User's guide to StandWise

Introduction

StandWise (sv: BeståndsVis) is a stand-level management simulation and visualization tool (in 2D and 3D). With StandWise you can simulate different kinds of treatments, such as planting, cleaning, thinning, clearcutting, and fertilization. Strip-roads can be laid out graphically. You can simulate the development over an extended time horizon and define treatments manually or let the program do it for you. Growth projections are based on single-tree growth functions. Economical returns from harvesting are computed with bucking algorithms given the price lists used. Cost computations are based on time-consumption functions for harvester and forwarder. Besides from growth- and yield values, other utilities such as carbon sequestration and recreational indices can be computed.

Working with Projects

Introduction to Projects

Create a new Project

Open an existing Project

Making a copy of a Project

Delete a Project

Data Import

The initial forest state is usually prepared in PlanStart, where data from different sources can be imported and formatted for analyses in Heureka. From StandWise and current forest database, available analysis areas show up in "Treatment Unit Window". Expand the area of interest to choose current stand with the "Open selected treatment unit"-button above.

Another possibility is to insert forest data directly in StandWise. In "Tools" choose "Register treedata...", and then you can choose to create a new treatment unit, in a new or existing analysis area, that will be saved in the forest database. To this stand, one or more plots are added. Single-tree plot data can either be simulated from mean values or added tree by tree. In the simulations, diameters at breast height for the different tree species are obtained with a Weibull-distribution. For each tree species, the basal area (in m²/ha) and the number of stems per hectare are here needed. To a plot, each tree can be added from the keyboard. Select tree species, tree type and type the diameter and the number of stems (i.e., a possibility to add more than one tree at the same time). This is a quite lengthy procedure but can be useful, e.g., when analysing old inventory data available in, for Heureka, wrong format or on paper.

The values that should be given at plot-level; latitude, region, site index, etc., follows the definitions in PlanStarts Import of stand register.

In "Register treedata" it is possible to view plot data, including the single trees, but only when the current data has been imported this way. The tree-list can be copied and pasted in some other software. Both mean values at the stand level and information about the single tree can be obtained in StandWise, described in later parts. However, complete tree-lists for a plot or a stand can, for now, only be derived from the forest database using SQL-queries.

Viewing and Visualizing

A stand and its corresponding data can be viewed in several different ways. In "Table" and "Select vaiables to show in table..." choose between:

• Biomass (in ton/ha for the different parts of the trees, e.g. stem, branches and roots, per tree species and before or after any treatment)
• Carbon and nitrogen (in kg/m² for soil organic amounts of carbon and nitrogen, respectively)
• Data per Species (standwise values, e.g. age in years and volume in m³sk/ha, per tree species and before or after any treatment)
• Dead wood (in kg for amounts of carbon, in m³ for different types of dead wood in different decay classes, per tree species)
• EvenAged (one of the three different types, before or after any treatment? Not a static value but re-calculated in the simulations?)
• Financial Value (both volumes in m³/ha, for e.g. timber and pulp, amounts in ton/ha, for e.g. harvest residuals, and different costs and revenues in SEK/ha)
• Forest Data (standwise values, e.g. age in years and volume in m³sk/ha, before or after any treatment)
• Forest Domain
• Growth
• Mortality
• Recreation
• Statistics
• Treatments

Miscellaneous

Organize Windows

Reference

Control Tables

Common Dialogs

StandWise Dialogs

Error Messages