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栖霞山老龄枫香林凋落物载荷量及潜在燃烧性分析

Forest Fire Prevention(2019)

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Abstract
以栖霞山老龄枫香林为研究对象,通过野外地表凋落物分层采集及室内分析测定,研究了老龄枫香林地表凋落物载量特征和热值为参数的燃烧特征.结果表明,老龄枫香林地表凋落物含水率阴坡高于阳坡、下层高于上层;凋落物载荷量阳坡高于阴坡,且中层>下层>上层;不同分层的热值上层>中层>下层,凋落物总潜在能量阳坡比阴坡高出32.7%,中层潜在能量高于上层和下层.老龄林枫香林凋落物热值低于不同气候区的其他植物干叶片,但地表凋落物总载荷量较高,具有一定的火灾风险.定期清理或计划烧除是有效降低地表火灾风险的有效途径.
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