Fire and Aquatic Ecosystems in Forested Biomes of North America
Fire and Aquatic Ecosystems in Forested Biomes of North America
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北美森林生物群落的火灾和水生生态系统
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
R. Gresswell
中科院分区：
文献类型：
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作者：
R. Gresswell
摘要文献综述表明，流域的物理、化学和生物要素与长期气候相互作用，影响火灾状况，这些因素与火灾后的植被镶嵌相一致，与当地尺度的天气相结合，控制着火灾发生后的变化轨迹和大小。与水文过程相关的扰动可能是影响鱼类、底栖大型无脊椎动物和河流系统中硅藻火灾后持久性的主要因素。很明显，鲑鱼进化出了在野火发生频率(10°-102年)时生存的策略，但一个物种的当地种群可能更短暂。栖息地的改变可能对移动性最小的个体生物和本地种群的影响最大，而移动性高的水生生物重新入侵的速度最快。越来越明显的是，在过去的一个世纪里，灭火工作一直在进行。
Abstract Synthesis of the literature suggests that physical, chemical, and biological elements of a watershed interact with long-term climate to influence fire regime, and that these factors, in concordance with the postfire vegetation mosaic, combine with local-scale weather to govern the trajectory and magnitude of change following a fire event. Perturbation associated with hydrological processes is probably the primary factor influencing postfire persistence of fishes, benthic macroinvertebrates, and diatoms in fluvial systems. It is apparent that salmonids have evolved strategies to survive perturbations occurring at the frequency of wildland fires (10°–102 years), but local populations of a species may be more ephemeral. Habitat alteration probably has the greatest impact on individual organisms and local populations that are the least mobile, and reinvasion will be most rapid by aquatic organisms with high mobility. It is becoming increasingly apparent that during the past century fire suppression h...