Low stocks of coarse woody debris in a southwest Amazonian forest

Baker, Timothy R.; Coronado, Eurídice N. Honorio; Phillips, Oliver L.; Martin, Jim; Heijden, Geertje M. F. van der; Garcia, Michael; Silva-Espejo, Javier E.

doi:10.1007/s00442-007-0667-5

Cited by 89 publications

(93 citation statements)

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“…Comparing with similar studies from other tropical rain-forests, this current finding was lower than in Peru in which dead wood accounted for 7.5-9.3% of total AGB (Baker et al 2007). Pregitzer & Euskirchen (2004) reported that the mean C pool of woody debris across tropical forests amounted to 10% of the total carbon stocks.…”

Section: Discussioncontrasting

confidence: 67%

Carbon and nitrogen stocks in dead wood of tropical lowland forests as dependent on wood decay stages and land-use intensity

et al. 2016

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Meriem S., Tjitrosoedirjo S., Kotowska M.M., Hertel D., Triadiati T., 2016. Carbon and nitrogen stocks in dead wood of tropical lowland forests as dependent on wood decay stages and land-use intensity. Ann. For. Res. 59(2): 299-310.Abstract. Rapid transformation of natural forests into other land-use systems in the lowlands of Sumatra, Indonesia, strongly reduces total aboveground biomass and affects nutrient cycling. However, the consequences of this conversion for C and N stocks of dead wood remains poorly understood particularly in natural forests and jungle rubber. This study examined the differences in dead wood abundance, mass, and C, N and lignin concentrations of three decay stages of dead wood as well as the stocks of these chemical components stored in dead wood. Standing and fallen dead wood was determined as coarse woody debris with diameter ≥ 10 cm and classified into three decay stages of wood. Mass of dead wood was estimated using allometric equation. Total C and N stocks in dead wood in the natural forests (4.5 t C ha -1 , 0.05 t N ha -1 , respectively) were three times higher than those in the jungle rubber (1.5 t C ha -1 , 0.02 t N ha -1 , respectively). The stocks of C and N at early and advanced wood decay stages in the natural forests were also higher than those in the jungle rubber. The decay stages showed pronounced differences in concentrations of chemical components. With advancing stage of wood decay, N concentration increased and C/N ratio decreased, while concentrations of C and lignin were variable. The distribution of dead wood mass and stocks of C, and lignin were found to be higher in the early decay than those in the advanced decay stage. Higher input of dead wood in natural forests indicated a higher importance of dead wood decay in natural forests than in jungle rubber systems. Thus, replacing natural forests with jungle rubber strongly reduces total C and N stocks which might have a marked negative effect on the ecosystems' nutrient turnover and cycle.

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Section: Discussioncontrasting

confidence: 67%

Carbon and nitrogen stocks in dead wood of tropical lowland forests as dependent on wood decay stages and land-use intensity

et al. 2016

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“…Our current understanding suggests that CWD stocks generally decrease from north-eastern to south-western Amazonia (Baker et al 2007;Chao et al 2009a). Spatial variation in CWD stocks across the landscape may respond both to short-term climatic disturbances (e.g.…”

Section: Introductionmentioning

confidence: 91%

“…Of the different stocks, above-ground biomass is most often assessed in tropical forests, however coarse woody debris (CWD) is also an essential component because of its role in biogeochemical cycles (Chambers et al 2000;Clark et al 2002;Wilcke et al 2005;Palace et al 2008). Within tropical forests, CWD accounts for 6 to 25% of total above-ground carbon stocks (Nascimento and Laurance 2002; Rice et al 2004;Baker et al 2007; Palace et al 2012), implying a total pan-Amazon CWD carbon stock of ca. 10 Pg (Chao et al 2009a).…”

Section: Introductionmentioning

confidence: 99%

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Soil-induced impacts on forest structure drive coarse woody debris stocks across central Amazonia

