Gregarious flowering and death of understorey bamboo slow litter decomposition and nitrogen turnover in a southern temperate forest in Patagonia, Argentina

Mostrar otras versiones (1)

The massive synchronized flowering and subsequent mortality of understorey bamboo species occur in infrequent and unpredictable intervals in temperate and subtropical forests around the world. Because of the sporadic occurrence of these flowering episodes and the long intervals between events, very...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autor principal: Austin, Amy Theresa
Otros Autores: Marchesini, Victoria A.
Formato: Artículo
Lenguaje:Inglés
Materias:
BAMBOO FLOWERING
BIOTIC DISTURBANCE
CARBON CYCLING
LITTER DECOMPOSITION
NITROGEN CYCLING
NOTHOFAGUS FOREST
SOUTH AMERICA
SOUTHERN BEECH
BAMBOO
BIOTIC FACTOR
CARBON CYCLE
DECOMPOSITION
DIEBACK
FLOWERING
LEAF LITTER
MORTALITY
NITROGEN CYCLE
OLD-GROWTH FOREST
SHRUB
SOIL NUTRIENT
SOIL ORGANIC MATTER
SUBTROPICAL REGION
TEMPERATE FOREST
UNDERSTORY
ARGENTINA
PATAGONIA
CHUSQUEA CULEOU
FAGUS
NOTHOFAGUS
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2012Austin.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
LEADER 07299cab a22013817a 4500
001 AR-BaUFA000120
003 AR-BaUFA
005 20220914110250.0
008 181208t2012 |||||o|||||00||||eng d
999 |c 46554  |d 46554 
022 |a 0269-8463 
024 |a 10.1111/j.1365-2435.2011.01910.x 
040 |a AR-BaUFA  |c AR-BaUFA 
100 1 |9 48259  |a Austin, Amy Theresa 
245 0 0 |a Gregarious flowering and death of understorey bamboo slow litter decomposition and nitrogen turnover in a southern temperate forest in Patagonia, Argentina 
520 |a The massive synchronized flowering and subsequent mortality of understorey bamboo species occur in infrequent and unpredictable intervals in temperate and subtropical forests around the world. Because of the sporadic occurrence of these flowering episodes and the long intervals between events, very little is known about their consequences on biogeochemical cycling in natural ecosystems. In 2001, a synchronized flowering and dieback of the native bamboo, Chusquea culeou E. Desv., occurred, covering more than 200000ha in the north-west region of Patagonia, Argentina. We explored the impacts of this gregarious flowering event on litter decomposition and nitrogen turnover in an old-growth southern beech forest for 3 years after the flowering event. Bamboo litter decomposed significantly slower than overstorey tree litter, and decomposition in flowered patches overall was significantly reduced compared to remnant live understorey patches. In addition, soil mineral nitrogen was reduced in flowered patches, and nitrogen transformations were altered, most notably in the third year after the flowering event. This infrequent phenomenon of gregarious flowering could have consequences for carbon and nutrient cycling, as low-quality standing dead biomass is gradually incorporated into soil organic matter pools. This study demonstrates that large biotically mediated perturbations of understorey vegetation can impact biogeochemical cycles in temperate forest ecosystems by reducing carbon turnover and altering nitrogen availability and transformations, even in the absence of physical disturbance. 
653 0 |a BAMBOO FLOWERING 
653 0 |a BIOTIC DISTURBANCE 
653 0 |a CARBON CYCLING 
653 0 |a LITTER DECOMPOSITION 
653 0 |a NITROGEN CYCLING 
653 0 |a NOTHOFAGUS FOREST 
653 0 |a SOUTH AMERICA 
653 0 |a SOUTHERN BEECH 
653 0 |a BAMBOO 
653 0 |a BIOTIC FACTOR 
653 0 |a CARBON CYCLE 
653 0 |a DECOMPOSITION 
653 0 |a DIEBACK 
653 0 |a FLOWERING 
653 0 |a LEAF LITTER 
653 0 |a MORTALITY 
653 0 |a NITROGEN CYCLE 
653 0 |a OLD-GROWTH FOREST 
653 0 |a SHRUB 
653 0 |a SOIL NUTRIENT 
653 0 |a SOIL ORGANIC MATTER 
653 0 |a SUBTROPICAL REGION 
653 0 |a TEMPERATE FOREST 
653 0 |a UNDERSTORY 
653 0 |a ARGENTINA 
