Readily available resources across sites and genotypes result in greater aboveground growth and reduced fine root production in Pinus taeda

Simple item page
dc.contributor.authorShively, Timothy J.en
dc.contributor.authorCook, Rachelen
dc.contributor.authorMaier, Chris A.en
dc.contributor.authorGarcia, Kevinen
dc.contributor.authorAlbaugh, Timothy J.en
dc.contributor.authorCampoe, Otavioen
dc.contributor.authorLeggett, Zakiyaen
dc.date.accessioned2023-05-25T19:07:39Zen
dc.date.available2023-05-25T19:07:39Zen
dc.date.issued2022-10en
dc.description.abstractFine roots serve as the primary interface between trees and the soil, and they are dynamic in their response to environmental conditions. Among many functions, they are principle in gathering nutrients and water, and they constitute a major component of the tree. Their overall contribution to soil carbon flux is not well understood, nor is the effect of site and genotype on their dynamics, and these factors are crucial to understanding nutrient cycles and tree growth under variable conditions. This study evaluated how the fine root dynamics of loblolly pine (Pinus taeda L.) might be different between genotypes and on different sites. Three loblolly pine plantations were established, two in 2009 in North Carolina (NC) and Virginia (VA), and one in 2011 in Brazil (BR). Root biomass was estimated with soil cores across the three sites and between two genotypes in 2020. Seasonal and annual fine mot production was measured at the NC and VA sites over the 12th growing season using ingrowth cores. The trees in BR that were two years younger were much larger than those in NC and VA and had more fine root biomass at initial sampling than those in NC, despite similar levels of fertility. Meanwhile, fine mot production rates decreased with higher rates of aboveground productivity across all measured plots in NC and VA. These results indicate that (1) standing fine root biomass may be related to environmental conditions that are not easily manipulated, which could inform modeling of carbon cycles, and (2) in these intensively managed plots, sufficient resources were available to allow for increased aboveground growth despite lower rates of fine mot production, which supports the employment of these intensive silvicultural practices.en
dc.description.adminPublic domain – authored by a U.S. government employeeen
dc.description.notesWe would like to thank the Forest Productivity Cooperative and personnel of Valor Florestal for their establishment and maintenance of these study sites, and for the COOP members' continued support of this research. We also acknowledge the support of this project from the Department of Forestry and Environmental Resources at NC State University, the Department of Forest Resources and Environmental Conservation at Virginia Tech, and the Department of Forest Sciences at the Federal University of Lavras. We appreciate the hours of selfless assistance from Andrew Laviner, Gerardo Rojas, Kyle Peer and Clay Sawyers at the Reynolds Homestead Forest Resource Research Center, Hans Rohr, Christopher Clark, and Brandon Merritt of the North Carolina Forest Service's Bladen Lakes State Forest, and from Karen Sarsony of the US Forest Service Southern Research Station.This work was supported by NSF I/UCRC Center for Advanced Forestry Systems, award 1916552.en
dc.description.sponsorshipDepartment of Forestry and Environmental Resources at NC State University; Department of Forest Resources and Environmental Conservation at Virginia Tech; Department of Forest Sciences at the Federal University of Lavras; NSF I/UCRC Center for Advanced Forestry Systems [1916552]; Div Of Industrial Innovation & Partnersh; Directorate For Engineering [1916552] Funding Source: National Science Foundationen
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.foreco.2022.120431en
dc.identifier.eissn1872-7042en
dc.identifier.issn0378-1127en
dc.identifier.urihttp://hdl.handle.net/10919/115192en
dc.identifier.volume521en
dc.language.isoenen
dc.publisherElsevieren
dc.rightsPublic Domain (U.S.)en
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/en
dc.subjectLoblolly-pineen
dc.subjectleaf-areaen
dc.subjectannual fertilizationen
dc.subjectcarbon allocationen
dc.subjectstemwood growthen
dc.subjectturnover ratesen
dc.subjectplantationsen
dc.subjectdynamicsen
dc.subjectbiomassen
dc.subjectnutrienten
dc.titleReadily available resources across sites and genotypes result in greater aboveground growth and reduced fine root production in Pinus taedaen
dc.title.serialForest Ecology and Managementen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1-s2.0-S037811272200425X-main.pdf
Size:
698.64 KB
Format:
Adobe Portable Document Format
Description:
Published version
Download

Collections

Scholarly Works, Forest Resources and Environmental Conservation