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首页> 外文会议>Proceedings of the fire and materials 2015 conference >CLIMATE IMPACT ON FOREST FIRE RISK IN SWEDEN
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CLIMATE IMPACT ON FOREST FIRE RISK IN SWEDEN

机译：瑞典森林火灾的气候影响

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Concern regarding a potential increase in the threat of forest fires in Sweden due to climaternchange has driven research that enables long-term planning for national preparedness. This researchrnconsists of three converging approaches: investigation of forest ecology as it pertains to firernparameters; ignition testing of forest floor fuels native to Sweden; and modelling based both onrnhistorical fires and future meteorology. The results of ignition testing are reported here. Ignition testsrnwere conducted as a function of moisture content of over-wintered roadside grass, maple and birchrnleaves, spruce and pine needles, moss, and humus. The ignition sources were a small open flame, arncigarette, or hot metal particles. Radiation tests were also conducted on a subset of specimens using arncone calorimeter. Pine needles and grass had very similar flame ignition results, with a 50 %rnprobability of ignition (P50) of about 20 % moisture content (dry basis). Moss, humus, and maplernleaves had a P50 of 10 – 12 % moisture content for flame ignition. The P50 for humus with cigaretternignition was about 27 % moisture content. Spruce needles would not burn under any of the testrnconditions. The effects of wind and grass density were also investigated. These test results,rncombined with modelling, will be used to create present and future forest fire scenarios. A workshop,rnin which emergency responders will participate in forest fire simulations, will provide the basis forrnrecommendations to Sweden’s civil contingencies agency (MSB) for future resource allocation andrnlogistics planning.
机译：由于气候变化，瑞典对森林火灾威胁的潜在增加的担忧推动了研究的开展，该研究使得能够为国家防备做出长期规划。这项研究包括三种融合的方法：与火参数有关的森林生态学调查；瑞典原生林地燃料的点火测试；以及基于历史火灾和未来气象学的建模。点火测试的结果在这里报告。根据过冬的路边草，枫树和桦树，云杉和松针，苔藓和腐殖质的水分含量进行了点火测试。点火源是小的明火，香烟或热金属颗粒。还使用arncone量热计对一部分样品进行了辐射测试。松针和草的火焰点火结果非常相似，点火概率（P50）为50％，水分含量约为20％（干基）。苔藓，腐殖质和枫叶的火焰点燃P50为10 – 12％水分。香烟点燃的腐殖质的P50含量约为27％。在任何测试条件下，云杉针都不会燃烧。还研究了风和草密度的影响。这些测试结果与建模相结合，将用于创建当前和将来的森林火灾场景。紧急响应者将参加一次森林火灾模拟研讨会，将为向瑞典民用应急机构（MSB）提出建议，为将来的资源分配和物流规划提供基础。

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