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首页> 外文期刊>Open Journal of Ecology >Salvage logging versus natural regeneration post-fire practices in a forest: Soil chemical and microbial aspects
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Salvage logging versus natural regeneration post-fire practices in a forest: Soil chemical and microbial aspects

机译：森林中的打捞伐木与自然再生后的做法：土壤化学和微生物方面

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The increase in forest-wildfire events around the world has revived the old debate regarding the practice of salvage logging and its effectiveness in comparison to the unlogged, natural regeneration of burned forests. Since the logging of burned trees may have undesirable outcomes in soil systems, such as soil compaction and nutrient losses, these changes could further cause disturbances to soil microbial-community activity. The aim of this study was to examine chemical and biological changes in soil under two post-fire practices: salvage logging and unlogged, natural regeneration of burned areas, in the recently burned Byria Forest in Israel. Results indicated that salvage logging had a short- lived effect on soil chemical and biological properties that was confined mostly to the first year after logging. Soil moisture was greatly affected by salvage logging, and drier conditions were found in the logged compared to the unlogged burned areas. Moreover, logging had a negative effect on microbial biomass, with reduced biomass in the logged compared to unlogged areas, which was more evident during the first year after fire. These findings support the recommendations in the literature to postpone post-fire practices such as logging or, in turn, to combine the two practices in order to create a mosaic of burned-logged and burned-naturally regenerated areas.
机译：与未砍伐的自然燃烧森林相比，世界范围内森林大火事件的增加使人们对救助伐木的实践及其有效性的争论重新开始。由于砍伐树木的砍伐可能会在土壤系统中产生不良后果，例如土壤压实和养分流失，因此这些变化可能会进一步干扰土壤微生物群落活动。这项研究的目的是在两次火灾后的实践中研究土壤的化学和生物变化：在以色列最近被烧毁的拜里亚森林中，进行打捞和未砍伐，自然燃烧的燃烧区域。结果表明，打捞伐木对土壤化学和生物特性的影响很短，主要限于伐木后的第一年。挽救性伐木对土壤水分的影响很大，与未伐木的燃烧区相比，伐木中发现了更干燥的条件。此外，伐木对微生物生物量有负面影响，与未伐木区域相比，伐木区域的生物量减少，这在火灾后的第一年更为明显。这些发现支持了文献中的建议，以推迟诸如采伐之类的火灾后实践，或者反过来将这两种实践结合起来，以创建一个由燃木和燃木自然再生区组成的马赛克。

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