کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4379168 | 1617561 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Three types of power-law distribution of forest fires in Japan
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Study on the forest-fire distribution is not only a phenomenological insight of forest ecological dynamics, but also essential for developing forest-fire danger rating method and system. In this paper, three types of power-law characteristics of forest fires are investigated. The first one is the distribution of fire areas. The frequency-area distribution is found obeying good power-law relation that is invariant with time. The second one is the distribution of fire intervals. It is indicated that the frequency-interval distribution of forest fires in Japan is also accord with power law. What is the most interesting is that the frequency-interval distribution is a power law with periodic change, different to that of frequency-size distribution. The third one is the distribution of fire probability against population density. There is positive-exponent power-law relation between fire probability and population density. The results discussed in this paper are expected to promote the forest-fire danger rating method and are helpful to understand the ecological action of forest fires.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Modelling - Volume 196, Issues 3â4, 25 July 2006, Pages 527-532
Journal: Ecological Modelling - Volume 196, Issues 3â4, 25 July 2006, Pages 527-532
نویسندگان
Song Weiguo, Wang Jian, Satoh Kohyu, Fan Weicheng,