Skip to Main Content
A hierarchical fire frequency model to simulate temporal patterns of fire regimes in LANDISAuthor(s): Jian Yang; Hong S. He; Eric J. Gustafson
Source: Ecological Modelling. 180: 119-133
Publication Series: Scientific Journal (JRNL)
Station: North Central Research Station
PDF: View PDF (391.83 KB)
DescriptionFire disturbance has important ecological effects in many forest landscapes. Existing statistically based approaches can be used to examine the effects of a fire regime on forest landscape dynamics. Most examples of statistically based fire models divide a fire occurrence into two stages--fire ignition and fire initiation. However, the exponential and Weibull fire-interval distributions, which model a fire occurrence as a single event, are often inappropriately applied to these two-stage models. We propose a hierarchical fire frequency model in which the joint distribution of fire frequency is factorized into a series of conditional distributions. The model is consistent with the framework of statistically based approaches because it accounts for the separation of fire ignition from fire occurrence. The exponential andWeibull models are actually special cases of our hierarchical model. In addition, more complicated non-stationary temporal patterns of fire occurrence also can be simulated with the same approach. We implemented this approach as an improved fire module in LANDIS and conducted experiments within forest landscapes of northernWisconsin and southern Missouri. The results of our experiments demonstrate this new fire module can simulate a wide range of fire regimes across heterogeneous landscapes with a few parameters and a moderate amount of input data. The model possesses great flexibility for simulating temporal variations in fire frequency for various forest ecosystems and can serve as a theoretical framework for future statistical modeling of fire regimes.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationYang, Jian; He, Hong S.; Gustafson, Eric J. 2004. A hierarchical fire frequency model to simulate temporal patterns of fire regimes in LANDIS. Ecological Modelling. 180: 119-133
Keywordsfire frequency model, fire regime, hierarchical modeling, LANDIS
- Using neutral models to identify constraints on low-severity fire regimes.
- Comparing effects of fire modeling methods on simulated fire patterns and succession: a case study in the Missouri Ozarks
- A neutral model of low-severity fire regimes
XML: View XML