Difference between revisions of "SGIS"

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== General System description ==
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{{DSS description, Name, responsible organisation and contact person
 
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|Name=Skog Geographical Information System, Gaya-Skog Geographical Information System
System name: Skog (Norwegian for forest) Geographical Information System.
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|Acronym=SGIS, Gaya-SGIS
 
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|Responsible organisation=Norwegian University of Life Sciences
Acronym: SGIS
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|Type of the owner organization=research institution
 
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|Institutional framework=N/A
=== 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 description, Scope of the tool
 
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|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.
[[Category:Articles where more data is needed]]
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|Modelling dimension=Economical indicators, Forest indicators, Ecological indicators, Climate change
[[Category:Decision support system]]
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|Temporal scale=long term (strategic)
[[Category:Norwegian DSS]]
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|Spatial context=spatial with no neighbourhood interrelations
[[Category:Spatial DSS]]
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|Spatial scale=forest level, stand level
[[Category:GIS application]]
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|Objectives dimension=multiple objectives
[[Category:Strategic planning]]
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|Goods and services dimension=market non-wood products, market wood products
[[Category:Stand level]]
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|Forest management goal=biodiversity evaluation, biomass estimation, carbon sequestration, climate change impact, economic evaluation, yield prediction, wood supply planning
[[Category:Linear programming]]
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|Supported silvicultural regime=even-aged
[[Category:Landscape quality]]
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|Decision making dimension=single decision maker
 
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|Participatory planning tasks supported=N/A
__TOC__
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}}
 
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{{DSS description, Concrete application
=== Scope of the system ===
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|Typical use case=Research, consultancy commissions, practical forest planning
SGIS is a tool for simulation of forest development and optimization of forest treatments in a GIS-user interface!
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|User profile=private legal entities (cooperatives, corporations, trusts, partnerships, condominium associations), other
 
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|Country=Norway
=== System origin ===
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|Number of users=N/A
The current version of SGIS is based on a prototype developed in PC-ArcInfo (Næsset 1997).
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|Number of real-life applications=N/A
 
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|Utilisation in education: kind of utilisation (demo, use)=N/A
SGIS is now based on ArcView version 8 (9) and is programmed using Visual Basic for Applications.
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|Utilisation in research projects: references=Hoen et al. 2001; Eid et al. 2001, 2002; Bergseng et al. 2012; Raymer et al. 2009; Raymer et al. 2011; Rørstad et al. 2010
 
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}}
SGIS consists of a functionality specially made for forest related problems and standard ArcView GIS-functionality.
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{{DSS description, Installation and support
 
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|Status=used (stable and upgraded/updated recently)
SGIS was mainly developed for teaching and research at the university but are now also used in commercial forestry.
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|Accessibility=N/A
 
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|Commercial product=No
SGIS consists of [[GAYA]] (stand simulator) and [[J]] (mathematical programming tool). Both [[GAYA]] and [[J]] is hidden behind the SGIS windows GIS interface (ArcView)
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|Deployment cost=N/A
 
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|Price=
=== Related systems ===
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}}
* [[GAYA]]
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{{DSS description, Data, data model and data management
* [[J]]
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|Input data requirements=Forest inventory data
 
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|Format of the output data=table, map
== Data and data models ==
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|Database=Excel
 
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|GIS integration=ESRI
=== 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 description, Models and methods, MBMS, decision support techniques
 
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|Forest models=growth models, yield models
=== Forest data input  ===
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|Social models=N/A
Digitized stands boundaries and the stand database can be imported from forest management planning systems.
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|MCDM methods=N/A
 
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|Optimisation algorithm=linear programming
=== 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 user must specify an objective function and constraints, too.
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{{DSS description, Support of knowledge management process
 
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|Supported KM processes=Knowledge Storage
== Models ==
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|Integrated KM techniques to identify and structure knowledge=
 
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|Integrated KM techniques to analyse and apply knowledge=
=== 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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{{DSS description, Support of social participation
 
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|Stakeholder identification support=
 
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|Planning criteria formation support=
== Decision Support ==
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|Planning process monitoring and evaluation=
 
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|Planning outcome monitoring and evaluation=
=== Definition of management interventions ===
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Time of harvest, plantations, thinnings, reconversions...
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{{DSS description, User interface and outputs
 
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|User access control=Yes
=== Typical temporal scale of application ===
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|Parameterised GUI=Yes
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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|Map interface=2D
 
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}}
=== Types of decisions supported  ===
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{{DSS description, System design and development
*Management level
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|Stakeholder identification support=
**strategic decisions
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|Planning criteria formation support=
 
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}}
== Output ==
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{{DSS description, Technological architecture, integration with other systems
 
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|Operating system=Windows
=== Types of  outputs ===
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|Scalability=No
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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}}
 
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{{DSS description, Ongoing development
Thematic maps presents, for example, the age class distribution or optimal treatments of a selected period.
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|Adaptation effort (man years)=N/A
 
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}}
=== Spatial analysis capabilities  ===
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{{DSS description, Documentation
SGIS uses facilities of ArcView 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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|Manual=No
 
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|Technical documentation=No
=== 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 Windows OS
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* Other software needed: ArcView, MS Excel
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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 Visual Basic for applications language (VBA) facilities of ArcView and MS Excel.
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[[GAYA]] stand simulator and [[J]] linear programming (LP) program are also used.
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=== Usage ===
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Describe the level of use: Teaching, Research level use, Industry use, Government use
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=== User interface ===
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SGIS is an expert system. Most of the user interfase is developed using GUI, however, the definition of the forest treatments is defined in a command file.
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=== Documentation and support ===
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A user manual (in Norwegain) is provided.
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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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Revision as of 17:26, 27 August 2012

Template:DSS description, Name, responsible organisation and contact person Template:DSS description, Scope of the tool Template:DSS description, Concrete application Template:DSS description, Installation and support Template:DSS description, Data, data model and data management Template:DSS description, Models and methods, MBMS, decision support techniques Template:DSS description, Support of knowledge management process Template:DSS description, Support of social participation Template:DSS description, User interface and outputs Template:DSS description, System design and development Template:DSS description, Technological architecture, integration with other systems Template:DSS description, Ongoing development Template:DSS description, Documentation