Drivers of carbon sequestration by biomass compartment of riparian forests

dc.contributor.authorRieger, Isaak
dc.contributor.authorKowarik, Ingo
dc.contributor.authorCierjacks, Arne
dc.date.accessioned2017-07-14T10:50:12Z
dc.date.available2017-07-14T10:50:12Z
dc.date.issued2015
dc.description.abstractRiparian forests are expected to play a crucial role in the global carbon (C) cycle but the complex mechanisms of C sequestration in forests remain poorly understood. This study used a comprehensive approach to analyze C sequestration that included the main C compartments in forests, i.e., litterfall, fine roots, and aboveground woody biomass. We aimed at modeling each of them in response to an array of environmental drivers to untangle the functioning of C sequestration by compartment. The study was conducted in a Central European riparian forest that is part of the Donau-Auen National Park in Austria. Carbon sequestration by compartment was correlated with environmental parameters (climate, stream flow, hydrological, spatial, and forest stand parameters) using generalized linear mixed models (GLMM), and the correlations were prioritized by hierarchical partitioning. Our results suggest divergent responses of C sequestration in different ecosystem compartments under dry and wet soil conditions. In particular, dry conditions led to significantly higher C sequestration in aboveground woody biomass (larger distance to the low groundwater table), whereas wetter conditions fostered C sequestration in fine-root (smaller magnitude of fluctuation in the groundwater table) and leaf biomass (smaller distance to the low groundwater table). Fine roots and litterfall responded to short-term variations in climate (mean annual temperature) and flooding parameters (duration of the low to mean Danube River water level in the previous dormant season), highlighting the pivotal role of the dynamic fine-root and leaf biomass compartments for C uptake in forest ecosystems. Consequently, litterfall and fine roots should be considered to improve the sensitivity of C sequestration model responses to climate scenarios.en
dc.description.sponsorshipDFG, CI 175/1, Steuergrößen der Kohlenstoffdynamik im Boden und in der Vegetation von Auwäldernen
dc.identifier.eissn2150-8925
dc.identifier.issn2150-8925
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/6493
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-6001
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.subject.ddc570 Biowissenschaften; Biologiede
dc.subject.otherclimateen
dc.subject.otherDanube Riveren
dc.subject.otherfine rootsen
dc.subject.otherfloodingen
dc.subject.otherFraxinus excelsioren
dc.subject.othergeneralized linear mixed modelen
dc.subject.otherhydrologyen
dc.subject.otherlitterfallen
dc.subject.otherPopulus albaen
dc.subject.otherQuercus roburen
dc.subject.otherSalix albaen
dc.subject.otherstem productionen
dc.titleDrivers of carbon sequestration by biomass compartment of riparian forestsen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber185
dcterms.bibliographicCitation.doi10.1890/ES14-00330.1
dcterms.bibliographicCitation.issue10
dcterms.bibliographicCitation.journaltitleEcosphereen
dcterms.bibliographicCitation.originalpublishernameEcological Society of Americaen
dcterms.bibliographicCitation.originalpublisherplaceWashington, DCen
dcterms.bibliographicCitation.volume6
tub.accessrights.dnbfree
tub.affiliationFak. 6 Planen Bauen Umwelt::Inst. Ökologie::FG Ökosystemkunde / Pflanzenökologiede
tub.affiliation.facultyFak. 6 Planen Bauen Umweltde
tub.affiliation.groupFG Ökosystemkunde / Pflanzenökologiede
tub.affiliation.instituteInst. Ökologiede
tub.publisher.universityorinstitutionTechnische Universität Berlin

Files

Original bundle
Now showing 1 - 1 of 1
Loading…
Thumbnail Image
Name:
10.1890.ES14-00330.1.pdf
Size:
1.61 MB
Format:
Adobe Portable Document Format

Collections