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fire can
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  fire can
During the recovery a second fire can be detected and there are no signs of self-poisoning by CO.
      
Natural disasters like fire can strongly damage or even may ruin these ancient buildings.
      
What intensity of fire can a fire fighter survive in a reflective shelter
      
Experiments with fires in ducts under forced ventilation conditions indicate that either of two types of fire can occur - oxygen-rich or fuel-rich.
      
Surface fire can modify spatial patterns and self-thinning in pine-oak ecosystems.
      
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The preliminary studies were conducted to elucidate law and characteristics of forest fire incidents, based on the forest fire information of Hebe; province. The studies showed that, in the province, the season easy to cause forest fire was long; serious fires were concentrated in a relative short period ! frequency of fire alarms was high J and all the fire incidsnts were caused by human activities. So that, taking all sorts of measures, strengening fire source control, providing necessary facilities, improving...

The preliminary studies were conducted to elucidate law and characteristics of forest fire incidents, based on the forest fire information of Hebe; province. The studies showed that, in the province, the season easy to cause forest fire was long; serious fires were concentrated in a relative short period ! frequency of fire alarms was high J and all the fire incidsnts were caused by human activities. So that, taking all sorts of measures, strengening fire source control, providing necessary facilities, improving the comprehensive control of forest fire can all be used to reduce the losses caused by forest fire to a minimum.

本文根据河北省森林火灾的材料,对森林火灾的规律与特点进行了初步探讨。结果表明,河北省森林火险期长,高火险期集中,火警频繁,森林火灾的火因均为人为火源。因此,在森林防火工作中,采取多种措施,强化火源管理,辅以必要的森林防火设施设备,提高森林火灾的综合控制能力,就可以将森林火灾的损失控制在最低限度以内。

Fire is an active ecological factor and acts on forest ecosystem frequently with dual nature. On the one hand, fire can burn up forests, do great damage to the forest structure and function and even more destroy the forest ecosystem balance; on the other hand, fire can be regard as the tools and means of forest management. The use of fire can improve forest environment, accelerate the circulation of matter and energy flow. Based on the analysis of those aspects of disturbance and self-reproduction,...

Fire is an active ecological factor and acts on forest ecosystem frequently with dual nature. On the one hand, fire can burn up forests, do great damage to the forest structure and function and even more destroy the forest ecosystem balance; on the other hand, fire can be regard as the tools and means of forest management. The use of fire can improve forest environment, accelerate the circulation of matter and energy flow. Based on the analysis of those aspects of disturbance and self-reproduction, counter-succession or advancesuccession, diversity of plant species, resistance and tolerance of ecosystem as well as self-regulation of ecosystem, etc., the paper dissects the activity of fire in forest ecosystem and points out the five indices above mentioned can be used to determine the nature of fire, evaluate the advantages and disadvantages of fire as well as provide scientific theoretical basis for fire use in forest management.

火是一个活跃的生态因子,经常作用于森林生态系统,而且它的作用具有两重性。一方面火能烧毁森林,严重破坏森林的结构和功能;另一方面火可以作为营林的工具和手段,用火可以改善森林环境,有利于维持和促进森林生态系统的平衡。本文主要从干扰与自我更新、逆演与顺演、种的多样性、群落的稳定性及系统的自我调节功能等五个方面剖析了火在森林生态平衡中的作用规律。并且指出以上五个指标可作为确定火灾性质、评价火在森林生态系统平衡中的作用及开展营林用火的理论依据。

Fire ecosystem is an important normal natural environmental factor. Fire ecologyis a branch of science studying the correlation of changes of interrelated components of e-cosystem after the occurrence of a fire. Fire history is divided into three stages. A centurypassed before fire as a destructive factor was confirmed as a factor of disturbance. Fire e- cology contains the following aspects of research: (1) state of fire in each ecosystem; (2)the tolerance and adaptability...

Fire ecosystem is an important normal natural environmental factor. Fire ecologyis a branch of science studying the correlation of changes of interrelated components of e-cosystem after the occurrence of a fire. Fire history is divided into three stages. A centurypassed before fire as a destructive factor was confirmed as a factor of disturbance. Fire e- cology contains the following aspects of research: (1) state of fire in each ecosystem; (2)the tolerance and adaptability mechanism of plant specics and community; (3) effect of fireon components of an ecosytem; (4) how to use fire as a means to manage ecosgntem.Researches show that different ecosystem has different state of fire. If a plant species candevelop anatomical and propagating mechanism for existence in a cyclic occurrence of fire,then the species will acquire the trait to increase the combustibility of a community throughnatural selection. Fire can produce extensive effects on an ecosystem. Humanity should striveto grasp the law of fire development and have it serve the humanity either for existence or indaily life.

火是生态系统的一个组成部分,火生态学是研究火烧影响及相关问题的学科,本文综述了火生态学的研究历史、研究方法和研究成果。

 
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