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林火灾变是森林生态系统受到的最主要的灾变之一,为(?)系统的研究林火灾变对森林生态系统的影响奠定基础,文章从生物量、群落演替阶段和生态环境三个方面讨论了林火灾变对森林生态系统的影响。建立了衡量影响程度的数量指标,确定了进行定量研究的基本方法——以生物量的变化为量变,以演替阶段的变化为质变,由量变分析质变。论述了林火灾变与其它灾变间的关联——灾变群与灾变链问题。
The forest fire disaster is one of the most important catastrophes that the forest ecosystem suffered. This study laid the foundation for the systematic study of the impact of the forest fire disaster on the forest ecosystem. From the aspects of biomass, community succession stage and ecological environment Discusses the impact of forest fires on forest ecosystems. The establishment of quantitative indicators to measure the extent of impact, identified the basic methods for quantitative research - to biomass change as a quantitative change, the change of succession stage as a qualitative change, quantitative analysis of qualitative change. Discusses the relationship between forest fires and other catastrophes - catastrophe group and catastrophe chain.