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Statistical considerations of using the 1-ft2 quadrat for monitoring peak standing crop and residual dry matter on California annual rangelands

dc.contributor.authorLarsen, R.
dc.contributor.authorRobins, J.G.
dc.contributor.authorJensen, K.B.
dc.contributor.authorShapero, M.
dc.contributor.authorStriby, K.
dc.contributor.authorAlthouse, L.
dc.contributor.authorGeorge, M.
dc.contributor.authorHorney, M.
dc.contributor.authorRao, D.
dc.contributor.authorHernández, A.
dc.contributor.authorDahlgren, R.
dc.contributor.authorBartolome, J.
dc.date.accessioned2026-02-13T00:23:30Z
dc.date.available2026-02-13T00:23:30Z
dc.date.issued2023-10
dc.identifier.citationRoyce Larsen, Joseph G. Robins, Kevin B. Jensen, Matthew Shapero, Karl Striby, LynneDee Althouse, Melvin George, Marc Horney, Devii Rao, Alexander Hernandez, Randy Dahlgren, and James Bartolome "Statistical Considerations of Using the 1-ft2 Quadrat for Monitoring Peak Standing Crop and Residual Dry Matter on California Annual Rangelands," Rangelands 45(5), 102-108, (20 October 2023). https://doi.org/10.1016/j.rala.2023.06.002
dc.identifier.issn0190-0528
dc.identifier.doi10.1016/j.rala.2023.06.002
dc.identifier.urihttp://hdl.handle.net/10150/679621
dc.description.abstract• Peak standing crop (PSC) and residual dry matter (RDM) are the primary measures of production and grazing intensity on California's annual rangelands. • One of the most common methods of monitoring forage metrics is to clip 1-ft2 quadrats. The USDA Forest Service, Bureau of Land Management, universities, and other land managers have been using this methodology since the 1930s. • We used best linear unbiased predictors (BLUEs) to determine 95% confidence intervals for PSC and RDM. For both PSC and RDM, as the number of samples taken increased from 1 to 10, the predictive ability also significantly increased. We found no evidence of increased predictive power past 10 samples. © 2023 The Authors
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rights© 2023 The Authors. Published by Elsevier Inc. on behalf of The Society for Range Management. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectbare ground
dc.subjectenvironmental monitoring
dc.subjectpeak standing crop
dc.subjectquadrat
dc.subjectresidual dry matter
dc.subjectbare soil
dc.subjectbiomass
dc.subjectdry matter
dc.subjectenvironmental monitoring
dc.subjectforage
dc.subjectrangeland
dc.subjectCalifornia
dc.subjectUnited States
dc.titleStatistical considerations of using the 1-ft2 quadrat for monitoring peak standing crop and residual dry matter on California annual rangelands
dc.typeArticle
dc.typetext
dc.identifier.journalRangelands
dc.description.collectioninformationThe Rangelands 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.source.journaltitleRangelands
dc.source.volume45
dc.source.issue5
dc.source.beginpage102
dc.source.endpage108
refterms.dateFOA2026-02-13T00:23:30Z


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© 2023 The Authors. Published by Elsevier Inc. on behalf of The Society for Range Management. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Except where otherwise noted, this item's license is described as © 2023 The Authors. Published by Elsevier Inc. on behalf of The Society for Range Management. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).