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CP1 (62.5 %)

Soil moisture. Pro. w09. w09. w08. w09. w08. w09. w08. alkP. w09. w08. w08. w09. acP. Microbial biomass-C. w08. w07. Glu. w07. CP2 (16.8 %). s09. s09. s09. Deh. s09. N. s08. s08. w07. s08. C. s09. w07. w07. s08. s09. s08. s08. w07. Plant litter.

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CP1 (62.5 %)

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  1. Soil moisture Pro w09 w09 w08 w09 w08 w09 w08 alkP w09 w08 w08 w09 acP Microbial biomass-C w08 w07 Glu w07 CP2 (16.8 %) s09 s09 s09 Deh s09 N s08 s08 w07 s08 C s09 w07 w07 s08 s09 s08 s08 w07 Plant litter CP1 (62.5 %) Online Resource 1: Principal component analysis (PCA) of chemical and biological soil properties. Open symbols: inter-canopy areas. Solid symbols: plant-covered patches. Black, dark grey and light grey symbols correspond to low, medium, and high grazing intensities, respectively. w07, w08 and w09: winters 2007, 2008 and 2009, respectively. s08 and s09: summers 2008 and 2009, respectively. C: soil organic-C. N: total soil-N. Plant litter mass: Plant litter. acP, alkP, Glu, Deh and Pro: acid phosphatase, alkaline phosphatase, β-glucosidase, dehydrogenase and protease activities, respectively Article Title: Do soil enzymes respond to long-term grazing in an arid ecosystem? Journal name: Plant and Soil Author names: Olivera NL1, Prieto L1, Carrera AL1,2, Saraví Cisneros H1,2, Bertiller MB1,2 Affiliation: 1 Centro Nacional Patagónico (CONICET). Boulevard Brown 2915, U9120ACF Puerto Madryn, Chubut, Argentina. 2 Universidad Nacional de la Patagonia San Juan Bosco. Puerto Madryn, Chubut, Argentina. Corresponding author: N. L. Olivera. Centro Nacional Patagónico (CONICET). Blvd. Brown 2915, U9120ACF Puerto Madryn, Chubut, Argentina. Tel. +54-280-4451024; Fax +54-280-4451543. E-mail address: olivera@cenpat.edu.ar

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