Show simple item record

dc.contributor.authorHierro, J. L.
dc.contributor.authorBranch, L. C.
dc.contributor.authorVillarreal, D.
dc.contributor.authorClark, K. L.
dc.date.accessioned2020-09-23T05:19:18Z
dc.date.available2020-09-23T05:19:18Z
dc.date.issued2000-11-01
dc.identifier.citationHierro, J. L., Branch, L. C., Villarreal, D., & Clark, K. L. (2000). Predictive equations for biomass and fuel characteristics of Argentine shrubs. Journal of Range Management, 53(6), 617-621.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4003156
dc.identifier.doi10.2458/azu_jrm_v53i6_hierro
dc.identifier.urihttp://hdl.handle.net/10150/643816
dc.description.abstractPredictive equations for estimating shrub biomass in semi-arid scrub ecosystems are essential for evaluating shrub encroachment, conducting ecosystem-level studies of net primary productivity (NPP) and nutrient cycling, and examining effects of different fire regimes. In this study, we developed predictive equations to estimate total aboveground biomass and biomass of foliage and stems of the 8most common shrubs in the semi-arid scrub (Monte) of central Argentina. We also examined the relationship between shrub size and proportions of these components for the dominant species, Larrea divaricata Cavanilles (creosotebush), and determined fuel characteristics (dead-to-live ratio, bulk density) of the 8 shrub species. Regression analyses were used to examine the relationships between aboveground biomass and 5 field measurements (diameter of the longest stem, shrub height, maximum crown width, crown width at right angles to maximum crown width, and crown volume). A natural log-log model based on a single variable best described this relationship in most cases. The easiest field measurement for 6 of the 8 species was diameter of the longest stem, and this measure was often the best predictor of shrub biomass. As L. divaricata increased in size, the proportional biomass of large stems increased, and bio-mass of foliage and small stems decreased. This pattern suggests productivity may decrease with shrub age. The mass of dead materialwas low in most shrub species. Bulk densities were comparable to those of shrubs in other semi-arid ecosystems. Equations developed here will allow rapid and accurate estimation of shrub biomass in the Monte of Argentina.
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.subjectLarrea divaricata
dc.subjectChuquiraga
dc.subjectprosopis flexuosa
dc.subjectgeoffroea decorticans
dc.subjectlarrea nitida
dc.subjectlarrea cuneifolia
dc.subjectsemiarid grasslands
dc.subjectstems
dc.subjectprediction
dc.subjectequations
dc.subjectshrubs
dc.subjectbiomass
dc.subjectArgentina
dc.subjectdry matter
dc.subjectplant height
dc.subjectSemi-arid scrub
dc.subjectLarrea
dc.subjectshrub biomass
dc.subjectMonte
dc.subjectArgentina
dc.titlePredictive equations for biomass and fuel characteristics of Argentine shrubs
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
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.volume53
dc.source.issue6
dc.source.beginpage617-621
refterms.dateFOA2020-09-23T05:19:18Z


Files in this item

Thumbnail
Name:
9566-9447-1-PB.pdf
Size:
40.03Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record