ERDICM: Effective Rooting Zone depth

In GSIF: Global Soil Information Facilities

Description

Derive Effective Rooting Zone depth i.e. an effective depth suitable for plant growth. Usually minimum depth of soil out of three standard rooting depths: limiting soil properties, depth to water-stagnating layer and depth to bedrock.

Usage

ERDICM(UHDICM, LHDICM, minimum.LRI, DRAINFAO, BDRICM, 
    threshold.LRI=20, srd=150, drain.depths, smooth.LRI=TRUE)

Arguments

UHDICM	numeric; upper horizon depth in cm
LHDICM	numeric; lower horizon depth in cm
minimum.LRI	numeric; minimum Limiting Rootability index
DRAINFAO	factor; FAO drainage class e.g. "V", "P", "I", "M", "W", "S", "E"
BDRICM	numeric; depth to bedrock in cm
threshold.LRI	numeric; treshold index for LRI
srd	numeric; maximum depth of interest
drain.depths	data.frame; estimate effective rooting depth per drainage class (DRAINFAO)
smooth.LRI	logical; specify whether to smooth LRI values using splines

Value

Returns a vector of effective rooting depth in cm.

Author(s)

Johan Leenaars, Maria Ruiperez Gonzalez and Tomislav Hengl

See Also

LRI

GSIF documentation built on May 2, 2019, 5:44 p.m.