653 0 |a PATAGONIA 
653 0 |a CHUSQUEA CULEOU 
653 0 |a FAGUS 
653 0 |a NOTHOFAGUS 
700 1 |9 22670  |a Marchesini, Victoria A. 
773 |t Functional Ecology  |g Vol.26, no.1 (2012), p.265-273 
856 |u http://ri.agro.uba.ar/files/intranet/articulo/2012Austin.pdf  |i En reservorio  |q application/pdf  |f 2012Austin  |x MIGRADOS2018 
856 |u http://www.britishecologicalsociety.org/  |x MIGRADOS2018  |z LINK AL EDITOR 
900 |a as 
900 |a 20131220 
900 |a N 
900 |a SCOPUS 
900 |a a 
900 |a s 
900 |a ARTICULO 
900 |a EN LINEA 
900 |a 02698463 
900 |a 10.1111/j.1365-2435.2011.01910.x 
900 |a ^tGregarious flowering and death of understorey bamboo slow litter decomposition and nitrogen turnover in a southern temperate forest in Patagonia, Argentina 
900 |a ^aAustin^bA.T. 
900 |a ^aMarchesini^bV.A. 
900 |a ^aAustin^bA. T. 
900 |a ^aMarchesini^bV. A. 
900 |a ^aAustin^bA.T.^tIFEVA-CONICET, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, Buenos Aires C1417DSE, Argentina 
900 |a ^aMarchesini^bV.A. 
900 |a ^tFunctional Ecology^cFunct. Ecol. 
900 |a en 
900 |a 265 
900 |a ^i 
900 |a Vol. 26, no. 1 
900 |a 273 
900 |a BAMBOO FLOWERING 
900 |a BIOTIC DISTURBANCE 
900 |a CARBON CYCLING 
900 |a LITTER DECOMPOSITION 
900 |a NITROGEN CYCLING 
900 |a NOTHOFAGUS FOREST 
900 |a SOUTH AMERICA 
900 |a SOUTHERN BEECH 
900 |a BAMBOO 
900 |a BIOTIC FACTOR 
900 |a CARBON CYCLE 
900 |a DECOMPOSITION 
900 |a DIEBACK 
900 |a FLOWERING 
900 |a LEAF LITTER 
900 |a MORTALITY 
900 |a NITROGEN CYCLE 
900 |a OLD-GROWTH FOREST 
900 |a SHRUB 
900 |a SOIL NUTRIENT 
900 |a SOIL ORGANIC MATTER 
900 |a SUBTROPICAL REGION 
900 |a TEMPERATE FOREST 
900 |a UNDERSTORY 
900 |a ARGENTINA 
900 |a PATAGONIA 
900 |a CHUSQUEA CULEOU 
900 |a FAGUS 
900 |a NOTHOFAGUS 
900 |a The massive synchronized flowering and subsequent mortality of understorey bamboo species occur in infrequent and unpredictable intervals in temperate and subtropical forests around the world. Because of the sporadic occurrence of these flowering episodes and the long intervals between events, very little is known about their consequences on biogeochemical cycling in natural ecosystems. In 2001, a synchronized flowering and dieback of the native bamboo, Chusquea culeou E. Desv., occurred, covering more than 200000ha in the north-west region of Patagonia, Argentina. We explored the impacts of this gregarious flowering event on litter decomposition and nitrogen turnover in an old-growth southern beech forest for 3 years after the flowering event. Bamboo litter decomposed significantly slower than overstorey tree litter, and decomposition in flowered patches overall was significantly reduced compared to remnant live understorey patches. In addition, soil mineral nitrogen was reduced in flowered patches, and nitrogen transformations were altered, most notably in the third year after the flowering event. This infrequent phenomenon of gregarious flowering could have consequences for carbon and nutrient cycling, as low-quality standing dead biomass is gradually incorporated into soil organic matter pools. This study demonstrates that large biotically mediated perturbations of understorey vegetation can impact biogeochemical cycles in temperate forest ecosystems by reducing carbon turnover and altering nitrogen availability and transformations, even in the absence of physical disturbance. 
900 |a 26 
900 |a 1 
900 |a 2012 
900 |a ^cH 
900 |a AAG 
900 |a AGROVOC 
900 |a 2012Austin 
900 |a AAG 
900 |a http://ri.agro.uba.ar/files/intranet/articulo/2012Austin.pdf 
900 |a 2012Austin.pdf 
900 |a http://www.britishecologicalsociety.org/ 
900 |a http://www.scopus.com/inward/record.url?eid=2-s2.0-84856017256&partnerID=40&md5=dc88f73e0abb5552d93e60bc4bdb27b7 
900 |a ^a^b^c^d^e^f^g^h^i 
900 |a OS 
942 0 0 |c ARTICULO  |2 udc 
942 0 0 |c ENLINEA  |2 udc 

Ejemplares similares