qtot: Sap flux scaling

In berdaniera/sapflux: Tree sap flux

Description

This function generates predictions of whole tree sap flow based on sap flux density observations.

Usage

qtot(v, a = 0, b, woodType = c("Tracheid", "Diffuse-porous", "Ring-porous"),
  uncertainty = FALSE, nboot = 5000, treeRadius, sapRadius = NULL)

Arguments

v	sap flux density observations (g / m^2 / time)
a	distance from cambium (in m) for outer end of sap flux probe (default = 0)
b	distance from cambium (in m) for inner end of sap flux probe
woodType	xylem type for radial profile selection
uncertainty	estimate with uncertainty (TRUE) or use mean parameters (FALSE, default)
nboot	number of draws from posterior distribution to use for prediction
treeRadius	tree radius minus bark (in m)
sapRadius	sapwood depth (in m) (optional)

Value

The integral of sap flux density throughout a tree trunk. Output is a matrix of predictions (number of observations x number of bootstrap samples). If "uncertainty" is FALSE, returns a vector of mean values.

Examples

qtot(egtree, 0, 0.02, "Ring-porous", FALSE, 1, 0.0255, NULL)

berdaniera/sapflux documentation built on May 12, 2019, 3:04 p.m.