Difference between revisions of "ControlTable Scenario Settings"

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; Priority Order For Different Treatments : Select the order for which priority functions should be run and treatment generated. This may have a minor importance. Choosing Thinning before Final Felling means that a stand with a high priority for both thinning and final felling, will be considered for thinning as a first option.
 
; Priority Order For Different Treatments : Select the order for which priority functions should be run and treatment generated. This may have a minor importance. Choosing Thinning before Final Felling means that a stand with a high priority for both thinning and final felling, will be considered for thinning as a first option.
  
== Harvest levels ==
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== Harvest Levels ==
; Final Felling Volume (only used if  Management System = Even-aged)
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; Total Harvest Level, Automatic : Here you can edit the function, based on growth etc., calculating the total production.
: '''Max Annual Volume''' : Here you can enter fixed harvest levels, if you do not want to using the system to determine this for you.
 
: '''Max Proportion''' : Max percentage of total harvest that comes from final felling. Ignored if Max Annual Volume is set.
 
  
; Max (Total?) Production : Paramaters for empirical function that gives an estimate of the so called Total Production. The output from this function is used to determine harvest levels.  
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; Reference Production : Here you can edit the function calculating the reference production, used in the above.
  
; Normal Production : Function parameters for the so called Normal Production. This function is essentially a stand-level growth function. It is not used in growth calculations but only in RegWise to determine the distribution of growth over a rotation. The result is used to determine thinning volume targets based on stand age, in combination with (so far) a pre-defined distribution of the accumulated amount of thinning in a stand at a certain age. Read more here: [[RegWise Priority Functions]] 
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; Final Felling Volume Per Year : Here you can give a certain "target volume" regarding final felling, in certain periods.  
  
; Selection Felling Volume (Only used if Management System = CCF)
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; Thinning Volume Per Year : Here you can give a certain "target volume" regarding thinning, in certain periods.
  
: '''Max Annual Volume''' : Here you can enter fixed harvest levels, if you do not want to using the system to determine this for you.
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; Thinning Volume Proportion, Automatic : Here you can edit the function calculating the proportion of the total harvested volume following from thinning.
: '''Max Proportion''' : Max percentage of total harvest that is selection harvested. Only used if Management System = CCF and ignored if Max Annual Volume is set.
 
  
; Thinning Volume (Only used if Management System = Even-aged)
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; Max Proportion Thinning : Here you can give the maximum proportion of the total harvested volume following from thinning.
  
: '''Max Annual Volume''' : Here you can enter fixed harvest levels, if you do not want to using the system to determine this for you.
+
; Thinning Distribution : Here you can edit the accumulated probability of thinning, regarding the relative age.
: '''Max Proportion''' : Max percentage of total harvest that is selection harvested. Ignored if Max Annual Volume is set.
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 +
; Selection Felling Volume Per Year : Here you can give a certain "target volume" regarding selection felling, in certain periods.
  
 
==Priority functions==
 
==Priority functions==

Revision as of 14:44, 9 November 2012

User's guide to RegWise

This control table is specific and essential for RegWise. It contains settings for determining harvest levels in scenarios and priority functions for allocating activities to treatment units. Regional Framework is used instead of Treatment Program Generator in PlanWise - while the Treatment Program Generator generates a variety of alternative treatment programs to each treatment unit (to enable optimization) the Regional Frameworks purpose is to "pinpoint" one specific treatment program for each treatment unit. This separates simulation from optimization. Do observe that the pinpointing sometimes involves randomization, meaning that the user then leave some decisions to chance.

Program Restrictions

Management System
Select the management system to be applied: Even-aged, Uneven-aged (CCF), or Unmanaged.
Priority Function Periods
Select the number of five-year periods where the NFI priority functions are to be used.
Random Seed
Treatments are basically assigned in priority order. It is possible to let the system enforce deviation from this order by, with a certain probability, skipping a treatment for a treatment unit and go to the next unit in the priority list. The reason for doing this is to account for non-predictable behaviour, since not all forest owners are following the "management handbook". This means that two identical scenarios (i.e. identical assumptions and input data) will give different results, which sometimes makes conclusions difficult to draw. Setting the random seed to a number larger than 0 will give the same result for two identical scenarios.
Priority Order For Different Treatments
Select the order for which priority functions should be run and treatment generated. This may have a minor importance. Choosing Thinning before Final Felling means that a stand with a high priority for both thinning and final felling, will be considered for thinning as a first option.

Harvest Levels

Total Harvest Level, Automatic
Here you can edit the function, based on growth etc., calculating the total production.
Reference Production
Here you can edit the function calculating the reference production, used in the above.
Final Felling Volume Per Year
Here you can give a certain "target volume" regarding final felling, in certain periods.
Thinning Volume Per Year
Here you can give a certain "target volume" regarding thinning, in certain periods.
Thinning Volume Proportion, Automatic
Here you can edit the function calculating the proportion of the total harvested volume following from thinning.
Max Proportion Thinning
Here you can give the maximum proportion of the total harvested volume following from thinning.
Thinning Distribution
Here you can edit the accumulated probability of thinning, regarding the relative age.
Selection Felling Volume Per Year
Here you can give a certain "target volume" regarding selection felling, in certain periods.

Priority functions

Regeneration

Cleaning

Fertilization - Established forest

Intensive Fertilization (young forest)

Thinning

In this section, additional settings for thinnings can be made (not available in ControlTable Treatment Model but unique for RegWise)

Final felling

Forest fuel

In this section, you can set whether forest fuels (harvest residues) should be extracted after harvesting.