Long-Term Spatial Patterns Created by Fire: a Model Oriented Towards Boreal Forests

Long-Term Spatial Patterns Created by Fire: a Model Oriented Towards Boreal Forests
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DOI:
10.1071/wf9950025
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发表时间:
1995
影响因子:
3.1
通讯作者:
A. Ratz
A. Ratz
中科院分区:
农林科学3区
文献类型:
--
作者:
A. Ratz

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火灾是构成北方森林的最重要因素之一。建立了基于元胞自动机方法的空间模拟模型,以深入了解演替阶段的空间模式。比较两种情况:1. 持续可燃性和 2. 在连续过程中可燃性增加。空间结构很大程度上取决于年龄依赖性可燃性的具体形式。通过五种不同的测量方法对模型产生的单场火灾的精细结构进行了分析,并且与经验证据相一致。
Fire is one of the most important factors structuring boreal forests. A spatial simulation model based on a cellular automata approach was built to obtain insights into the spatial pattern of successional stages. Two scenarios are compared: 1. constant flammability and 2. flammability increasing during succession. Spatial structure strongly depends on the specific form of age-dependent flammability. The fine structure of single fires generated by the model is analyzed by five different measures and is in agreement with empirical evidence.