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Grazing Abandonment Delays the Effect of Temperature on Aboveground Net Primary Production in Atlantic Grasslands
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SYSNO ASEP 0510384 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Grazing Abandonment Delays the Effect of Temperature on Aboveground Net Primary Production in Atlantic Grasslands Author(s) Aldezabal, A. (ES)
Odriozola Larranga, Inaki (MBU-M) ORCID
Garcia-Baquero, G. (ES)Source Title Rangeland Ecology & Management. - : Society for Range Management - ISSN 1550-7424
Roč. 72, č. 5 (2019), s. 822-831Number of pages 10 s. Language eng - English Country US - United States Keywords Aralar Natural Park ; dynamic regression ; mean monthly air temperature Subject RIV EE - Microbiology, Virology OECD category Microbiology Method of publishing Limited access Institutional support MBU-M - RVO:61388971 UT WOS 000486947000013 EID SCOPUS 85066616709 DOI 10.1016/j.rama.2019.03.004 Annotation We used an Atlantic grassland system on the Iberian Peninsula to ascertain whether monthly climate variability explains variation in monthly aboveground net primary production (ANPP) and to test whether climate-ANPP relationships depend on grazing regime. In 2005, large herbivores (beef cattle, dairy sheep, and horses) were excluded through fencing three 2 500-m(2) plots, each located in a different location, adjacent grazed plots of equal size were established. ANPP was measured monthly during the next three growing periods (2006-2008), and locally measured climate data were obtained from a public database. Because between-site variation in annual ANPP was not significant, we used data averaged across sites to test for the effect of monthly climate variability on monthly ANPP by means of dynamic regression. Enhanced ANPP was found after grazing abandonment, probably due to the sudden dominance of productive graminoids. Variation in monthly rainfall did not contribute to explain monthly ANPP under grazing or grazing exclusion. Simultaneous mean monthly air temperature explained monthly ANPP under grazing. By contrast, the effect of temperature on ANPP under grazing exclusion was delayed by 1 mo. We suggest that this delay can be explained by the development of a thick organic layer (litter) that insulated the soil in the grazing exclusion plots. However, changes in floristic composition and, consequently, in phenology might also have contributed to the differential response. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2020 Electronic address https://www.sciencedirect.com/science/article/abs/pii/S1550742418302768?via%3Dihub
Number of the records: 1