yield_tables {ForestElementsR}R Documentation

Yield Tables

Description

The yield table system of ForestElementsR allows easy use of yield tables that are available as an fe_yield_table object. Here, we list all yield tables that come with the current version of the package. For test purposes and as an example, the Scots Pine table by Wiedemann (1943) is provided as a raw data frame (prefix "ytable_") and an fe_yield_table object (prefix "fe_ytable_"). The raw data frame can be transformed into a fe_yield_table object with the function fe_yield_table (see the example there). When we refer to Schober's yield table collection below, we mean Schober (1975). Many of the yield tables listed were implemented in the version published in what we refer to as the Hilfstafeln edited by the Bavarian Forest Administration. Hereby, we mean, more precisely, BayMinELF (1990), and BayMinELF (2018). The yield table collection in both editions is almost identical, and represented in ForestElementsR (including error corrections beyond the 2018 edition). Only the yield table by Kenk and Hradetzky for Douglas fir that is new in the 2018 hasn't been imported here, yet.

The following yield tables are currently implemented (alphabetically ordered by author names):

Usage

fe_ytable_spruce_assmann_franz_mean_yield_level_1963

fe_ytable_poplar_blume_1949

fe_ytable_redoak_bauer_1955

fe_ytable_beech_gehrhardt_moderate_1908

fe_ytable_spruce_gehrhardt_moderate_1921

fe_ytable_pine_gehrhardt_moderate_1921

fe_ytable_spruce_guttenberg_1915

fe_ytable_silver_fir_hausser_moderate_1956

fe_ytable_oak_juettner_moderate_1955

fe_ytable_blackalder_mitscherlich_heavy_1945

fe_ytable_larch_schober_moderate_1946

fe_ytable_japanlarch_schober_moderate_1953

fe_ytable_douglas_schober_moderate_1956

fe_ytable_birch_schwappach_1903_29

fe_ytable_beech_wiedemann_moderate_1931

fe_ytable_spruce_wiedemann_moderate_1936_42

fe_ytable_pine_wiedemann_moderate_1943

ytable_pine_wiedemann_moderate_1943_raw

fe_ytable_ash_wimmenauer_1919_29

fe_ytable_spruce_vanselow_1951

Format

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

An object of class tbl_df (inherits from tbl, data.frame) with 237 rows and 16 columns.

An object of class fe_yield_table of length 7.

An object of class fe_yield_table of length 7.

References

BayMinELF (1990). Hilfstafeln für die Forsteinrichtung. Zusammengestellt für den Gebrauch in der Bayerischen Staatsforstverwaltung. Bayerisches Staatsministerium für Ernährung Landwirtschaft und Forsten.

BayMinELF (2018). Hilfstafeln für die Forsteinrichtung. Bayerisches Staatsministerium für Ernährung Landwirtschaft und Forsten.

Schober R (1975). Ertragstafeln wichtiger Baumarten bei verschiedener Durchforstung. J. D. Sauerländer's Verlag, Frankfurt a. M.


[Package ForestElementsR version 2.1.0 Index]