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dc.contributor.authorDefossé, G. E.
dc.contributor.authorBertiller, M. B.
dc.contributor.authorAres, J. O.
dc.date.accessioned2020-09-24T02:26:49Z
dc.date.available2020-09-24T02:26:49Z
dc.date.issued1990-03-01
dc.identifier.citationDefossé, G. E., Bertiller, M. B., & Ares, J. O. (1990). Above-ground phytomass dynamics in a grassland steppe of Patagonia, Argentina. Journal of Range Management, 43(2), 157-160.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/3899036
dc.identifier.urihttp://hdl.handle.net/10150/644818
dc.description.abstractAerial phytomass and litter dynamics of a grassland steppe in Patagonia, Argentina, were studied at either monthly or bimonthly intervals for 2 years. This area is characterized by a cold and wet winter (June to September) and a warm and dry summer (December to March). The growing season extends from September to April, with moist spring and fall periods interrupted by a midsummer drought. Festuca pallescens (St. Yves) Parodi produced about 95% of the total annual phytomass. Peaks of green phytomass were recorded in spring-summer of the first growing season (33.6 +/- 2.9 g m-2) and in early spring (35.0 +/- 2.4 g m-2) and fall (32.7 +/- 2.7 g m-2) of the second growing season. Less abundant forage grasses were Poa ligularis Nees ap Steudel, Bromus setifolius Presl., Hordeum comosum Presl., and Rytidosperma virescens (Desvaux) Nicors. Shrubs and forbs represented less than 2% of the total annual phytomass of this grassland. The relationships between phytomass production of the main species and some environmental variables are discussed. These results contribute to the knowledge of above-ground phytomass dynamics and forage availability throughout seasons of this grassland in Patagonia, and are part of the data necessary for proper range management planning. This information will permit the designing of appropriate grazing schedules by balancing the number of grazing animals to the forage resources available.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectPoa
dc.subjectBromus
dc.subjectPoa ligularis
dc.subjectfestuca pallescens
dc.subjectrytidosperma virescens
dc.subjectbromus setifolius
dc.subjecthordeum comosum
dc.subjectHordeum
dc.subjectFestuca
dc.subjectsteppes
dc.subjectpopulation dynamics
dc.subjectpastures
dc.subjectPoaceae
dc.subjectbiomass production
dc.subjectrange management
dc.subjectArgentina
dc.subjectbotanical composition
dc.titleAbove-ground phytomass dynamics in a grassland steppe of Patagonia, Argentina
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.noteThis material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries.
dc.description.collectioninformationThe Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume43
dc.source.issue2
dc.source.beginpage157-160
refterms.dateFOA2020-09-24T02:26:49Z


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