LANDIS 6.0
HOME 6.0 – HOME	Previous versions of LANDIS use 10-year time step to simulate long term forest dynamics. This coarse resolution may not be adequate to capture finer temporal events such as harvesting and natural disturbances. LANDIS 6.0 uses variable time step ranges from 1 to 10 years. Thus it can simulate forest dynamics using longer time steps (e.g., 5-10 years) and disturbance and management using shorter time steps (e.g., 1-3 years). In addition, the effects of environmental change such as climate change can be incorporated by using new functions that modify species establishment probabilities. LANDIS 6.0 preserves the ecological design of LANDIS 4.0 and 5.0. New features · Variable time steps ranges from 1 to 10 years and can be specified for various modules. · New functions of inter-year variability of species establishment probability as uniform, pulse and random forms, or user-defined input file. · Environmental change such as climate change effects can be directly incorporated in LANDIS 6.0 simulation. · Map input and output is upgraded from 8 bits to 16 bits; maps of more than 16 bits are supported. · Compatible to LANDIS 5.0 and LANDIS 4.0 input data. · New LV/LI interface for reading and displaying 16 bit maps. · To optimize memory use, the longevity of species is limited within 352 years. Comparison of computation speed Download excel file to estimate computing time (Speed Test) Impact of environment on SEC (Species Establishment Coefficients) · Uniform SEC The environment remains constant and, therefore, SEC does not change throughout the simulation. · Pulse SEC The environment fluctuates (e.g. drought) with a cycle of 3-5 years. In a cycle (randomly selected 3-5 years), it improves the species establishment, and in other period it decreases species establishment. · Random SEC The environment fluctuates in a random fashion (e.g. drought). Variable time step Time step in LANDIS 6.0 is varied from 1 to 10 years. The shorter time step is suitable for short-term simulation and the longer time step is suitable for long-term simulation.
INTRODUCTION
MODEL COMPONENTS
PUBLICATIONS
DOCUMENTS
ACKNOWLEDGEMENT
DOWNLOAD(32bit) DOWNLOAD(64bit)
Contact Information
Hong S. He, Ph.D. School of Natural Resources University of Missouri-Columbia 203 Anheuser-Busch Natural Resources Building Columbia, MO 65211-7270 U. S. A. Tel: 573 882-7717 Fax: 573 882-1977 heh@missouri.edu