Foliage and Litter Chemistry, Decomposition, and Nutrient Release in Pinus taeda

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dc.contributor.authorKiser, L. Chrisen
dc.contributor.authorFox, Thomas R.en
dc.contributor.authorCarlson, Colleen A.en
dc.contributor.departmentForest Resources and Environmental Conservationen
dc.date.accessed2014-05-08en
dc.date.accessioned2014-05-14T13:12:28Zen
dc.date.available2014-05-14T13:12:28Zen
dc.date.issued2013-09en
dc.description.abstractFollowing fertilization of forest plantations, high accumulations of nutrients in the forest floor creates the need to assess rates of forest floor decomposition and nutrient release. The study site was a 25-year old experimental loblolly pine plantation in the North Carolina Sandhills Region. Soluble and insoluble N, P, carbohydrate and phenol-tannin fractions were determined in foliage and litter by extraction with trichloroacetic acid. The long-term forest floor decomposition rate and decomposition and nutrient release in an experiment simulating removal of the overstory canopy were also determined. In litter, insoluble protein-N comprised 80%-90% of total-N concentration while soluble inorganic- and organic-P comprised 50%-75% of total-P concentration explaining forest floor N accumulations. Fertilization did not increase soluble carbohydrates in litter and forest floor decomposition rates. Loblolly pine forest floor decomposing in environmental conditions simulating removal of the overstory canopy was greatly accelerated and indicated 75% mass loss and release of 80% of the N pool within one year. This could result in a loss of substantial quantities of N at harvest due to low N uptake by seedlings in the newly planted next rotation suggesting management of the forest floor at harvest is essential to conserve site N capital in these N limited systems.en
dc.description.sponsorshipNational Science Foundation's Center for Advanced Forestry Systemsen
dc.description.sponsorshipForest Productivity Cooperativeen
dc.description.sponsorshipVirginia Polytechnic Institute & State Universityen
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationKiser, L. C.; Fox, T. R.; Carlson, C. A., "Foliage and Litter Chemistry, Decomposition, and Nutrient Release in Pinus taeda," Forests 2013, 4(3), 595-612; doi:10.3390/f4030595.en
dc.identifier.doihttps://doi.org/10.3390/f4030595en
dc.identifier.issn1999-4907en
dc.identifier.urihttp://hdl.handle.net/10919/47971en
dc.identifier.urlhttp://www.mdpi.com/1999-4907/4/3/595en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectNitrogenen
dc.subjectPhosphorusen
dc.subjectcarbohydrateen
dc.subjectphenolen
dc.subjecttanninen
dc.subjectk-constanten
dc.subjectmean residence timeen
dc.subjectloblolly-pineen
dc.subjectplant litteren
dc.subjectorganic-matteren
dc.subjectNitrogen availabilityen
dc.subjectresource availabilityen
dc.subjectcarbon fractionsen
dc.subjectgrowth-responsesen
dc.subjectneedleen
dc.subjectforest floorsen
dc.subjectforestryen
dc.titleFoliage and Litter Chemistry, Decomposition, and Nutrient Release in Pinus taedaen
dc.title.serialForestsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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