Version 2.11

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Summary

• Version 2.11.0 has functionality for understorey cleaning in thinnings.
• Biofuel thinning can be triggered automatically if there are many understorey trees.
• No specific pricelist is required for biofuel thinnings, the biofuel price in the ordinary price list is used.

New feature: Understorey cleaning in thinnings (swe: underväxtröjning vid gallring)

Understorey cleaning means that small trees are removed before thinning. Typically these trees has dbh < 8 cm, and gives no timber or pulpwood, but obstruct the harvester machine. Rules for understory cleaning is determined by a set of new parameters in the TreatmentModel control table, for example a diameter limit for classification of understorey trees, and a stem density threshold that will trigger such a cleaning. The cost for understorey cleaning is entered on the Cost and Revenue control tables.

New feature: Biofuel thinning can be triggered automatically if there are many understorey trees

You can tell the program to trigger a biofuel thinning if the number of understorey trees exceeds a certain limit (parameter "Understorey Density Trigger Biofuel Thinning" in the TreatmentModel control table). The feature is deactivated by default.

Simplification: No additional pricelist required for biofuel thinning

Biofuel thinning is a special type of thinning that can be applied in young stands, and can also be triggered automatically from this version of the program (see above). Biofuel thinning has its own cost functions, since the machinary is different from a single-tree thinning harvester. In bio fuel thinning it is assumed that all cut trees are sold as biofuel. To handle this in Heureka, until now you had to do a workaround by entering a specific price list with a large top diameter limit for timber and pulpwood. As a result, only bio fuel was obtained from the trees. This was an unnecessary complicated solution! Instead, all cutt trees in biofuel thinnings are now considered bio fuel, and the price is retrieved from the same pricelist used for thinnings.

Bug fixes and other changes

Id	Category	Severity	Summary	Fixed_in_version	Resolution	Comment
0000211	TPG	major	Youngs stands not thinned in first harvest period even if thinning criteria met	2.11.1	fixed
0000212	TPG	minor	Thinning Period Delay Generation 2 only applied from generation 3 onward	2.11.1	fixed
0000213	TPG	tweak	Treatment program generator tests alternatives with invalid thinning periods	2.11.1	fixed
0000214	TPG	minor	Enforced thinning sometimes applied even if a valid thinning period is found	2.11.1	fixed
0000192	Visualisation StandWise	minor	Adding a DEM (Digitial Elevation Model) in StandWise results in an index error.	2.11.0	fixed
0000208	TPG	feature	Add a button that allows the user to select species of trees to print to log	2.11.0	fixed
0000205	TPG	major	Initial state mean age for young plantation set to 0 after TPG	2.11.0	fixed
0000206	TPG	minor	Rerun of simulations for unmanaged stands ignored period midth	2.11.0	fixed
0000198	TPG	minor	Initial bare land is not regenerated when rerunning a simulation when using NFI-data plots as input data	2.11.0	fixed
0000207	TPG	minor	Print tree list during rerun of simulation crashes the program for large simulations	2.11.0	fixed
0000201	Other	minor	Error when saving and loading default result variables in result variable selection dialog	2.11.0	fixed
0000210	Other	minor	StandWise hangs when selecting properties	2.11.0	fixed
0000199	Optimization	feature	Spara del av optimeringsmodell	2.11.0	fixed
0000191	Map	minor	Error "Invald column name..." when saving shapefile	2.11.0	fixed
0000209	Installation	major	Exception in StandWise if neither PlanWise or RegWise has been run due to missing habitat model files.	2.11.0	duplicate
0000195	Growth / production	major	Inconsistent growth in StandWise	2.11.0	fixed
0000197	Growth / production	feature	Skip pricelist for biofuel thinning and assume all felled trees are bio fuel	2.11.0	fixed
0000189	General	minor	Price trend handler may start unnecessary recalculation	2.11.0	fixed
0000204	Data import	minor	User should be notified when column names are wrong in tree list import files	2.11.0	fixed	When import tree-level data, miss-spelled column names would be ignored resulting in data not being imported as expected. The user is now notified if column names are wrong or mandatory columns are missing.
0000202	Control categories	minor	No pricelists selected after adding cost control table from file	2.11.0	fixed
0000203	Control categories	minor	Control table file name should be added so user can separate different versions	2.11.0	fixed