Difference between revisions of "SGIS"

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== General System description ==
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{{DSS, Wiki quality control
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System name: Skog (Norwegian for forest) Geographical Information System.
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{{DSS, Name, responsible organisation and contact person
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Acronym: SGIS
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|Has full name=Skog Geographical Information System, Gaya-Skog Geographical Information System
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|Has acronym=SGIS, Gaya-SGIS
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=== Brief overview ===
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The SGIS is a strategic planning system designed to aid the planner in selecting site-specific management schedules that will conform to environmental and recreational standards.
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{{DSS, Software identification
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|Has software=SGIS.Software
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[[Category:Articles where more data is needed]]
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[[Category:Decision support system]]
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{{DSS, Description
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[[Category:Norwegian DSS]]
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|Has description=The SGIS is a strategic planning system designed to aid the planner in selecting site-specific management schedules that will conform to environmental and recreational standards.
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[[Category:Spatial DSS]]
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|Has modelling scope=Economical indicators, Forest indicators, Ecological indicators, Climate change
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[[Category:GIS application]]
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|Has temporal scale=Long term (strategic)
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[[Category:Strategic planning]]
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|Has spatial context=Spatial with no neighbourhood interrelations
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[[Category:Stand level]]
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|Has spatial scale=Forest level, Stand level
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[[Category:Linear programming]]
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|Has objectives dimension=Multiple objectives
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[[Category:Landscape quality]]
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|Has goods and services dimension=Market non-wood products, market wood products
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|Has decision making dimension=Single decision maker
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__TOC__
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|Has forest management goal=biodiversity evaluation, biomass estimation, carbon sequestration, climate change impact, economic evaluation, yield prediction, wood supply planning
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|Supports silvicultural regime=even-aged
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=== Scope of the system ===
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SGIS is a tool for 1. Simulation of forest development and 2. Optimization of forest treatments in a GIS-user interface!
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{{DSS, Concrete application
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|Has typical use case=Research, consultancy commissions, practical forest planning
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=== System origin ===
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|Has country=Norway
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The current version of SGIS is based on a prototype developed in PC-ArcInfo (Næsset 1997).
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|Has number of users=N/A
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|Has number of real-life applications=N/A
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SGIS is based on ArcView version 8 (9) and is programmed in Visual Basic for Applications.
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|Has utilisation in education=N/A
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SGIS consist of a functionality specially made for forest related problems and standard ArcView GIS-functionality.
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{{DSS, Decision support techniques used in the DSS
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|Has decision support techniques=SGIS.Decision support techniques
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SGIS was mainly developed for teaching and research at the university but are now also used in commercial forestry.
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{{DSS, Support of Knowledge Management
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=== Support for specific issues  ===
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|Has knowledge management processes=SGIS.Knowledge management process
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=== Related systems ===
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{{DSS, Support of social participation
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* [[GAYA-J]]
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|Has support for social participation=SGIS.Support of social participation
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== Data and data models ==
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{{DSS, DSS development
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|Has DSS development=SGIS.Description of DSS development
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=== Typical spatial extent of application  ===
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The primary unit of SGIS is usually the forest stand or sometimes even a smaller unit if sufficient data for such units can be provided.
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{{DSS, Documentation
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|Has technical documentation=No
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=== Forest data input  ===
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The stands boundaries has to be digitized using the provided GIS capabilities, and the stand database is generated from stand data files imported from the forest management planning system [[SkogPlan]].
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=== Type of information input from user (via GUI) ===
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Stand treatments schedules and spatial constraints (buffers, adjacencies, etc.). Number of 5- or 10-year periods used for calculations. Also, allowable treatments in each stand is prescribed. The planner must specify an objective function and constraints too. Otherwise, default objective function would be the maximization of NPV subject to a non-declining felling path.
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== Models ==
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=== Forest models ===
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Once stand treatments schedules and spatial constraints are defined, [[GAYA-JLP|GAYA]] stand simulator is used. GAYA provides the future development of stand variables such as diameter, height, volume and value increment over time.
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== Decision Support ==
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=== Definition of management interventions ===
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Time of harvest, plantations, thinnings, reconversions...
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=== Typical temporal scale of application ===
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Although being data collected at stand level, the application was developed in order to join multiple stands and reach conclusions at a strategy planning level.
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=== Types of decisions supported  ===
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*Management level
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**strategic decisions
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**administrative decisions
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**operating control decisions
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* Management function
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* planning decisions
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**organizing decisions
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**command decisions
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**control decisions
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** coordination decisions
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*decision making situation
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**unilateral
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**collegial
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**Bargaining / participative decision making
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=== Decision-making processes and models ===
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*Logic modeling
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*Operations research modeling
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**Direct approaches
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*Simulation (with and without stochasticity)
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*Multiple criteria/ranking
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== Output ==
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=== Types of  outputs ===
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Results are displayed in tabular reports summarizing quantities, values, etc. of the optimal solution, shadow prices, and the amount of area devoted to the various treatments in each period.
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They are also showed simple three-dimensional visualization of clear-felled areas in digital elevation models (DEM) as well as thematic maps presented on the computer screen or on paper showing, for example, the age class distribution of a selected period.
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=== Spatial analysis capabilities  ===
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SGIS uses facilities of ARC/INFO in order to allow the input or edition of data and spatial constraints. Then, spatial results are showed, enabling a further spatial analysis through the comparison of previous runs where other planning strategies were used.
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=== Abilities to address interdisciplinary, multi-scaled, and political issues  ===
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SGIS analysis tool can solve not only forest treatment scheduling problems, but also others like finding mountain sides of greater slopes than 40% suitable as goshawk habitats, corridors of old growth forest relating specific patches, etc.
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== System ==
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=== System requirements  ===
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* Operating Systems: MS Windoes OS
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* Other software needed: ARC/INFO
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* Development status:
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=== Architecture and major DSS components ===
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The SGIS was developed by synthesizing commercially available software and well-documented software from previous forest research projects in Scandinavia. It was composed by a common menu-driven graphical user interface for the forest model and a GIS within the GIS environment. It was developed by the simple macro language (SML) facilities of pcARC/INFO.
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GAYA stand simulator and [[JLP]] linear programming (LP) program are also used.
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=== Usage ===
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Describe the level of use: Research level use, Industry use, Government use
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=== Computational limitations ===
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When it was developed, those days hardware and software limitations excluded very large decision problems, owing to long response time. In the largest areas, spatial constraints such as adjacency can be unable to be solved by linear programming.
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=== User interface ===
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Describe the quality of user interface and the Prerequisite knowledge for using the system
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=== Documentation and support ===
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Describe the connection to Help-system and possibilities for assistance, as well as the required training and user support levels
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=== Installation ===
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* Prerequisite knowledge: Level of effort to become functional
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* Cost: (purchase price, development costs, demonstrated return on investment, cost of use, training costs, licence and maintenance costs)
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* Demo: allows the download/utilization of a trial version. If yes, where is it available and what are the trial conditions.
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==References==
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===Cited references===
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<references/>
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===External resources===
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* NÆSSET, E. (1997): A spatial decision support system for long-term forest management planning by means of linear programming and a geographical information system, ''Scandinavian Journal of Forest Research'',12:1,77 — 88
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Latest revision as of 16:05, 3 April 2013

