Pyrological Regimes and Dynamics of the Southern Taiga Forests in Siberia
Pyrological Regimes and Dynamics of the Southern Taiga Forests in Siberia
复制标题
西伯利亚南部针叶林的热学状况和动态
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
V. Furyaev
中科院分区：
文献类型：
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作者：
V. Furyaev
需要调查火灾在泰加森林形成中的作用，以估计和预测森林资源。我们关于火在森林形成过程中的作用的复杂研究系统涉及确定不同复杂程度的自然景观复合体(NLC)中的火灾复发和森林火灾发生率(Furyaev，1988)。在这个系统中，分析了影响相、地理森林区块(GFB)、地理位置(GL)和景观的热力状况的因素组合。在过去的三个世纪中，NLC内的平均火灾重现率(=平均火灾返回间隔[MFRI])被认为是火区的主要指标。火灾复发是多年干旱发生的客观指标，特别是NLC生态系统、林分替代火的强度范围，以及取决于植被演替和火源可获得性的重复火灾发生。火返间隔对应于不同NLCS极端火季的平均频率，这对于理解、解释和预测森林形成过程是非常重要的。森林火灾多年平均比率(即被火覆盖的面积)被用作描述火区的一个辅助指标。
Investigations of the role of fire in the taiga forest formation are required for estimating and predicting forest resources. Our system of complex study of the role of fire in the forest formation process involves the determination of fire recurrence and the rate of forest fires in natural landscape complexes (NLC) of different complexity ranks (Furyaev 1988). In this system, combinations of factors are analyzed that are responsible for the pyrological regime of a facies, geographical forest blocks (GFB), geographical localities (GL), and landscape. The mean fire recurrence (= mean fire return interval [MFRI]) within a NLC over the past three centuries is considered as the major index of the pyroregime. Fire recurrence is an objective indicator of multi-year drought occurrence, particular NLC ecological regimes, intensity range of stand-replacement fires, as well as repeated fire occurrence depending on vegetation succession and the availability of fire sources. Fire-return intervals correspond to the mean frequency of extreme fire seasons in different NLCs, which is very important for the understanding, interpretation, and prediction of the forest formation process. Average multi-year rates of forest fires (i.e. area covered by fires) is used as a subsidiary index for characterizing a pyroregime.