Read also the Heureka Wiki about control tables: Heureka wiki - Control Tables

 

A control table is a section of a Control category containing settings of a particular type. There is, inter alia, a control table called Treatment Model where you can define how to perform a regeneration. The Pricelist control table includes price lists and bucking boundaries, the Cost control table includes cost information, and the NatureConservation control table defines how retention trees should be managed, etc.

 

Klicka för att förstora

Example of a control table, here Treatment Model.

 

 

tog_plusThe different Control Tables

The Production Model control table contains settings for the growth engine, including for example possibilities to change selected functions for basal area growth, mortality, ingrowth (recruitment into new size or age classes), and volume calculations. The typical user should not make changes in this table.

 

The Treatment Model control table is used to specify the layout for individual treatments. Read more about the settings in the Simulation of silvicultural treatments and harvesting

 

The Treatment Program Generator control table is available in the PlanWise and StandWise applications, and corresponds to the Scenario Settings control table in RegWise. The table contains settings for putting together management programs (schedules). For example, here you select management systems, define timing intervals for different treatments, select a fertilization policy (if any), and whether harvest residues should be extracted or not.

 

You can apply both simple and more advanced settings for costs and revenues in the Cost and Revenue control table. The parameters (or functions) that can be set depend on the cost type. For thinning, you can select the time schedule function and change some function coefficients. In the table, you select the pricelists to be used depending on the harvest action.

 

In the Climate Model control table the use of climate growth response models is controlled. A pre-processed climate scenario is used as input, which is really a growth change scenario. A scenario describes how a climate change will affect growth. The scenarios available for Heureka have been calculated by an external model called BIOMASS, with climate scenarios developed by the Swedish Meteorological and Hydrological Institute (SMHI) as input.
In the Dead Wood control table you can set decomposition coefficients for dead wood, whether the amount of dead wood will be registered or calculated, and effects of final felling on the abundance of dead wood. The simulated abundance of dead wood is presented in the Dead Wood results section. Besides being a result in itself, dead wood values are used in the calculations of recreation index and carbon storage. See also: https://www.heurekaslu.se/wiki/Category:Dead_Wood.

 

The Recreation control table holds settings for calculation of Recreation index, as well as model selection for Shrub cover estimation.

 

The Carbon control table holds settings for calculation of soil carbon, as well as carbon sequestered in harvested wood products.

 

Some of the tables are described more in detail in this Help. Read also the Heureka Wiki about control tables for a definition of every single parameter: Heureka wiki - Control Tables

 

<%EXTOGGLE%>How to connect control tables to stands

The simulation of how a stand is managed and develops over time is thus determined by settings that you can make in different types of control tables. You can make multiple instances (copies) for each type of control table so that different settings can be applied to different stand types. The primary way to link a set of stands to a particular setting is to first divide the stands into different forest domains, and then link one or more control categories to each forest domain. However, this can in some cases lead to the number of forest domains and the number of control categories become unwieldy. An example is if you have different price ranges in an analysis area, for example. Therefore, you can also make a more direct link between stand and control tables, without going through forest domains and control categories.

 

Linking via forest domains

See section Link control categories to forest domains

 

Conditional control tables (direct linking)

This link takes precedence over that provided by the forest domain settings and is called "Conditional Control Tables". It also requires that you have imported a stand register, either as basic data or as supplementary data. Only one variable is included in a condition, unlike the more complicated conditions that can be created for a forest domain. The variable that can be used belongs to the group "StandObjectData", which is created when a stand register is imported. You can choose one of the following variables: AreaLevel2, AreaLevel3, Register, UserDefined1, UserDefined2, ..., and UserDefined10. AreaLevel2 and AreaLevel3 are text-type, while the Register and UserDefined variables are numeric. Instructions (see Figures 2 and 3):

 

1.(Figur 2) Click the Conditional Control Tables button in Forest Domain Builder:

ConditionalControlTables_OpenButtonFigure 2.

 

2.Click Add Table (A) and select the desired type of control table (Figure 3), such as the Cost and Revenue control table that specifies which price list to use.
3.Select which variable (C) is to be used as a condition variable.
4.Add one row to the table for each case (D).