Wiki quality control

Has flag N/A

Name, responsible organisation and contact person

Has full name Skog Geographical Information System, Gaya-Skog Geographical Information System
Has acronym SGIS, Gaya-SGIS
Has wiki contact person
Has wiki contact e-mail

Software identification

Has software SGIS.Software

Description

Has description The SGIS is a strategic planning system designed to aid the planner in selecting site-specific management schedules that will conform to environmental and recreational standards.
Has modelling scope Economical indicators, Forest indicators, Ecological indicators, Climate change
Has temporal scale Long term (strategic)
Has spatial context Spatial with no neighbourhood interrelations
Has spatial scale Forest level, Stand level
Has objectives dimension Multiple objectives
Has related DSS
Has goods and services dimension Market non-wood products, market wood products
Has decision making dimension Single decision maker
Has forest management goal biodiversity evaluation, biomass estimation, carbon sequestration, climate change impact, economic evaluation, yield prediction, wood supply planning
Supports tree species
Supports silvicultural regime even-aged

Concrete application

Has typical use case Research, consultancy commissions, practical forest planning
Has user profile
Has country Norway
Has references about examples of application
Has number of users N/A
Has number of real-life applications N/A
Has utilisation in education N/A
Has research project reference
Has tool dissemination

Decision support techniques used in the DSS

Has decision support techniques SGIS.Decision support techniques

Support of Knowledge Management

Has knowledge management processes SGIS.Knowledge management process

Support of social participation

Has support for social participation SGIS.Support of social participation

DSS development

Has DSS development SGIS.Description of DSS development

Documentation

Has website
Has online demo
Has manual
Has technical documentation No
Has reference
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