Hagglund_Lundmark_1979_Site_Index_Prediction: Estimate Site Index H100 for Spruce or Pine in Sweden by...

In Silviculturalist/forester: Forest Science and Forestry

Estimate Site Index H100 for Spruce or Pine in Sweden by stand factors.

Description

Estimate Site Index H100 for Spruce or Pine in Sweden by stand factors.

Usage

Hagglund_Lundmark_1979_Site_Index_Prediction(
  species,
  vegetation,
  groundLayer,
  latitude,
  longitude,
  altitude,
  aspectMain = NA,
  inclinePercent = 0,
  soilMoisture,
  soilTexture,
  soilDepth,
  lateralWater,
  ditched,
  climateCode = NA,
  close2Coast = FALSE,
  LimesNorrlandicus = FALSE
)

Arguments

species	One of "Picea abies" (default) or "Pinus sylvestris".
vegetation	integer 1-18 see [forester::Sweden_vegetation_types(layer="field)]
groundLayer	integer 1-6 see [forester::Sweden_vegetation_types(layer="ground")]
latitude	decimal WGS84.
longitude	decimal WGS84.
altitude	Meters above sea level.
aspectMain	Main aspect of the site. One of: NA (default), "North", "East,"South","West".
inclinePercent	Incline of slope, in percent. Default == 0.
soilMoisture	integer 1-5 see [forester::Sweden_soil_types(type="moisture")]
soilTexture	integer 1-9 see [forester::Sweden_soil_types(type="texture")]
soilDepth	integer 1-4 see [forester::Sweden_soil_types(type="depth")]
lateralWater	integer 1-3 see [forester::Sweden_soil_types(type="water")]
ditched	boolean TRUE/FALSE (default) if plot affected by ditching.
climateCode	One of: NA (default),"M1","M2","K1","K2","K3". see [forester::Angstrom_1958_local_climate_Sweden()]
close2Coast	boolean TRUE/FALSE (default) if plot is closer to coast than 50km. e.g. [forester::coast_distance()]
LimesNorrlandicus	boolean TRUE/FALSE (default) if plot is north of Sernanders Limes Norrlandicus (used for Peat soils only.)

Details

Uses corrected functions from appendix II in Hägglund & Lundmark 1979, except for when used on peat soils, in which case functions f. 8.1 & f. 8.2. pages 138-139 from Hägglund & Lundmark (1977) is used.

Value

Site Index H100 (meters). Will return NA & issue a warning message if no method was found.

Source

Corrected functions from Appendix II for estimation of site index by site factors according to Hägglund and Lundmark (1977), in Hägglund, B. (1979) Ett system för bonitering av skogsmark - analys, kontroll och diskussion inför praktisk tillämpning. Rapport 14, Projekt HUGIN. Skogsvetenskapliga fakulteten, Sveriges Lantbruksuniversitet. Umeå. Sweden.

Hägglund, B., Lundmark, J-E. (1977) Skattning av höjdboniteten med ståndortsfaktorer: Tall och gran i Sverige. Research Notes nr. 28. Dept. Forest Ecology & Forest Soils. Royal College of Forestry. Stockholm. Sweden.

Silviculturalist/forester documentation built on April 20, 2024, 2:13 p.m.