油松林地表可燃物类型和径级对平衡含水率和时滞的影响
Effects of surface fuel types and diameter class on equilibrium moisture content and time-tag in Pinus tabuliformis forest
[目的]对不同类型、不同径级的地表可燃物的平衡含水率和时滞变化特征进行分析,从而为地表可燃物的科学管理提供理论依据。[方法]在油松林中采集不同径级的枯枝、半腐殖质和松针等地表可燃物,在恒定温湿度的条件下测定各可燃物的平衡含水率和时滞,并通过多重比较法分析可燃物种类和径级大小分别对平衡含水率和时滞的影响。[结果]地表可燃物平衡含水率和时滞受到可燃物种类的强烈影响,半腐殖质的平衡含水率和时滞均为最高,并显著高于松针和枯枝。此外,平衡含水率和时滞均随着…查看全部>>
[Objective]This paper aims to analyze the equilibrium moisture content and time-tag variation characteristics of different types and different diameter classes of surface fuels,so as to provide theoretical basis for scientific management of surface fuels.[Methods]The surface fuels such as dead branches of different diameter classes,semi-humus and pine needles were collected from Pinus tabuliformis forest.The equilibrium moisture content and time-lag of each …查看全部>>
孙永明;贺洪鑫;
surface fuels diameter class equilibrium moisture content time-lag Pinus tabuliformis forest
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