dc.creatorEnriquez, Andrea Soledad
dc.creatorChimner, Rodney Allen
dc.creatorCremona, Maria Victoria
dc.date.accessioned2018-11-09T14:38:06Z
dc.date.accessioned2023-03-15T13:57:09Z
dc.date.available2018-11-09T14:38:06Z
dc.date.available2023-03-15T13:57:09Z
dc.date.created2018-11-09T14:38:06Z
dc.date.issued2014-10
dc.identifier0140-1963
dc.identifier1095-922X
dc.identifierhttps://doi.org/10.1016/j.jaridenv.2014.04.012
dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0140196314000998
dc.identifierhttp://hdl.handle.net/20.500.12123/3850
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/6207058
dc.description.abstractWet meadows are seasonally saturated wetlands that can develop in arid and semi-arid areas. In the semi-arid region of North Patagonia, Argentina wet meadows are islands of high net primary productivity surrounded by low productivity steppe vegetation. Because of this, Patagonian wet meadows have been heavily grazed by livestock for more than a century. It has been shown that overgrazed wet meadows have lower soil carbon, however, little is known about how overgrazing impacts N dynamics. To this end, we measured ammonium (NH4+), nitrate (NO3−), and total nitrogen (Nt) in paired wet meadows that varied in long-term grazing intensity (heavy vs. light). Results indicate that heavily grazed sites had on average 43% less Nt and 57% less NH4+ than lightly grazed sites. Soil NH4+ concentrations were always significantly greater than NO3− concentrations, being the later often below detection levels. In addition, NH4+ concentrations were correlated with soil moisture in lightly grazed sites, but not in heavily grazed sites. These findings indicate that implementation of better management practices are currently needed to promote more sustainable grazing in semi-arid wet meadows of North Patagonia
dc.languageeng
dc.publisherElsevier
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.sourceJournal of Arid Environments 109 : 1-5 (October 2014)
dc.subjectPrados de Siega
dc.subjectPastoreo
dc.subjectSuelo
dc.subjectNitrógeno
dc.subjectAmoníaco
dc.subjectContenido de Agua en el Suelo
dc.subjectSobrepastoreo
dc.subjectMeadows
dc.subjectGrazing
dc.subjectSoil
dc.subjectNitrogen
dc.subjectAmmonia
dc.subjectSoil Water Content
dc.subjectOvergrazing
dc.titleLong-term grazing negatively affects nitrogen dynamics in Northern Patagonian wet meadows
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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