Decomposition of mangrove litter under experimental nutrient loading in a fringe Rhizophora mangle (L.) forest

Jessen, Brita; Oviatt, Candace A.; Rossi, Ryann; Duball, Chelsea; Wigand, Cathleen; Johnson, David Samuel; Nixon, Scott W.

doi:10.1016/j.ecss.2020.106981

Cited by 4 publications

(3 citation statements)

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“…Simpson et al (2020) found that decomposition was significantly different across nutrient treatments after 30 and 60 days, but by 180 days decay rates had stabilized across treatments. Furthermore, some researchers found that nutrient treatments had no significant effect on root litter decomposition (Jessen et al, 2021; McKee et al, 2007; Simpson et al, 2020), while others found that decay rates were nutrient‐specific (Albright, 1976; Huxham et al, 2010; Poret et al, 2007). This may suggest that nutrient enrichment does not necessarily play a dominant role in mangrove litter decomposition, but that other biotic and abiotic factors, which are spatially and temporally dependent, are more important covariates to be considered for an accurate prediction of decomposition rates.…”

Section: Discussionmentioning

confidence: 99%

“…Nutrient loading to mangrove habitats has the potential to increase decomposition indirectly through altered litter quality (Hobbie et al, 2012;Prescott, 2010) and microbial community productivity (Alongi et al, 2005;Norris et al, 2001;Rivera-Monroy & Twilley, 1996). Of the 11 nutrient addition studies included in this systematic review, several found no significant differences in leaf or root litter decomposition under N, NP, or P treatments as compared with controls (Contreras et al, 2017;Feller et al, 1999;Hayes et al, 2017;Jessen et al, 2021;Keuskamp et al, 2015), whereas Ainley and Bishop (2015) found that Avicennia marina decomposed faster in eutrophied vs. unmodified estuaries. Simpson et al (2020) found that decomposition was significantly different across nutrient treatments after 30 and 60 days, but by 180 days decay rates had stabilized across treatments.…”

Section: Nutrient Loadingmentioning

confidence: 98%

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Do global change variables alter mangrove decomposition? A systematic review

Simpson,

Chapman,

Simpson

et al. 2023

Global Ecol Biogeogr

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AimGlobal change is expected to modify the magnitude and trajectory of organic matter decomposition in mangrove ecosystems. Yet, the degree and direction of that change is unknown, especially considering the large C storage potential that mangroves provide. We performed a systematic review of primary literature to examine the relationships between genus‐specific litter quality, latitude or other global change proxies and decomposition of mangrove litter fractions.LocationGlobal.Time Period1976–2021.TaxonMangroves.MethodsWe compiled a dataset of 480 decomposition rates, including species, litter fraction, latitude, and relevant biophysical data. We investigated the influence of genera, tissue type, latitude, and global change proxies on decomposition rates using linear models and qualitative approaches. We also performed calculations to determine the potential importance of the decomposition process on the root litter biomass C pool in the context of blue C significance.ResultsCollectively, latitudinal relationships suggest that factors other than temperature, such as tissue type and genus, may regulate decay rates within mangroves' distributional range. Decay rates of leaf litter, roots, and wood converged on a value of 0.009 ± 0.0005, 0.002 ± 0.0001, and 0.001 ± 0.0003, respectively, across continents and geomorphological settings. Our calculations suggest that small changes in decomposition rate will not elicit large changes in blue C storage potential.ConclusionsThe main drivers behind variability in mangrove biomass decay rates detected across the distributional range remain uncertain. However, the small latitudinal range that mangroves inhabit and the submerged environment within which litter decomposes suggest that decay depends on species‐specific responses or biotic interactions among species to global change drivers. Few studies have examined global change impacts directly, and variability in decay and lack of representation of some mangrove groups in the literature suggest that implications for blue C are important to consider.

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Section: Discussionmentioning

confidence: 99%

Section: Nutrient Loadingmentioning

confidence: 98%

Do global change variables alter mangrove decomposition? A systematic review

Simpson,

Chapman,

Simpson

et al. 2023

Global Ecol Biogeogr

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“…The value of supporting services from the most important mangrove ecosystem is the provision of nutrient sources through litter production for the productivity of coastal waters in Tangerang Regency. Mangrove litter is a major component of primary productivity because it is an important carbon source in decomposition [30]. Mangrove litter in the form of leaves, twigs, and other parts will fall and decompose so that it enters the energy system that produces fishery potential.…”

Section: A Identification Ecological Systems Of Mangrove Ecosystem Go...mentioning

confidence: 99%

Interactive Governance for Mangrove Social-Ecological System in Tangerang Regency: A DPSIR Approach

Mahardika,

Yulianda,

Adrianto

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

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A conceptual model is needed to determine the interaction of ecological and social systems in the governance of a sustainable mangrove ecosystem. The SES approach can be used to analyze the management of mangrove ecosystem areas on the interaction or connectivity of functional system relationships. This research analyzes the social-ecological system (SES) model in managing mangrove ecosystem areas in Tangerang Regency. This research is a descriptive case study, where data collection is carried out through surveys, field observations, and literature studies. Analysis of SES problems with the DPSIR (Driving-force, Pressure, State, Impact, and Response) approach shows that the issues of governance of mangrove ecosystems in Tangerang Regency are driven by the mangrove ecosystem services themselves, population increase, space utilization, economic activities, and the welfare level and knowledge of sustainable ecosystem management. These driving factors cause pressure on the mangrove ecosystem due to the conversion of land functions and activities of ecosystem utilization, causing environmental degradation conditions and increasingly intensive use of mangrove ecosystems. These conditions cause impacts on the socio-ecological system, namely spatial use conflicts, deforestation, environmental pollution, the decline in ecosystem functions, abrasion and accretion, tidal flooding, and social conflicts. These impacts can be suppressed, mitigated, improved, and minimized through mangrove ecosystem governance policies, namely rehabilitation and restoration, ecotourism development, coastal border conservation, silvofishery ponds, coastal community development movement programs, increased public education, and cooperative management based.

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