12 research outputs found

    Una exposición virtual muestra una investigación sobre los comunales pastoriles de Castril, Santiago y Pontones.

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    Entre 2017 y 2019, el proyecto EXPLORA (Patrimonialización socio-ecológica en comunales de España y Marruecos), constituido por un equipo interdisciplinar liderado por investigadores de la Universitat Autònoma de Barcelona en colaboración estrecha con la Estación Experimental del Zaidín-CSIC de Granada, llevó a cabo una investigación sobre la organización comunal de los pastos de montaña de Castril (Granada), Santiago de la Espada y Pontones (Jaén). Los resultados de este trabajo forman parte ahora de una exposición temporal en el Museo Virtual de Ecología Humana. Inaugurada en marzo de este año, estará disponible en la red de manera permanente, e incluye tanto fotografías como material audiovisual. Su título es Territorios de vida en el filo. Comunales pastoriles de las montañas del Mediterráneo en el siglo XXI

    Protocolo para evaluar la severidad de la quema por observación directa del campo

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    Potential of wild annual legumes for mountain pasture restoration at two silvopastoral sites in southern Spain: promising species and soil-improvement techniques.

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    This study evaluates the potential for pasture improvement and restoration at two silvopastoral sites. We used a total of 16 wild legume species under different management systems (rhizobial inoculation, mycorrhizal inoculation, sheep penning, and sheep penning with mycorrhizal inoculation), at two mountain sites in Sierra Nevada Natural Park (Granada, southern Spain). The first site, Soportújar, had higher soil fertility and rainfall than the second, Lanjarón. Forage yields in Soportújar ranged from 265 to 8970 kg DM ha¿1, Vicia amphicarpa, Vicia monantha, Vicia disperma and Lathyrus clymenum being the most productive species. Mycorrhizal inoculation resulted in higher forage yields for Lens nigricans, V. disperma and Vicia lutea. Seed yields were low, ranging from 5.9 to 1234 kg ha¿1. Forage yields in Lanjarón were lower, ranging from 46 to 1415 kg DM ha¿1; and the most productive species were V. monantha, V. disperma, Lathyrus cicera and Medicago rigidula. Sheep penning alone and together with mycorrhizal treatment resulted in greater forage yields for most of the species studied, although differences were only significant for V. disperma, V. monantha and Lathyrus sphaericus. Seed yields ranged from 0.4 to 60 kg ha¿1. In conclusion, we recommend V. monantha, V. disperma and L. cicera followed by V. amphicarpa and L. clymenum (in wetter more fertile sites) and M. rigidula (in drier sites), as they seem to be the best adapted to the pedoclimatic conditions of Sierra Nevada Natural Park. Increasing nutrients in the soil (by sheep penning) and promoting nutrient assimilation (by mycorrhizal inoculation) may be effective strategies for increasing pasture biomass in silvopastoral sites.This work has been funded by the National Parks Autonomous Agency (OAPN, Spanish Ministry of Agriculture, Food and Environment) through the project “Investigaciones sobre la flora forrajera natural en mejoras de pastos, restauración forestal y silvicultura preventiva con ganado: una experiencia piloto en Sierra Nevada” (Ref. 748). We would like to thank Baltasar del Pozo for managing the sheep penning, Mycovitro who donated the Glomigel, and Manuel Fernández-López and Pablo Villadas who provided the rhizobium inocula for this study

    El uso combinado de nuevas tecnologías y muestreos tradicionales en la evaluación de los sistemas silvopastorales

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    Comunicación oral presentada en: 60ª Reunión Científica de la Sociedad Española de Pastos, Viejas y nuevas propuestas de pastoreo en los pastos forestales. Viérnoles, Cantabria; 12.14 septiembre (2022

    Effect of pyric herbivory in a plant community of gorse (Genista scorpius L.) and steppe grass (Macrochloa tenacissima Kunt) in Southeast Spain

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    Conferencia Invitada presentada en: Fire Ecology Across Boundaries: connecting science and management. Florencia 4-7 octubre (2022

    Herbivorismo pírico y quemas prestritas: efecto en el control de la carga de combustible y la biodiversidad vegetal

