Calculate global root production and root turnover from temporal comparison

Usage

turnover_tc(
  im.t1,
  im.t2,
  method = "kimura",
  unit = "cm",
  dpi = 300,
  select.layer = 2
)

Arguments

im.t1: SpatRaster object for timepoint 1
im.t2: SpatRaster object for timepoint 2
method: Analysis method: "kimura" or "rootpx"
unit: Unit of root length measurement (only for method = "kimura"). Default: "cm"
dpi: Image resolution (only for method = "kimura"). Default: 300
select.layer: Integer specifying the layer to use in both timesteps if img is a multi-layer `SpatRaster`. Defaults to 2.

Value

data.frame containing: - standingroot_t1: Standing roots at first timepoint - standingroot_t2: Standing roots at second timepoint - production: Root production between timepoints - newroot - newroot

Examples

  data(skl_Oulanka2023_Session01_T067)
  data(skl_Oulanka2023_Session03_T067)
  time1 <- terra::rast(skl_Oulanka2023_Session01_T067)
  time2 <- terra::rast(skl_Oulanka2023_Session03_T067)
  turnover.values <- turnover_tc(
    im.t1 = time1,
    im.t2 = time2,
    method = "kimura")