Exemplet (figur 3) visar inställningar för ett fall där man har tre distrikt, som kallas Norra, Västra och Östra, namn som man har registrerat i kolumnen AreaLevel2. Därför har AreaLevel2 valts som villkorsvariabel (C) och en rad lagts lagts till för varje distrikt. Tre kontrollkategorier har dessförinnan skapats som heter "Norra priser", "Västra priser", och "Östra priser" (figur 4). Till var och en av dessa kontrollkategorier har en kontrolltabell av typen "Cost and Revenue" lagts till, och inga andra kontrolltabeller. Tre timmerprislistor har också skapats, och för var och en av de tre kontrollkategorierna har en viss prislista kopplats (den kopplingen görs i "Cost and Revenue"-tabellen).

 

The example below (Figure 3) shows the settings for a case where there are three districts, called DistrictN, DistrictW and DistrictE, names that have been registered in the AreaLevel2 column. Therefore, AreaLevel2 has been selected as condition variable (C) and a row has been added for each district. Previously, three control categories have been created called "Area North prices", "Area West prices" and "Area East prices" (Figure 4). To each of these control categories, a "Cost and Revenue" control table has been added (and no other control tables). Three timber price lists have also been created, and for each of the three control categories, a certain price list has been linked (this link is made in the "Cost and Revenue" table).

 

Conditional_controltables

Figure 3. Example of linking control table Cost and Revenue depending on the value of the stand register variable AreaLevel2.

 

conditional_controltables_pristabeller

Figur 4. Control categories created (solely) for the "conditional control tables"-type link.

 

 

Unless we had been able to link specific control tables in this direct way and instead handle all links via forest domains, then in a scenario with ten forest domains and three price ranges, we would have had to create thirty forest domains, and in addition triple the number of control categories. With the direct linking of price lists, we only had to add three additional control categories, and no more forest domains.

 

Man kan i ett och samma projekt ha olika indelningar för olika kontrolltabeller. Till exemplet ovan kan vi lägga till olika inställningar för olika älgbetesområden. Först skapar vi två nya konstrollkategorier, och lägger in kontrolltabellen ProductionModel till var och en av dessa, och ändrar i parametern "Sapling Damage Factor > Moose". Därefter klickar vi på knappen "Lägg till tabell" i formuläret nedan och väljer ProductionModel. Då listar programmet alla kontrollkategorier som innehåller en kontrolltabell av typen Production Model. I exemplet nedan antar vi att vi har två olika områden och att vi har lagt in ett värde i kolumnen UserDefined1 (i beståndsregisterfilen som importerats), där värdet 1 används för områden med högt betestryck och 2 för lågt betestryck.

 

You can have different divisions for different control tables in one and the same project. For example, to the example we could add different settings for different moose grazing areas. To do this, create two new control categories, and add the Production Model control table to each of them, and change the parameter "Sapling Damage Factor> Moose". Then  click on the "Add Table" button in the form below and select Production Model. The program then lists all control categories that contain a Production Model control table. In the example we assume that we have two different areas and that we have entered a value in the column UserDefined1 (in the stand register file imported), where the value 1 is used for areas with high moose populations and 2 for low populations.

 

 

conditional_controltables_algbetning

Figur 5. Example of linking control table Production Model depending on the value of the stand register variable UserDefined1.

 

<%EXTOGGLE%>Tip! What does a certain setting mean?

If you click on a parameter in a control table, a help text is displayed below (Figure 1).

 

ExampleControlTableParameterHelpDescription

Figure 1. If you click on a parameter in a control table, a help text is displayed below.

 

 

<%EXTOGGLE%>Show control table in StandWise

To display the content of a control table, you highlight the table in the Control Tables window (Figure 2):

 

SelectControlTableStandWise

 

Figure 2.

 

 

If the Control Tables window is not shown in StandWise, you open it in the Show menu (Figure 3). If you have closed down the Attribute window, you can open it in this menu too.

 

MenyVisaKontrolltabellerStandWise

Figure 3.

 

 

<%EXTOGGLE%>Show control table in PlanWise and RegWise

In PlanWise, the control tables are shown under the “TPG-settings” tab.

PlanVis_Flik_TPGinstalln

 

In RegWise, they are shown under the “Simulation settings” tab.

RegVis_Flik_Simuleringsinstalln

 

<%EXTOGGLE%>Add control table to control category

 

Author: Peder Wikström. Created with Help & Manual 6 and styled with Premium Pack Version 2.31 © by EC Software