89965 20240109134256.0 doi 10.1016/j.scitotenv.2020.139121 sideral 117548 ART-2020-117548 eng Badía Villas,David Universidad de Zaragoza (orcid)0000-0002-1006-5030 Soil-geomorphology relationships determine the distribution of the main subalpine grasslands in the Central Pyrenees (NE-Spain) 2020 Access copy available to the general public Unrestricted The two most widely extended mountain grasslands in Europe (Nardus-mat grasslands and chalk grasslands) are distributed forming complex patterns. In the Ordesa and Monte Perdido National Park Central Pyrenees, NE-Spain), they grow as secondary pastures within the treeline ecotone at the subalpine belt. This work aims to show the influence of soil properties on the spatial distribution of these pastures, under a dynamic geomorphology. Soils are sampled under both grasslands, which grow on different cumulative levels: Nardus-mat grasslands in the upper level (L1) and chalk grasslands in the lower level (L2). Soils in L1 have a significantly higher acidity, lower soluble ions and exchangeable calcium content than those in L2, reflecting a more intense leaching process, consistent with a longer period of slope stability. Qualitative differences are detected in the soil organic matter of the soil, using carbon and nitrogen isotopes, lighter in L2 soils than in L1 soils, due to a higher proportion of legumes growing in L2 (chalk grasslands). Soils in L1 and L2 shared many physical properties, such as a fine and homogeneous texture in the whole rofile (silty clay or silty clay loam), and high aggregate stability and porosity in the topsoil. In contrast, the soils in L2 are shallower than in L1, which reduces their water-holding apacity. The soil is classified as Orthoeutric Cambisol (Clayic, Humic) in L1 but its rejuvenation, by gully erosion, transforms it into an Hypereutric Leptosol (Loamic, Ochric) in L2 (Typic Haplocryept and Lithic Haplocryept, respectively by Soil Taxonomy system). Definitely, the distribution of both grasslands for the studied area is linked to two cumulative levels of different ages, which in turn is strongy related to different soil properties. info:eu-repo/grantAgreement/ES/DGA/S51-17R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 7.963 2020 ENVIRONMENTAL SCIENCES 25 / 273 = 0.092 2020 Q1 T1 1.794 2020 Environmental Chemistry 2020 Q1 Waste Management and Disposal 2020 Q1 Pollution 2020 Q1 Environmental Engineering 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Buendia García, Lucía Longares Aladrén, Luis Alberto Universidad de Zaragoza (orcid)0000-0002-9558-1308 Martí-Dalmau, Clara Universidad de Zaragoza (orcid)0000-0003-0630-1181 Peña-Monné, José Luis Universidad de Zaragoza (orcid)0000-0003-4067-8222 González-Pérez, José Antonio Gómez-García, Daniel 3006 430 Universidad de Zaragoza Dpto. Geograf. Ordenac.Territ. Área Geografía Física 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. 734 (2020), 139121 [13 pp.] Sci. total environ. SCIENCE OF THE TOTAL ENVIRONMENT 0048-9697 870365 http://zaguan.unizar.es/record/89965/files/texto_completo.pdf Postprint 419064 http://zaguan.unizar.es/record/89965/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:89965 articulos driver 2024-01-09-13:33:13 ARTICLE