Litterfall in the hardwood forest of a minor alluvial-floodplain

Meier, Carine; Stanturf, John A.; Gardiner, Emile S.

doi:10.1016/j.foreco.2006.06.026

Cited by 20 publications

(12 citation statements)

References 37 publications

(78 reference statements)

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“…Similarly to Meier et al (2006) and González (2012) who attributed differences in litterfall productivity to species composition, our results showed a significant influence of the tree species on C sequestration in litterfall. Including the distance to the low groundwater table as an interaction term in our model showed that litterfall production of P. alba was significantly lower compared to S. alba, F. excelsior, and Q. robur, indicating that P. alba was less tolerant to lower groundwater tables.…”

Section: Discussionsupporting

confidence: 87%

“…At the same time, frequent and long-term flooding along with water saturation in the soil may also lead to reduced aboveground NPP (Megonigal et al 1997, Rieger et al 2013) and fine root amount and production (Day et al 1988, Day and Megonigal 1993, Baker et al 2001, Kiley and Schneider 2005. The resulting C sequestration patterns may be further modified by sedimentation rates (Cavalcanti and Lockaby 2005), the flooding tolerance of tree species Chambers 2003, Predick et al 2009), tree species richness (Giese et al 2000), forest stand parameters (Giese et al 2003, Meier et al 2006, Cierjacks et al 2011) and by the seasonality of flooding (see Day et al 1988 for aboveground production; Day et al 1988 andChambers 2003 for fine-root production).…”

Section: Introductionmentioning

confidence: 99%

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Drivers of carbon sequestration by biomass compartment of riparian forests

2015

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Riparian 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.DFG, CI 175/1, Steuergrößen der Kohlenstoffdynamik im Boden und in der Vegetation von Auwälder

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Drivers of carbon sequestration by biomass compartment of riparian forests

2015

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“…In this study, litterfall values for RF plots (672 g m −2 yr −1 ) were similar to those reported elsewhere for Southeastern fl oodplain forests. Meier et al (2006) found averages between 759 and 870 g m −2 yr −1 in a Louisiana fl oodplain forest, while Conner (1994) reported a range from 420 to 574 g m −2 yr −1 in fl oodplain forests from other studies in the Southeast. Schilling and Lockaby (2006) reported 480 and 500 g m −2 yr −1 from the fl oodplains of the Satilla (a blackwater system) and Altamaha (a redwater system) Rivers, respectively, in Georgia.…”

Section: Litterfallmentioning

confidence: 83%

Productivity of Ephemeral Headwater Riparian Forests Impacted by Sedimentation in the Southeastern United States Coastal Plain

Jolley

Lockaby

Cavalcanti³

2009

J of Env Quality

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Riparian forests serve an essential function in improving water quality through the filtering of sediments and nutrients from surface runoff. However, little is known about the impact of sediment deposition on productivity of riparian forests. Sediment inputs may act as a subsidy to forest productivity by providing additional nutrients for plant uptake or may act as a stress by creating anoxic soil conditions. This study determined how sediment deposition affected riparian forests along ephemeral headwater streams at Ft. Benning, Georgia, USA. Above- and belowground productivity, leaf-area index (LAI), and standing crop biomass for fine roots, shrubs, and trees were compared along a gradient of present sedimentation rates in 17 riparian forests. Annual litterfall production was determined from monthly collections using 0.25- m(2) traps; woody biomass was determined from annual diameter at breast height (DBH) measurements using species-specific allometric equations; fine root productivity was determined using sequential coring; LAI was measured by expanding specific leaf area by annual litterfall production; and shrub biomass was determined using species-specific biomass equations based on height and root collar diameter. Significant declines in litterfall, woody biomass production, fine root production, LAI, and shrub biomass were found with as little as 0.1 to 0.4 cm yr(-2) sedimentation. We conclude that the levels of sedimentation in this study do not subsidize growth in ephemeral headwater riparian forests but instead create a stress similar to that found under flooded conditions.

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“…Comparative studies of permanently vs. periodically flooded forests also find higher annual leaf and litterfall mass on periodically flooded conditions ( Van et al 2002, Meier et al 2006. Periodic floods allow for higher annual productivity due to longer growing seasons as opposed to permanently flooded conditions where the soil is anaerobic (Kozlowski 1997).…”

Section: Spathodea Forests Vs Othersmentioning

confidence: 99%

Flooding and profuse flowering result in high litterfall in novelSpathodea campanulataforests in northern Puerto Rico

Martínez

2011

Ecosphere

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Abstract. The African tulip tree, Spathodea campanulata, dominates many post-agricultural secondary forests in the moist tropics. Some consider these novel forests have no ecological value, yet they appear to restore ecosystem processes on degraded sites. This study describes the litterfall mass and seasonality, canopy phenology, and microclimate of S. campanulata forests on alluvial and karst substrates in northern Puerto Rico. These substrates have different water drainage properties and I hypothesized that (1) annual leaf fall mass and seasonality would differ between substrate types; because (2) leaf fall would be related to water availability and seasonality. I used analysis of variance to compare annual and biweekly litterfall mass across three sites on each substrate type, and multiple linear regression analysis to relate biweekly litterfall to environmental variables. Litterfall mass was high (13.8 MgÁha À1 Áyr À1, n ¼ 6, SE ¼ 0.60) yet its components did not differ by substrate type except for reproductive part mass which was higher on karst due to more S. campanulata flowers. Leaf fall had a bimodal seasonality and was negatively related to the number of dry days indicating it occurs when water is readily available or in excess as during floods. Observations show systematic leaf senescence in this deciduous species can be caused by water and nutrient demand from flowering. Litterfall mass and seasonality of novel S. campanulata forests is similar to that of native forests in Puerto Rico, yet flower fall appears to be higher than that of tropical forests worldwide. The environmental variables that affect litterfall seasonality and canopy phenology are similar to those in tropical forests in Puerto Rico and elsewhere. Litterfall seasonality and canopy phenology regulate understory microclimate, and influence the establishment and growth of juvenile trees and other organisms within S. campanulata forests. This study illustrates how forest ecosystem processes and properties restored by novel S. campanulata forests facilitate tree species establishment, growth, and turnover in deforested, abandoned, and degraded agricultural lands in Puerto Rico.

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Litterfall in the hardwood forest of a minor alluvial-floodplain

Cited by 20 publications

References 37 publications

Drivers of carbon sequestration by biomass compartment of riparian forests

Drivers of carbon sequestration by biomass compartment of riparian forests

Productivity of Ephemeral Headwater Riparian Forests Impacted by Sedimentation in the Southeastern United States Coastal Plain

Flooding and profuse flowering result in high litterfall in novelSpathodea campanulataforests in northern Puerto Rico

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