Difference between revisions of "Capsis"

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Revision as of 17:57, 3 March 2010 (view source) Coligny (Talk | contribs) ← Older edit		Revision as of 12:21, 4 March 2010 (view source) Coligny (Talk | contribs) Newer edit →
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	* [[ETÇAPOptimization]]		* [[ETÇAPOptimization]]
	* [[ETÇAPKombineOptimization]]		* [[ETÇAPKombineOptimization]]
−		+	</div>
	== Data and data models ==		== Data and data models ==
	=== Typical spatial extent of application  ===		=== Typical spatial extent of application  ===
−	The normal spatial application level of ETÇAP is the forest level with various stands.  Yet the spatial resolution of the model is the stand, the smallest identifiable unit of forest area.	+	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  ===		=== Forest data input  ===
−	ETÇAP input information are inventory data that can be imported from files with .xls or .mdb extensions with a specific format.	+	Capsis input information are
−	The input data required depends on the characteristics of the stand. Three groups of data are needed for the model; the current area of the stands generated by a GIS software, current status of each stand measured with inventory sheets for per area growth and yield characteristics (in each plot: the plot size, diameters of all stems, ages of some stems, age and dominant height for a number of stems, and ten-last-years growth for  some trees) and the other support tables (volume table, empirical yield table, site index table, product assortment table and financial value table) characteristics	+
−	In order to allow spatial layout of a harvest schedule for visualization and generation of maps, compartments, forest stratifications and analysis areas have to be set and related to each polygon (a sub-compartment =stand) with geographic files	+	* inventory data that can be imported from files
		+	* simulated data calcultated by specific algorithms
−	If necessary describe other types of required data (economic, social)
	=== Type of information input from user (via GUI) ===		=== Type of information input from user (via GUI) ===
−	Forest management strategies with specific objectives and constraints have to be developed as shown in the user interface. More than one goal may be selected to address multi-objective management of forests. The indicated targets as management objectives are both yield-economic goals and conservation targets.	+
		+	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 ==		== Models ==
	=== Forest models ===		=== Forest models ===
−	Models implemented in ETÇAP simulate  silvicultural treatment schedules according to the stand variables previously given based on both optimization and simulation techniques.	+
−	Currently ETÇAP has implemented models for the management of either even-aged, uneven-aged, pures or mixed forest stands of any species that have the growth and yield data	+	There are more than 40 models integrated in Capsis : see [http://capsis.cirad.fr/capsis/models capsis models].
		+
		+	* stand models
		+	* diameter class models
		+	* distance independant tree models
		+	* distance dependant tree models
		+
		+
	=== Social models  ===		=== Social models  ===
Line 93:		Line 107:
	=== Definition of management interventions ===		=== Definition of management interventions ===
−	The user lays out the alternative management prescriptions as sequences of silvicultural treatments; how, when (time of harvest, regeneration methods, thinnings, etc.) and where (a stand or a contiguous group of stands) the treatments could be conducted in order to achieve the previously chosen management targets.	+
		+	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 ===		=== Typical temporal scale of application ===
−	[[Strategic]] and [[tactical planning]]	+
		+	The temporal depends of the model.
	=== Types of decisions supported  ===		=== Types of decisions supported  ===
−	* Management level	+
−	** Strategic decisions	+
−	** Operating control decisions	+
−	* Management function	+
	=== Decision-making processes and models ===		=== Decision-making processes and models ===
−	* [[Traditional simulation]]
−	* [[Simulated annealing]]
−	* [[Random ascent]]
−	* [[Linear programming]]
−	</div>
	== Output ==		== Output ==

---

Revision as of 12:21, 4 March 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.

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

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 : vapsis 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