Chinese Journal of Applied Ecology
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WANG San, NIU Shu-kui, LI De, WANG Jing-hua, CHEN Feng, SUN Wu
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Abstract: In order to understand the effects of fuel loadings spatial distribution on forest fire kinds and behaviors, the canopy fuels and floor fuels of Pinups yunnanensis forests with different canopy density, diameter at breast height (DBH), tree height, and stand age and at different altitude, slope grade, position, and aspect in Southwest China were taken as test objects, with the fuel loadings and their spatial distribution characteristics at different vertical layers compared and the fire behaviors in different stands analyzed. The relationships between the fuel loadings and the environmental factors were also analyzed by canonical correspondence analysis (CCA). In different stands, there existed significant differences in the vertical distribution of fuels. Pinus yunnanensisoakSyzygium aromaticum, Pinus yunnanensisoak, and Pinus yunnanensis forests were likely to occur floor fire but not crown fire, while Pinus yunnanensisPlatycladus orientalis, Pinus yunnanensisKeteleeria fortune, and Keteleeria fortunePinus yunnanensis were not only inclined to occur floor fire, but also, the floor fire could be easily transformed into crown fire. The crown fuels were mainly affected by the stand age, altitude, DBH, and tree height, while the floor fuels were mainly by the canopy density, slope grade, altitude, and stand age.
WANG San, NIU Shu-kui, LI De, WANG Jing-hua, CHEN Feng, SUN Wu . Vertical distribution of fuels in Pinus yunnanensis forest and related affecting factors.[J]. Chinese Journal of Applied Ecology.
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URL: https://www.cjae.net/EN/abstract/abstract10568.shtml
https://www.cjae.net/EN/Y2013/V24/I2/331