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TapeS (version 0.12.1)

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. For diameter and volume estimation, uncertainty information is given.

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Version

Install

install.packages('TapeS')

Monthly Downloads

337

Version

0.12.1

License

BSD_2_clause + file LICENSE

Maintainer

Christian Vonderach

Last Published

March 25th, 2023

Functions in TapeS (0.12.1)

Double Bark Thickness

Data: Function Parameters to estimate cutting diameter

coerce different data sources into class 'tprTrees'

simulating objects of class tprTrees

Component biomass functions

diameter prediction E[d] for TapeR-object

Functions to calculate assortments for given tree

An S4 class to represent the parameters for tree assorting.

percentage of unusable coarse wood

height estimation

constructor for class parSort

Prediction of above-ground biomass according to NFI-functions

Plot taper curve for an object of class tprTrees

setTapeSoptions

Set and get options for the TapeS-package

An S4 class to represent one or multiple trees.

constructor for class tprTrees

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

Get BDAT species code or transform it to a name.

Data: Percentage of unusable wood in Beech and Oak in Germany

Functions to calculate stem volume from taper curve

Function to extract diameters from Taper curve using Rcpp

Functions to extract diameters from Taper curve

total aboveground and component biomass

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

Data: Volume (cbm over bark) according to FAO definition for trees with dbh less than 7cm

returns coefficients for Pettersen-Height model

parameter of bark function

function for mapping the 36 tree species to several internal functions

Data: Taper Curve models fit using R-Package TapeR

estimate minimum cutting diameter

Tariff for taper form

E_HDxoR_HmDm_Ht.f

Find Height of diameter under bark via uniroot

slot accessor functions for class 'tprtrees'

Extract pre-defined diameter

TapeS: New taper functions for most common tree species in Germany and evaluating functions.

check_monotonicity

monotonicity check for taper curve

Estimate tree height by DBH according to BWI3

tree volume information

calculate VCOV-Matrix for volume segments

Data: Function Parameters to estimate double bark thickness

Data: Crown wood expansion models to include branch coarse wood