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    Resumen de la comunicación oral presentada en el XV Congreso Nacional de la Asociación Española de Ecología Terrestre (AEET). "El valor de la naturaleza para una sociedad global" Celebrado en Plasencia, Cáceres del 18-21 Octubre (2021

    Vegetation cover estimation in semi-arid shrublands after prescribed burning: field-ground and drone image comparison

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    The use of drones for vegetation monitoring allows the acquisition of large amounts of high spatial resolution data in a simple and fast way. In this study, we evaluated the accuracy of vegetation cover estimation by drones in Mediterranean semi-arid shrublands (Sierra de Filabres; Almería; southern Spain) after prescribed burns (2 years). We compared drone-based vegetation cover estimates with those based on traditional vegetation sampling in ninety-six 1 m2 plots. We explored how this accuracy varies in different types of coverage (low-, moderate- and high-cover shrublands, and high-cover alfa grass steppe); as well as with diversity, plant richness, and topographic slope. The coverage estimated using a drone was strongly correlated with that obtained by vegetation sampling (R2 = 0.81). This estimate varied between cover classes, with the error rate being higher in low-cover shrublands, and lower in high-cover alfa grass steppe (normalized RMSE 33% vs. 9%). Diversity and slope did not affect the accuracy of the cover estimates, while errors were larger in plots with greater richness. These results suggest that in semi-arid environments, the drone might underestimate vegetation cover in low-cover shrublands. © 2022 by the authors.This research was funded by Interreg Sudoe Programme, European Regional Development Fund, European-Union, grant number SOE2/P5/E0804; by MICINN through European Regional Development Fund (SUMHAL, LIFEWATCH-2019-09-CSIC-13, POPE 2014-2020); and by Ministry of Science and Innovation (MCIN/AEI/10.13039/501100011033) grant number PID2020-116786RB-C32

    Efecto de las quemas prescritas y del herbivorismo pírico en los parámetros estructurales y florísticos de matorrales semiáridos con distintas coberturas vegetales: evolución a lo largo de dos años

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    Resumen de la conferencia invitada presentada en: 8º Congreso Forestal Español. Lleida 21 junio a 1 de julio (2022)Este trabajo ha sido financiado por el Programa Interreg Sudoe dentro del proyecto Open2preserve (SOE2/P5/E0804) (https://open2preserve.eu). Asimismo, se recibió financiación del MICINN (fondos FEDER) dentro del proyecto LifeWatch ERIC - SUMHAL (SUMHAL, LIFEWATCH-2019- 09-CSIC-13, POPE 2014-2020) (https://lifewatcheric-sumhal.csic.es)

    Investigaciones sobre la flora forrajera natural en mejoras de pastos, restauración forestal, y silvicultura preventiva con ganado: una experiencia piloto en Sierra Nevada

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    Some of the results of the project funded by the OAPN on the natural forage flora of the Sierra Nevada Natural Area are presented, in relation to its possibilities of technical utilization in the improvement of natural pastures, restoration of degraded areas, management and protection of the Mediterranean rangelands. This study focuses on a pilot area of the Natural Area (Lanjarón) affected by a fire (2005) of 3,425 ha. Its general objective has been to collaborate in the restoration plan of the area and to incorporate to the forestry management some activities for preventive silviculture with livestock management; and the specific objectives were: to select legumes from natural pastures, analyze their nutritional characteristics, their germination limitations, and elucidate the incidence of different fertilization methods (including micro-organisms of the rhizosphere) in the establishment of the selected species, all of which in field conditions. For this purpose, «seed sources» have been georeferenced in the territory in which to collect the species, seed scarification techniques has been tested, analysis of their nutritional value (classical and antioxidants) has been carried on, nodular bacteria have been isolated, production (forage and seeds) has been estimated, testing different techniques of soil fertilization (sheep penning, mycorrhization and bacterial inocula), in order to ensure its establishment in the field. The results showed higher nutritional value of the genera Vicia and Lathyrus, although Trifolium cherleri presented good content of total and non-enzymatic antioxidants; threshing is the most effective method to promote germination; the rhizobia proposed for fertilization trials are Rhizobium leguminosarum and Sinorhizobium meliloti; sheep penning is the most effective method of fertilization and the genus Vicia was the most productive (forage and seeds); for this reason and for its greater nutritional value we consider that the species of this genus are the most appropriate for the ecological restoration from the rangelands
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