PrimSecdOtherLand

Calculates share of primary and secondary non-forest vegetation for different aggregation levels based on gridded magpie output and initial shares of primary and secondary non-forest vegetation.

Usage

PrimSecdOtherLand(
  x,
  ini_file,
  ini_year = "y1995",
  file = NULL,
  level = "grid",
  unit = "Mha"
)

Arguments

x

Time series of land pools (model output) containing only one aggregated class for other land. Can be a file or magclass object.

ini_file

Initialisation file for primary and secondary other land (e.g. based on 1995 MAgPIE land-use initialisation values). Must have the same spatial resolution as x.

ini_year

Reference year for estimating primary and secondary other land shares, must be included in ini_file.

file

a file name the output should be written to using write.magpie

level

Level of regional aggregation; "reg" (regional), "glo" (global), "regglo" (regional and global) or any other aggregation level defined in superAggregate. The unit of output for the cases above is Mha. If level "grid" is specified the unit of output can be chosen between "share" and "Mha".

unit

"Mha" or "share". Defines the unit of the gridded output, see also level.

Value

x including land area for primary and secondary non-forested vegetation in MAgPIE (other land) as MAgPIE object; either as unit of area (Mha) or as fraction of total land per grid cell (share).

Author

Patrick v. Jeetze, Kristine Karstens

Examples

if (FALSE) { # \dontrun{
x <- "./cell.land_0.5.nc"
land <- PrimSecdOtherLand(x)

# direct use of disaggregation output
land <- PrimSecdOtherLand(land_hr)
} # }