Difference between revisions of "LANDIS"
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Revision as of 20:28, 19 September 2010
General System description
System Name: LANDIS
Brief overview
LANDIS is a spatially explicit landscape simulation model. It models natural processes, such as fire, wind, and insect disturbance; succession, and seed dispersal, as well as forest management.
Contents
Scope of the system
The purpose of LANDIS is to predict forest landscape change over long time periods. LANDIS was developed because previous forest simulation models were not suited for larger areas. Spatially explicit computer simulation of entire landscapes requires simulation at appropriate spatial resolution and level of mechanisms and processes that are modelled.
LANDIS is a spatially explicit landscape simulation model. It models natural processes, such as fire, wind, and insect disturbance; succession, and seed dispersal, as well as forest management. LANDIS is raster-based and tracks only presence or absence of tree species in a given age class. Disturbance events are simulated stochastically based on mean return intervals and disturbance size. [1]
System origin
Support for specific issues
- Landscape planning
Support for specific thematic areas of a problem type
- Silvicultural
Capability to support decision making phases
Related systems
- LDAVI (LANDIS ArcView Interface) is an extension for ArcView 3.1 on Windows NT, that allows for convenient display of LANDIS output.
Data and data models
Typical spatial extent of application
- Regional
- Multi-owner forest
- Single-owner forest
Forest data input
- Stand
Type of information input from user (via GUI)
- Biophysical
Social and economic impacts must be inferred from these spatially explicit estimates of biophysical change. [Mowrer 1997]
Models
Forest models
- Silvicultural
- Climate impacts
- Insects/Disease
- Fire
Social models
Decision Support
Definition of management interventions
[Define what is available for the manager to intervene in the forest: time of harvest, plantations, thinnings, reconversions...Existence of prescription writer, simple enumeration of all possibilities, scenario simulation , etc.]
Typical temporal scale of application
[Define the temporal scale of the application: E.g., operational and immediate level, Tactical planning (short term) and strategic level.]
Types of decisions supported
Decision-making processes and models
- Simulation
Output
Types of outputs
Spatial analysis capabilities
Abilities to address interdisciplinary, multi-scaled, and political issues
System
System requirements
Operating systems:
Development status: Prototype being applied
Architecture and major DSS components
[Describe the basic architecture of the system in software and hardware. Desktop client-server, web based, as well as the integration with available systems. Basic data flow, focusing on retrieval of required input and propagation and implementations of decisions. Mention its modular and scalability capabilities.]
Usage
[Describe the level of use: Research level use, Industry use, Government use.]
Computational limitations
[Describe the system limitations: e.g. number of management units, number of vehicles, time horizon.]
User interface
User interface quality:
Complexity of system / user interface: Using this program requires a substantial investment in learning the details of the software.
Documentation and support
Support: A bulletin board for LANDIS users is available at: http://ash.forest.wisc.edu/cgi-bin/users/YaBB.pl
Installation
Prerequisite knowledge needed: This software is not designed for mass consumption. Successful application is probably best accomplished through a team that includes individuals with working knowledge of UNIX systems, C and C++ language, GIS packages, forest vegetation dynamics, associated resource interactions, and forest planning. [Mowrer]
Cost: Not priced
Demo:
References
Cited references
External resources
Website: http://www.landis-ii.org/
Publications: http://www.landis-ii.org/documentation/PublicationsPage