Martins

Schietti

Feldpausch

et al. 2014

Plant Ecology & Diversity

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“…Los resultados muestran -1 que estos bosques acumulan 4.2 a 11.1 Mg C ha de madera muerta sobre el suelo. Estos valores de necromasa están en el rango menor de los valores reportados para la cuenca amazónica (0 a >80 Mg C; Baker et al, 2007) y equivalen a aquellos reservorios de bosques de arena blanca en Venezuela. La baja acumulación de madera muerta sobre el suelo puede estar relacionada a la baja productividad de los bosques como es el caso de los bosques de arena blanca (Malhi et al, 2004).…”

Section: Almacenamiento De Carbono Sobre El Suelounclassified

Diversidad, Estructura Y Carbono De Los Bosques Aluviales Del Noreste Peruano

2015

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RESUMENLos bosques aluviales de la Amazonía peruana representan un componente diverso, dinámico y extenso dentro de los bosques de tierras bajas. Estos ecosistemas están amenazados por actividades humanas y el cambio climático, por lo tanto, es necesario desarrollar estudios que permitan entender el estado actual de los bosques aluviales y cómo los procesos antropogénicos y ambientales afectarán el futuro de estos bosques. El presente estudio tiene como objetivo conocer la diversidad florística, la estructura y la densidad de carbono de los bosques pantanosos y estacionalmente inundables de la región Loreto, en el noreste peruano. Establecimos 17 parcelas de 0.5 hectáreas en bosques aledaños a Jenaro Herrera y Veinte de Enero donde se identificaron las especies y se evaluó la biomasa y necromasa sobre el suelo. Los resultados muestran que los bosques pantanosos tienen menor diversidad florística que los bosques estacionalmente inundables debido a la alta abundancia de la palmera Mauritia flexuosa. La cantidad de carbono sobre el suelo (biomasa y necromasa) es similar para ambos tipos de bosque y ambos valores son menores que en los bosques aledaños. También, observamos una marcada diferencia en la estructura del bosque pantanoso, en donde el estrato superior está dominado por la presencia de palmeras de gran diámetro y altura. Estas parcelas forman parte de RAINFOR-Perú una red de monitoreo a largo plazo de los bosques peruanos con el fin de conocer la dinámica natural del bosque y la susceptibilidad al cambio climático.PALABRAS CLAVE: biomasa, bosques inundables y pantanosos, Jenaro Herrera, necromasa, Veinte de Enero. DIVERSITY, STRUCTURE AND CARBON OF THE ALLUVIAL FORESTS IN NORTHEASTERN PERU ABSTRACTAlluvial forests of the Peruvian Amazon represent a diverse, dynamic and extensive component within the lowland forests. These ecosystems are threatened by human activities and climate change, therefore, it is necessary to develop studies to understand the current state of the alluvial forests and how anthropogenic and environmental processes affect the future of these forests. This study aims to determine the floristic diversity, structure and density of carbon of swamp and seasonally flooded forests of Loreto in northeastern Peru. We established 17 plots of 0.5 hectares in forests near Jenaro Herrera and Veinte de Enero where species were identified and aboveground biomass and necromass were assessed. The results showed that the swamp forests have lower floristic diversity than the seasonally flooded forests due to the high abundance of the palm Mauritia flexuosa. The amount of aboveground carbon (biomass and necromass) is similar for both forest types and both values are lower than the surrounding forests. We also observed a marked difference in the structure of the swamp forest, where the upper layer is dominated by the presence of palm trees of large diameter and height. These plots are part of RAINFOR-Peru a network of long-term monitoring of Peruvian forests that aims understanding the natural dynamics of ...

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Low stocks of coarse woody debris in a southwest Amazonian forest

Cited by 89 publications

References 39 publications

Carbon and nitrogen stocks in dead wood of tropical lowland forests as dependent on wood decay stages and land-use intensity

Carbon and nitrogen stocks in dead wood of tropical lowland forests as dependent on wood decay stages and land-use intensity

Soil-induced impacts on forest structure drive coarse woody debris stocks across central Amazonia

Diversidad, Estructura Y Carbono De Los Bosques Aluviales Del Noreste Peruano

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