Use of poultry manure and plant cultivation for the reclamation of burnt soils

Short‐ and medium‐term evolution of soil properties in Atlantic forest ecosystems affected by wildfires

“…The loss of soil in a rain simulator ranged from 2·4 and 3·1 g m −2 min −1 , and from 5·0 to 6·7 g m −2 min −1 , in the unburnt and the burnt soils, respectively, showing that the burning notably decreased the aggregate stability measured as loss of soil. This was mainly attributed to the combustion of the SOM, in line with the results obtained by other authors (Giovannini et al ., 1988; Soto et al ., 1991; Vázquez et al ., 1996; Kavdir et al ., 2005), and also to the susceptibility of the bare soil surface and hence of ashes and aggregates to the impact of the raindrops, the effect being temperature dependent. In contrast, no effect, or increase, in aggregate stability was observed by some authors after low severity wildfires or prescribed fires (Almendros et al ., 1984; Díaz‐Fierros et al ., 1987; Soto et al 1991), which they attributed to the lack of combustion of the SOM and/or to an increase in both stability and maturity of the humus at the low temperatures reached during the soil heating.…”

“…These results show that the soil properties related to SOM content favoured the aggregate stability, which probably contributed to reduce runoff and erosion processes in the surface horizons of the burnt soils that Díaz-Fierros et al (1982) and Soto et al (1991) related with the disfavoured aggregate stability showed by the soils after high severity wildfires. According to Vázquez et al (1996) and Villar et al (2004), this negative effect could be greatly attenuated by soil protection practices, such as the implantation of herbaceous vegetation (gramineous and leguminous) combined with the application of organic manures that fixes the ash layer, improves soil structure and reduces soil loss after wildfires. Due to the direct relationship between SOM and soil quality in the study soils, the evolution of the total organic C and total N merits particular attention.…”

Evaluation of legumes and poultry manure for the early protection of burnt soils .

“…The increased post-fire soil erosion risk, closely related with the proportion of bare soil (Vega et al 2005), continues to be a threat until vegetation cover has recovered (Taskey et al 1988). As wildfires can drastically reduce the soil seeds bank, natural re-vegetation of burnt soils is delayed allowing to losses of ashes and soil (Chandler et al 1983;Casal 1992;Faraco et al 1993;Vázquez et al 1996). Therefore, soil re-vegetation must be carried out as soon as possible after wildfire to reduce soil damage (Vázquez et al 1996;De Luis et al 2003).…”

“…As wildfires can drastically reduce the soil seeds bank, natural re-vegetation of burnt soils is delayed allowing to losses of ashes and soil (Chandler et al 1983;Casal 1992;Faraco et al 1993;Vázquez et al 1996). Therefore, soil re-vegetation must be carried out as soon as possible after wildfire to reduce soil damage (Vázquez et al 1996;De Luis et al 2003). Due to its beneficial effects on key soil characteristics (soil aggregation, microbial mass and activity, nutrient cycles, stabilization of the ash layer, etc.)…”

Αξιολόγηση του παραγωγικού δυναμικού και της αισθητικής αξίας του Lotus corniculatus L. για αναβάθμιση του λιβαδικού τοπίου

“…Πολλοί ερευνητές εισηγούνται τη χρήση του Lotus corniculatus L για αποκατάσταση υποβαθμισμένων από τη φωτιά εδαφών (Egawa and Nonaka 1980, Vazquez et al 1996, Hiroshi et al 2002, Blumenthal et al 2002.…”