000097424 001__ 97424
000097424 005__ 20210902121913.0
000097424 0247_ $$2doi$$a10.5194/bg-17-6033-2020
000097424 0248_ $$2sideral$$a121803
000097424 037__ $$aART-2020-121803
000097424 041__ $$aeng
000097424 100__ $$aRodríguez, A.
000097424 245__ $$aInteractions between biogeochemical and management factors explain soil organic carbon in Pyrenean grasslands
000097424 260__ $$c2020
000097424 5060_ $$aAccess copy available to the general public$$fUnrestricted
000097424 5203_ $$aGrasslands are one of the major sinks of terrestrial soil organic carbon (SOC). Understanding how environmental and management factors drive SOC is challenging because they are scale-dependent, with large-scale drivers affecting SOC both directly and through drivers working at small scales. Here we addressed how regional, landscape and grazing management, soil properties and nutrients, and herbage quality factors affect 20 cm depth SOC stocks in mountain grasslands in the Pyrenees. Taking advantage of the high variety of environmental heterogeneity in the Pyrenees, we built a dataset (n = 128) that comprises a wide range of environmental and management conditions. This was used to understand the relationship between SOC stocks and their drivers considering multiple environments. We found that temperature seasonality (difference between mean summer temperature and mean annual temperature; TSIS) was the most important geophysical driver of SOC in our study, depending on topography and management. TSIS effects on SOC increased in exposed hillsides, slopy areas, and relatively intensively grazed grasslands. Increased TSIS probably favours plant biomass production, particularly at high altitudes, but landscape and grazing management factors regulate the accumulation of this biomass into SOC. Concerning biochemical SOC drivers, we found unexpected interactive effects between grazer type, soil nutrients and herbage quality. Soil N was a crucial SOC driver as expected but modulated by livestock species and neutral detergent fibre contenting plant biomass; herbage recalcitrance effects varied depending on grazer species. These results highlight the gaps in knowledge about SOC drivers in grasslands under different environmental and management conditions. They may also serve to generate testable hypotheses in later/future studies directed to climate change mitigation policies.
000097424 536__ $$9info:eu-repo/grantAgreement/ES/DGA/ARAID$$9info:eu-repo/grantAgreement/ES/FECYT-MICINN/CAPAS CGL2010-22378-C03-01$$9info:eu-repo/grantAgreement/ES/FECYT-MICINN/CAR-BOAGROPAS CGL2006-13555-C03-03$$9info:eu-repo/grantAgreement/ES/FECYT-MICINN/CARBOPAS REN2002-04300-C02-01$$9info:eu-repo/grantAgreement/ES/FECYT-MINECO/BIOGEI GL2013-49142-C2-1-R$$9info:eu-repo/grantAgreement/ES/FECYT-MINECO/IMAGINE CGL2017-85490-R$$9info:eu-repo/grantAgreement/EUR/INTERREG-POCTEFA/IV-A-FLUXPYR-EFA 34-08$$9info:eu-repo/grantAgreement/EUR/INTERREG-III-A/I3A-4-147-E
000097424 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000097424 590__ $$a4.295$$b2020
000097424 591__ $$aGEOSCIENCES, MULTIDISCIPLINARY$$b41 / 198 = 0.207$$c2020$$dQ1$$eT1
000097424 591__ $$aECOLOGY$$b36 / 166 = 0.217$$c2020$$dQ1$$eT1
000097424 592__ $$a1.744$$b2020
000097424 593__ $$aEcology, Evolution, Behavior and Systematics$$c2020$$dQ1
000097424 593__ $$aEarth-Surface Processes$$c2020$$dQ1
000097424 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000097424 700__ $$aCanals, R.M.
000097424 700__ $$aPlaixats, J.
000097424 700__ $$aAlbanell, E.
000097424 700__ $$aDebouk, H.
000097424 700__ $$aGarcia-Pausas, J.
000097424 700__ $$aSan Emeterio, L.
000097424 700__ $$aRibas, À.
000097424 700__ $$0(orcid)0000-0003-2398-0796$$aJimenez, J.J.
000097424 700__ $$aSebastià, M.T.
000097424 773__ $$g17, 23 (2020), 6033-6050$$pBiogeosciences$$tBiogeosciences$$x1726-4170
000097424 8564_ $$s343958$$uhttps://zaguan.unizar.es/record/97424/files/texto_completo.pdf$$yVersión publicada
000097424 8564_ $$s507115$$uhttps://zaguan.unizar.es/record/97424/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000097424 909CO $$ooai:zaguan.unizar.es:97424$$particulos$$pdriver
000097424 951__ $$a2021-09-02-10:43:28
000097424 980__ $$aARTICLE