1988. “Biomassafunktioner för tall, gran och björk i Sverige (Biomass functions for pine, spruce and birch in Sweden).” Report 45. Umeå, Sweden: Swedish University of Agricultural Sciences. Department of Forest Survey.

Petersson, Hans, and Göran Ståhl. 2006. “Functions for Below-Ground Biomass of Pinus Sylvestris, Picea Abies, Betula Pendula and Betula Pubescens in Sweden.” Scandinavian Journal of Forest Research 21 (S7): 84–93. doi:10.1080/14004080500486864. Smith, Aaron, Aksel Granhus, and Rasmus Astrup. 2016. “Functions for Estimating Belowground and Whole Tree Biomass of Birch in Norway.” Scandinavian Journal of Forest Research 31 (6): 568–82. Smith, Aaron, Aksel Granhus, Rasmus Astrup, Ole Martin Bollandsås, and Hans Petersson. 2014. “Functions for Estimating Aboveground Biomass of Birch in Norway.” Scandinavian Journal of Forest Research 29 (6): 565–78.

biomass.birch.S2014, biomass.birch.M1988, biomass.pine.M1988, biomass.spruce.M1988

res <- sitree (tree.df   = tr,
                 stand.df  = fl,
                 functions = list(
                     fn.growth     = 'grow.dbhinc.hgtinc',
                     fn.mort       = 'mort.B2007',
                     fn.recr       = 'recr.BBG2008',
                     fn.management = 'management.prob',
                     fn.tree.removal = 'mng.tree.removal',
                     fn.modif      = NULL, 
                     fn.prep.common.vars = 'prep.common.vars.fun'
                 ),
                 n.periods = 5,
                 period.length = 5,
                 mng.options = NA,
                 print.comments = FALSE,
                 fn.dbh.inc = "dbhi.BN2009",
                 fn.hgt.inc =  "height.korf", 
                 species.spruce = c(1, 2, 3),
                 species.pine = c(10, 11, 20, 21, 29),
                 species.harw = c(30, 31),
                 fun.final.felling = "harv.prob",
                 fun.thinning      = "thin.prob",
                 'BN2009',
                 'BBG2008', 'SBA.m2.ha', 'spp','pr.spru.ba', 'QMD.cm',
                 per.vol.harv = 0.83
                 )
biomass.Norway (tr = res$live,
                this.period = "t1")