This study aimed to evaluate contrasting organic amendments as a strategy to promote the recovery of biotic and abiotic edaphic conditions central to the reestablishment of soil ecosystem functions at a site in south-central Chile affected by megafires in the 2016–2017 summer season. We analyzed the effects of the application of fresh (poultry and swine manure) and stabilized (compost of agricultural waste origin) organic amendments on microbial parameters, including basal respiration, microbial biomass, the carbon mineralization coefficient, and the microbial metabolic quotient, along with soil physicochemical properties related to soil fertility and stability. All organic amendments improved soil fertility and stimulated soil microbial activity. Fresh amendments, particularly swine manure, promoted the immediate recovery of the microbial conditions evaluated. However, greater mineralization rates and thus presumably shorter periods of carbon (C) source consumption were related to the application of such organic amendments. Soils treated with compost accumulated the most organic carbon and nitrogen, ensuring long-term nutrient release and thus long-term soil function recovery. Choosing the type of organic amendment to use to sustain ecosystem resilience will highly depend on the restoration goals over time.

这项研究旨在评估不同的有机物改良剂，以此作为促进恢复生物和非生物营养条件的战略，这是在智利中南部受2016–2017年夏季大火影响的某个地点重建土壤生态系统功能的中心。我们分析了应用新鲜的（家禽和猪粪）和稳定的（农业废物来源的堆肥）有机修正物对微生物参数的影响，包括基础呼吸，微生物生物量，碳矿化系数和微生物代谢商，以及土壤理化特性与土壤肥力和稳定性有关。所有有机改良剂均可改善土壤肥力并刺激土壤微生物活性。新鲜的改良剂，尤其是猪粪，促进了所评估微生物状况的立即恢复。但是，更高的矿化率以及由此而来的碳（C）源消耗时间可能与这种有机改良剂的应用有关。用堆肥处理过的土壤累积了最多的有机碳和氮，确保了长期的养分释放，从而长期恢复了土壤功能。选择用于维持生态系统复原力的有机改良剂的类型将在很大程度上取决于恢复目标。确保长期养分释放，从而长期恢复土壤功能。选择用于维持生态系统复原力的有机改良剂的类型将在很大程度上取决于恢复目标。确保长期养分释放，从而长期恢复土壤功能。选择用于维持生态系统复原力的有机改良剂的类型将在很大程度上取决于恢复目标。