[EN] Mulching treatment is often recommended in order to reduce post-!re erosion and sediment yields, but information concerning their e"ects on soil properties and hence on soil quality is scarce. In the present investigation, the in#uence of straw application on soil quality was evaluated on hillslope shrubland in Saviñao (Lugo, NW Spain) that is susceptible to post-!re erosion (38% slope). In this area, which was a"ected by a medium-high severity wild!re in September 2012, di"erent treatments with wheat straw were applied to the burnt soil in mulch strips (0.8 and 1 Mg ha-1) using quadruplicate 10 m x 40 m plots and compared with the corresponding burnt untreated control. Soil samples were collected from the A horizon (0-2.5 cm depth) at di"erent sampling times for 12 months after the wild!re, and a wide range of physicochemical, chemical and biochemical soil properties (water retention, pH, electric conductivity, total C, 13C, extractable C, water soluble C, soluble carbohydrates, total N, 15N, microbial biomass C, soil respiration, bacterial activity, !-glucosidase, urease and phosphatase activities) were analyzed. $e results showed that the application of straw mulch had a minor in#uence on the post- !re soil quality but, in contrast, the sampling time showed a signi!cant in#uence attributed to shortand medium term changes in soil properties induced by both !re and climatic conditions.