Version 2.18
Version 2.18
2022-03-08
Summary
- Can now leave a proportion of trees cut in thinning in forest as dead wood
- New result variables for dead wood >= 20 cm diameter
- New management systems in RegWise: Checkerboard Management and Nature Conservation Management
- New result type: Disturbance Risk
- Simulation of initial soil carbon stock in litter
- Simulation of soil carbon in peat
- Improved calculation of breeding effect
- Expanded User Results definitions to include maximum diameter and age
- Several bug fixes in tactical simulation
New Features
Leaving thinned trees as dead wood
It is now possible to leave a certain proportion of trees cut in thinning “unharvested”, to become part of the forests dead wood pool. This to enable simulation of a nature conservation adapted treatment. In control table Treatment Model > Leave stems in forest after treatment, the percentage of thinned trees to be left as dead wood is given by the user (Default value: 0%).
New result variables for dead wood with 20 cm diameter and coarser
It is now possible to account the estimated volume of dead wood, standing and downed respectively, with a diameter of 20 cm and coarser, see Result Variables > Dead Wood. If the initial volume of dead wood is simulated, in control table Dead Wood > Initial dead wood, the proportions of dead wood with 20 cm diameter and coarser (of the total volume of dead wood) are based on Swedish NFI data (50% in Norra Norrland, 60% in the other regions of Sweden, and 70% in nature reserves).
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Bug Fixes
Project imported data set to new start date (Beta)
Heureka now has a function (Beta version) for projecting the state of an imported data set, from the inventory date specified for each stand, to a desired start date for a new analysis. The program then creates a new area and the old data is not affected. In the projection, the program asks if you want to include treatments that have been carried out since the inventory. See the help documentation for more information: English Swedish
Conditional control tables - direct linking of control tables to stands
"Conditional control tables" is a way to link specific control tables to stands, and takes precedence over the links created via forest domains and control categories. The feature is particularly useful if you have many different geographical regions in an analysis area, for example price regions, and can help keep the number of forest domains and control categories down to a minimum. See the help documentation for more information: English Swedish
New result variable for total dead wood volume
To get total dead wood volume, you must sum volumes over decay classes manually, which prevents making graphs and tables that shows the total volume of dead wood. Therefore, a new result variable called "Volume Deadwood All Decay Classes to Include" has been added. You can select what decay classes that should be included in this variable in the Dead Wood control table. For example, you may prefer to exclude the classes with almost completely decayed wood. All decay classes are included by default.
PlanWise: Let non-fertilization alternatives be generated automatically
A new setting in the Treatment Program Generator control table called "Also Generate Programs without Fertilization" simplifies things if you want create treatment programs both with and without fertilization. If the parameter is set to true, you do not need to add a separate control category to generate non-fertilized alternatives, they will be generated anyway.
You can read more about this new feature here: Fertilization in PlanWise
Explicit dates saved
In previous versions only the inventory year has been saved in the database when importing data, but now on the explicit date is kept (if available). The column name "InventoryYear" in the stand register is renamed to "Date" (although "InventoryYear" can still be used as column name).
Multiple TPG-simulation can be included in the same optimization model
When solving an optimization problem, multiple TPG-simulation results can now be selected as input data. A condition is that no two TPG-simulations contains the same treatment unit, and an error message will be displayed of that criteria is violated.
Bug fixes and other changes
| Id | Category | Severity | Summary | Fixed_in_version | Resolution | Comment |
|---|---|---|---|---|---|---|
| 0000462 | TPG | minor | Seed trees removed too early in tactical TPG | 2.18.0 | fixed | Seed trees removed too early in tactical TPG |
| 0000451 | TPG | major | TPG generates invalid uneven-aged programs when fertilization policy is active for even-aged management | 2.18.0 | fixed | TPG generates invalid uneven-aged programs when fertilization policy is active for even-aged management |
| 0000452 | TPG | minor | Biofuel extraction in CCF management is not vorking properly | 2.18.0 | fixed | Biofuel extraction in CCF management is not vorking properly |
| 0000460 | TPG | minor | Tactical TPG generates empty programs with incorrect period lengths | 2.18.0 | fixed | Tactical TPG generates empty programs with incorrect period lengths |
| 0000467 | Report generator | minor | Varningsruta för "efter-värden i rapportbyggaren" | 2.18.0 | fixed | Varningsruta för "efter-värden i rapportbyggaren" |
| 0000458 | RegWise simulation | minor | No fertilizations performed despite control table settings | 2.18.0 | fixed | No fertilizations performed despite control table settings |
| 0000453 | Optimization | major | False message that feasible solution is not found when solving optimization problem with SCIP | 2.18.0 | fixed | False message that feasible solution is not found when solving optimization problem with SCIP |
| 0000454 | Optimization | minor | Malloc error when building optimization models with cliques and clusters | 2.18.0 | fixed | Malloc error when building optimization models with cliques and clusters |
| 0000455 | Optimization | minor | Cannot open "Import Optimization" interface | 2.18.0 | fixed | Cannot open "Import Optimization" interface |
| 0000465 | Map | minor | Result map show wrong stand age in TreatmentUnitInfo window for tactical TPG result | 2.18.0 | fixed | Result map show wrong stand age in TreatmentUnitInfo window for tactical TPG result |
| 0000456 | Growth / production | major | Treatment unit volume is negative when there is also a layer of type 6 | 2.18.0 | fixed | Treatment unit volume is negative when there is also a layer of type 6 |
| 0000461 | General | minor | Index out of range with additional decomposition in tactical | 2.18.0 | fixed | Index out of range with additional decomposition in tactical |
| 0000459 | General | minor | Mean Volume Productive Area incorrectly calculated in initial state | 2.18.0 | fixed | Mean Volume Productive Area incorrectly calculated in initial state |
| 0000471 | Forest Domain Builder | major | Error when using dynamically assigned control categories | 2.18.0 | fixed | Error when using dynamically assigned control categories |
| 0000472 | Forest Domain Builder | major | Simulation crashes when a control category is dynamically assigned 0% of stands in period 0 | 2.18.0 | fixed | Simulation crashes when a control category is dynamically assigned 0% of stands in period 0 |
| 0000457 | Data import | major | Linking stand register data to existing stands won't insert rows | 2.18.0 | fixed | Linking stand register data to existing stands won't insert rows |
| 0000468 | Control categories | major | Importing a cost and revenue control table from PlanWise into StandWise removes all control tables | 2.18.0 | fixed | Importing a cost and revenue control table from PlanWise into StandWise removes all control tables |