78727 20240109134255.0 doi 10.1002/ldr.2937 sideral 105507 ART-2018-105507 eng Armas Herrera, Cecilia María Universidad de Zaragoza (orcid)0000-0001-6566-6944 Short-term and midterm evolution of topsoil organic matter and biological properties after prescribed burning for pasture recovery (Tella, Central Pyrenees, Spain) 2018 Access copy available to the general public Unrestricted We determined the short- and medium-term effects of prescribed burns on soil organic matter content and biological activity in grazing areas invaded by the shrub Echinospartum horridum (Vahl) Rothm. in the Pyrenees of Huesca (Spain). Soil samples were collected at 0–1, 1–2, and 2–3 cm depths in triplicate just before the burn, immediately after the burn (T0), and 1 and 5 years later (T1 and T5). We analysed the contents of total soil organic C and N, soil respiration, microbial biomass C, and ß-D-glucosidase and acid phosphatase activities. Fire provoked an immediate high decrease in the contents of soil organic C (-40.2%) and N (-26.3%) in the first 3 cm, which were even lower at T5 (-50.3% and -46.5%, respectively). This can be explained as follows: (a) low incorporation of burned organic matter due to removal by wind and run-off; (b) changes in microclimate increasing soil temperature and enhancing mineralization; and (c) a stimulating effect on decomposition due to the release of nutrients. Soil biological activity was affected at T0 in the first 3 cm (-49.3% glucosidase, -48.2% phosphatase, and -54.5% respiration rate). Microbial biomass C content was also affected by fire at T0 (-32.3%) but was close to its initial value at T5. The results suggest that these soils are particularly sensitive to fire. Adjusting the frequency and intensity of the burns is necessary to minimize their impact on the soil and to ensure the suitability of this management practice info:eu-repo/grantAgreement/ES/MINECO/CGL2013-43440-R info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 4.275 2018 ENVIRONMENTAL SCIENCES 54 / 250 = 0.216 2018 Q1 T1 SOIL SCIENCE 5 / 35 = 0.143 2018 Q1 T1 1.437 2018 Development 2018 Q1 Soil Science 2018 Q1 Environmental Science (miscellaneous) 2018 Q1 Environmental Chemistry 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion Martí, Clara Universidad de Zaragoza (orcid)0000-0003-0630-1181 Badía, David Universidad de Zaragoza (orcid)0000-0002-1006-5030 Ortiz Perpiñá, Oriol Universidad de Zaragoza (orcid)0000-0003-3516-5756 Girona García, Antonio Universidad de Zaragoza (orcid)0000-0001-7003-8950 Mora, Juan Luis Universidad de Zaragoza (orcid)0000-0001-8146-0364 5011 705 Universidad de Zaragoza Dpto. CC.Agrar.y Medio Natural Área Producción Vegetal 5011 240 Universidad de Zaragoza Dpto. CC.Agrar.y Medio Natural Área Edafología y Quím.Agríco. 29, 6 (2018), 1545-1554 Land degrad. dev. LAND DEGRADATION & DEVELOPMENT 1085-3278 1046059 http://zaguan.unizar.es/record/78727/files/texto_completo.pdf Preprint 76331 http://zaguan.unizar.es/record/78727/files/texto_completo.jpg?subformat=icon icon Preprint oai:zaguan.unizar.es:78727 articulos driver 2024-01-09-13:32:57 ARTICLE