make_landscape: Landscape initialisation

In resevol: Simulate Agricultural Production and Evolution of Pesticide Resistance

Landscape initialisation

Description

Initialise the landscape for a simulation. This should not normally need to be done explicitly with this function because it is run inside of the run_farm_sim function, but this gives the option to generate a landscape without actually running a simulation. All landscapes are produced as three dimensional arrays with varying numbers of rows and columns that determine landscape size, and a depth of 21 layers. The top layer defines which cells belong to which farm, while the remaining layers define how much of a given crop is on the landscape cell (2-11) or how much pesticide has been applied to it (12-21). An arbitrary number of farms are placed in a blocked design on the landscape using a shortest split-line algorithm, which attempts to make farm size as even as possible. Specifying public land is possible, and adds sections of land that are not farms, but this is not recommended.

Usage

make_landscape(
  terrain = NA,
  rows = NA,
  cols = NA,
  depth = 21,
  farms = 4,
  public_land = 0,
  farm_var = 0
)

Arguments

terrain	a layer of terrain that can be added to specify farm position
rows	The dimension of the other side of the landscape (e.g., Longitude)
cols	The dimension of one side of the landscape (e.g., Latitude)
depth	The number of layers in the 3D landscape
farms	The number of farms on the landscape
public_land	The proportion of landscape cells that are not farmland
farm_var	Does the land distribution vary among farms (>=0, <1)

Value

the_land A cols by rows landscape with randomly distributed cell types

Examples

land <- make_landscape(rows = 10, cols = 10, depth = 2, farms = 4)

resevol documentation built on July 13, 2022, 5:06 p.m.