writekeyfile: A Function to Write FVS keyfiles
In wrightmicahc/keyfiler: Write FVS keyfiles and the .bat files to run them

This script writes a keyfile that will run FVS using the fire and fuels extension FFE. Most arguments refer to FVS keywords. Descriptions for the keyword fields have been included if possible.

writekeyfile(STDIDENT, MGMTID = "None", STDINFO = NULL, NUMCYCLE = 10,
  TIMEINT = c(0, 10), DSNIN, TreeSQL, DSNOut, FFE = FALSE,
  FUELINIT = NULL, POTFTEMP = NULL, POTFWIND = NULL, POTFSEAS = NULL,
  FUELMOVE_C = NULL, FUELMOVE = c(50), POTFMOIS_S = NULL,
  POTFMOIS_M = NULL, SIMFIRE = NULL, writetables = NULL,
  writefile = FALSE, keypath = NULL)

`STDIDENT`	Stand ID number
`MGMTID`	Management/treatment ID, up to 40 characters
`STDINFO`	Stand information
`NUMCYCLE`	Integer. Number of simulation cycles, defaults to 10.
`TIMEINT`	Integer vector, length 2. time interval between simulations.
`DSNIN`	Name of input access database.
`TreeSQL`	SQL code for tree list table in DSNIN. Enter as single quoted string.
`FFE`	Logical. If TRUE, must specify the following FFE keywords: FUELINIT, POTFTEMP, POTFWIND, POTFSEAS, FUELMOVE_C, FUELMOVE, POTFMOIS_S, POTFMOIS_M, SIMFIRE
`writetables`	Character string of FVS report table keywords
`writefile`	Logical. Write output to text file?
`keypath`	File path were keyfile will be written.
`DSNOut:`	Name of output access database. Must be a preexisting access database with .accdb extension.
`FUELINIT:`	Numeric vector, length up to 12. Initializes fuel table for "hard" fuels. From the FVS documentation: field 1: Initial fuel load for the 0-1 inch class (tons/acre). This loading gets divided equally between the 0-0.25 inch class and the 0.25-1 inch class. field 2: Initial fuel load for the 1-3 inch class (tons/acre). field 3: Initial fuel load for the 3-6 inch class (tons/acre). field 4: Initial fuel load for the 6-12 inch class (tons/acre). field 5: Initial fuel load for the 12-20 inch class (tons/acre). field 6: Initial fuel load for litter (tons/acre). field 7: Initial fuel load for duff (tons/acre). field 8: Initial fuel load for the 0-0.25 inch class (tons/acre). field 9: Initial fuel load for the 0.25-1 inch class (tons/acre). field 10: Initial fuel load for the 20-35 inch class (tons/acre). field 11: Initial fuel load for the 35-50 inch class (tons/acre). field 12: Initial fuel load for the ≥ 50 inch class (tons/acre).
`POTFTEMP:`	Numeric vector, length 2. Temperature for severe [1] and moderate [2] fires
`POTFWIND:`	Numeric vector, length 2. 20ft wind speed for severe [1] and moderate [2] fires
`POTFSEAS:`	Numeric vector, length 2. Season for severe [1] and moderate [2] fires
`FUELMOVE_C:`	Classes of fuels to remove, integers 1:11. 0=none, 1=<0.25 inch, 2=0.25-1 inch, 3=1-3 inch, 4=3-6 inch, 5=6-12 inch, 6=12-20 inch, 7=20-35 inch, 8=35-50 inch, 9=≥50 inch, 10=litter, 11=duff
`FUELMOVE:`	Proportion of fuel to remove. Needs to be included for every fuel class altered. Defaults to 50. Currently only supports a single value to remove for all classes listed in FUELMOVE_C.
`POTFMOIS_S:`	Numeric, lenth 6. Fuel moisture for severe fires
`POTFMOIS_M:`	Numeric, length 6. Fuel moisture for moderate fires
`SIMFIRE:`	Numeric, length 1. How often to simulate fires, 0 is every cycle

Van Dyck, M.G. and Smith-Mateja, E.E., 2000. Keyword reference guide for the Forest Vegetation Simulator. USDA Forest Service Forest Management Service Center, Fort Collins, CO.

Reinhardt, E.D. and Crookston, N.L., 2003. The fire and fuels extension to the forest vegetation simulator. Fort Collins, CO: US Department of Agriculture, Forest Service, Rocky Mountain Research Station.

Crookston, N.L., Gammel, D.L., Rebain, S., Robinson, D.C.E. and Keyser, C., 2006. User’s guide to the database extension of the forest vegetation simulator version 2.0. USDA Forest Service. Rocky Mountain Research Station.

wrightmicahc/keyfiler documentation built on May 14, 2019, 8:03 a.m.