ControlTable Treatment Program Generator

In the treatment program generator control table you can configure how treatment programs are generated.

1. Treatment timing - General

Allows you to control how treatment programs are generated, and how many treatment programs that are generated.

Final Felling Period Max

Defines the maximum periods to await final felling after the corresponding lowest allowable stand age has been reached.

Final Felling Period Min

Defines the minimum periods to await final felling after the corresponding lowest allowable stand age has been reached.

Management System

Allows you to select the type of management system to generate treatment programs according to:

EvenAged generates alternatives for even-aged management.

Continuous generates alternatives for continuous cover management (also referred to as CCF, uneven-aged, selective felling, or selection harvesting).

Unmanaged generates an alternative without any treatments (also referred to as free development).

Min Final Felling Contorta

There is not legal minimum felling age for contorta, but the program needs a recommended one in order to generate reasonable programs.

Min Final Felling Deciduous

The minimum final felling age is 35 years according to Swedish forestry regulations for deciduous forests (except for ash (50 yrs), beech (80 yrs) and oak (90 yrs)). However, most users wish to apply longer rotations than 35 years.

Rotation Age Adjustment

Rotation age adjustment factor. Lowest final felling age is multiplied with this factor. For example, factor 1.1 means that the miniumm rotation age allowed is increased by 10%.

Thinning Period Delay Max

Defines the number of periods, from a certain stand age, to vary the simulation of first thinning.

2. Treatment timing - Strategic planning

Always Cleaning

True: Only save programs that include cleanings, if cleaning is recommended according to guide.

False: Do not save programs without cleanings, if cleaning is recommended according to guide.

Always Thinning

True: If thinning is possible before a certain final felling period, then only programs with thinnings are saved, given that final felling period.

False: Programs without thinnings are also saved, even if thinning is possible according to thinning guide.

Cleaning Period Delay Max

Defines the number of periods, from a certain stand age, to vary the simulation of cleaning.

Max Number of Alternatives

(only available if EvenAged is selected)

Defines the maximum number of alternative treatment programs to be generated for a treatment unit.

Max Number of Alternatives To Save

(only available if EvenAged is selected)

Defines the maximum number of alternative programs to be saved for a treatment unit. Saved programs have net present values higher than all unsaved.

Max Number of Thinnings

Defines the maximum number of thinnings to be simulated in a treatment unit, in the same generation.

Min Time Between Thinning and Final Felling

Defines the minimum periods between thinning and final felling.

Min Time Between Two Thinnings

Defines the minimum number of periods between thinnings simulated in a treatment unit.

Treatment Priority

Defines the order, by Prio1, Prio2, and Prio3, in which treatments are to be generated in the alternative programs.

3. Treatment timing - Tactical planning

TODO

Program restrictions - fertilization

Allows you to control if and how fertilization programs are generated.

FertilizationPolicy

Allows you to select the type of system to generate alternative programs (in treatment units where site and stand restricitions are met) according to:

FP_NONE generates alternatives without any fertilization.

FP_FIRSTTHIN generates alternatives with fertilization prior to first thinning.

FP_FINALFELLING generates alternatives with fertilization prior to final felling.

FP_FINALFELLING_TIMESTWO generates alternatives with two fertilizations, with a time interval of five years, prior to final felling.

FP_LASTTHIN_AND_FINALFELLING generates alternatives with fertilization prior to last thinning and final felling.

FP_EVERY_THIN generates alternatives with fertilization prior to all thinnings.

FP_EVERY_HARVEST generates alternatives with fertilization prior to all harvests.

FP_INTENSIVE generates alternatives with intensive fertilization, performed already in young stands and repeated with a certain time interval. Note that certain site restrictions must be met to allow for intensive fertilization.

Program restrictions - forest fuel

Allows you to control if and how forest fuel extraction programs are generated.

FinalFelling

True generates alternatives with extraction following final felling, False do not.

SelectionFelling

True generates alternatives with extraction following selection felling, False do not.

Thinning

True generates alternatives with extraction following thinning, False do not.

Simulate plant initial period

Allows you to control if and how regeneration by planting is simulated in initial periods (in treatment units with bare land after final felling).

MaxAge

Defines the maximum stand age still allowing regeneration by planting.

PropEmptyPlots

Defines the minimum proportion of "empty plots" (i.e. no seedlings or saplings present at the plot) at the stand-level allowing regeneration by planting.

SimPlantFreeDevelopment

True simulates regeneration by planting bare land even if ManagementSystem is defined as Unmanaged, False do not.