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TapeS (version 0.13.3)

Tree Taper Curves and Sorting Based on 'TapeR'

Description

Providing new german-wide 'TapeR' Models and functions for their evaluation. Included are the most common tree species in Germany (Norway spruce, Scots pine, European larch, Douglas fir, Silver fir as well as European beech, Common/Sessile oak and Red oak). Many other species are mapped to them so that 36 tree species / groups can be processed. Single trees are defined by species code, one or multiple diameters in arbitrary measuring height and tree height. The functions then provide information on diameters along the stem, bark thickness, height of diameters, volume of the total or parts of the trunk and total and component above-ground biomass. It is also possible to calculate assortments from the taper curves. Uncertainty information is provided for diameter, volume and component biomass estimation.

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Version

Install

install.packages('TapeS')

Monthly Downloads

216

Version

0.13.3

License

BSD_2_clause + file LICENSE

Maintainer

Christian Vonderach

Last Published

February 14th, 2025

Functions in TapeS (0.13.3)

Double Bark Thickness

check_monotonicity

monotonicity check for taper curve

height estimation

calculate VCOV-Matrix for volume segments

Plot taper curve for an object of class tprTrees

Functions to calculate double bark thickness for given diameter at height Hx

Functions to calculate assortments for given tree

Component biomass functions

Component biomass functions

constructor for class parSort

An S4 class to represent the parameters for tree assorting.

Get BDAT species code or transform it to a name.

Function to extract diameters from Taper curve using Rcpp

Estimate height for given diameter w/ or w/o bark

An S4 class to represent one or multiple trees.

Functions to calculate stem volume from taper curve

constructor for class tprTrees

setTapeSoptions

Set and get options for the TapeS-package

simulating objects of class tprTrees

total aboveground and component biomass

Functions to extract diameters from Taper curve

Extract pre-defined diameter

TapeS: Tree Taper Curves and Sorting Based on 'TapeR'

E_HDxoR_HmDm_Ht.f

Find Height of diameter under bark via uniroot

parameter of bark function

estimate variance components for component biomass functions

slot accessor functions for class 'tprtrees'

estimate minimum cutting diameter

returns coefficients for Pettersen-Height model

Tariff for taper form

function for mapping the 36 tree species to several internal functions

generate and/or check validity of biomass function component names

Prediction of above-ground biomass according to NFI-functions

percentage of unusable coarse wood

tree volume information

Estimate tree height by DBH according to BWI3

coerce different data sources into class 'tprTrees'

diameter prediction E[d] for TapeR-object