Difference between revisions of "Capsis"

Revision as of 10:30, 6 April 2010

General System description

System name: Capsis - Computer Aided Projections of Strategies In Silviculture

Acronym: Capsis

Brief overview

Capsis is a software platform aimed at simulation growth and silvicultural treatments for decision making in forest management, forestry research (hypotheses testing, model evaluation) and educational purposes.

Scope of the system

Capsis is a simulation platform for forestry growth / dynamics models. It is a tool for forestry researchers, forest managers and educational purposes. It makes possible to implement models of various types (stand models, distance-independent or distance-dependent tree models, mixt models…), to run simulations and then compare the different scenarios in the same tool.

Thanks to its flexible architecture, it is possible to integrate heterogeneous models (uneven-aged, several species) with various processes (growth, competition, mortality, regeneration…) and to run simulations in interactive or script modes. Some models can have very particular properties, e.g. radiative balance, genetics information at the individual level, internal biomechanics or wood quality.

System origin

The first version was developped by Philippe Dreyfus between 1993-1999
Since 1999 the platform is developed by François de Coligny, joined by Samuel Dufour in 2008

Support for specific issues

Inventory compilation, harvest scheduling, timber-water-carbon production or prediction, soil protection, yield prediction, biodiversity conservation, spatial planning

Support for specific thematic areas of a problem type

Capability to support decision making phases

Related systems

Data and data models

Typical spatial extent of application

The normal spatial application level of Capsis is the stand level but can be extended to the forest level for specific models.

Forest data input

Capsis input information are

inventory data that can be imported from files
simulated data calcultated by specific algorithms

Type of information input from user (via GUI)

Each model integrated in capsis has its own GUI. This gui allow to set the model input parameters. These parameters depends of the model. There are different type of inputs :

Initial parameters
Evolution parameters
Intervention parameters

Models

Forest models

There are more than 40 models integrated in Capsis : see capsis models.

stand models
diameter class models
distance independant tree models
distance dependant tree models

Social models

-Not available yet

Decision Support

Definition of management interventions

Capsis supports different type of generic interventions :

by age, by height, by diameter class...

Each model can also implements specific intervention mechanisms.

Typical temporal scale of application

The temporal depends of the model.

Types of decisions supported

Decision-making processes and models

Output

Types of outputs

stand level table and graphical outputs showing the temporal changes of its parameters
stand level 2D viewer
stand level 3D viewer

Spatial analysis capabilities

facilitates links to GIS with geotools java library

Abilities to address interdisciplinary, multi-scaled, and political issues

System

System requirements

Operating Systems: Linux / Windows / Mac Os X
Other software needed : Java 1.6

Architecture and major DSS components

Desktop application

Usage

Research level use

Computational limitations

System memory limitation

User interface

Capsis provides :

an interactive graphical user interface
a script mode (without gui) based on groovy

Documentation and support

See Capsis web site : capsis web site

Installation

a free and open source version is available on the web : http://capsis.cirad.fr/capsis/download

References

Cited references

External resources

de Coligny F., 2007. Efficient Building of Forestry Modelling Software with the Capsis Methodology. In: Fourcaud T, Zhang XP, eds. Plant Growth Modeling and Applications. Proceedings of PMA06. Los Alamitos, California: IEEE Computer Society, pp. 216-222.

Revision as of 10:28, 6 April 2010 (view source) Coligny (Talk \| contribs) (→‎Documentation and support) ← Older edit		Revision as of 10:30, 6 April 2010 (view source) Coligny (Talk \| contribs) (→‎External resources) Newer edit →
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		+	* de Coligny F., 2007. Efficient Building of Forestry Modelling Software with the Capsis Methodology. In: Fourcaud T, Zhang XP, eds. Plant Growth Modeling and Applications. Proceedings of PMA06. Los Alamitos, California: IEEE Computer Society, pp. 216-222.