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首页> 外文OA文献 >Soil Recovery Assessment after Timber Harvesting Based on the Sustainable Forest Operation (SFO) Perspective in Iranian Temperate Forests
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Soil Recovery Assessment after Timber Harvesting Based on the Sustainable Forest Operation (SFO) Perspective in Iranian Temperate Forests

机译：基于伊朗温带森林可持续森林经营（SFO）观测的木材采伐后土壤回收评估

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Minimizing the impact of timber harvesting on forest stands and soils is one of the main goals of sustainable forest operation (SFO). Thus, it is necessary to make an accurate assessment of forest operations on soil that is based on the SFO perspective. The present study was conducted according to SFO principles to investigate the time required for the natural recovery of soil after disturbance by skidding operations in some Iranian forests. The physical, chemical, and biological properties of soil found in abandoned skid trails from different time periods were compared with undisturbed forest soils. The soil bulk density, the penetration resistance, and the microporosity of a 25-year-old skid trail were 8.4–27.4% and 50.4% greater, and the total porosity, macroporosity, and soil moisture were 1.9–17.1% and 4.6% lower than the undisturbed area. In a 25-year-old skid trail, the values of pH, Electrical conductivity (EC), C, N, available P, K, Ca, and Mg, earthworm density, and biomass were lower than in the undisturbed area, and the C/N ratio value was higher than in the undisturbed area. High traffic intensity and slope classes of 20–30% in a three-year-old skid trail had the greatest impact on soil properties. In order to have sustainable timber production, SFO should be developed and soil recovery time should be reduced through post-harvest management operation.
机译：最大限度地减少木材采伐对森林站立和土壤的影响是可持续森林经营（SFO）的主要目标之一。因此，有必要对基于SFO视角的土壤进行准确评估森林行动。本研究根据SFO原则进行，调查在一些伊朗森林中的扰乱后扰动后土壤自然恢复所需的时间。与未受干扰的森林土壤相比，在不同时间段中发现的土壤的物理，化学和生物学特性。 25岁的滑块的土壤堆积密度，渗透性和微孔孔隙为8.4-27.4％和50.4％，总孔隙率，大孔隙度和土壤水分为1.9-17.1％和4.6％比未受干扰的区域。在25岁的SPLID轨迹中，pH值，电导率（EC），C，N，可用P，K，CA和MG，蚯蚓密度和生物质的值低于未受干扰的区域，以及C / N比值高于未受干扰区域。三岁的滑雪道上的高速增长和坡度等级为20-30％，对土壤性质产生了最大的影响。为了拥有可持续的木材生产，应通过收获后管理运作减少SFO，土壤恢复时间应减少。

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