Will restored mangrove forests enhance sediment organic carbon and ecosystem carbon storage?

Pham, Van Hieu; Dũng, Lưu Việt; Tuệ, Nguyễn Tài; Omori, Koji

doi:10.1016/j.rsma.2017.05.003

Cited by 40 publications

(23 citation statements)

References 49 publications

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“…Kokkaddicholai may have experienced a major loss in C stored in biomass from mangrove plants and soil C due to the land conversion. Other studies in Vietnam further concluded that mangrove restoration programs, mangrove regeneration after typhoons, and forest maturity contribute considerably to increased ecosystem C storage in both above‐ and below‐ground C stocks, which further showcase the potential for further storage if the mangroves were not converted to other land uses, but restored and conserved (Dung et al ., ; Pham et al ., ). A study on mangrove stands in western Sri Lanka estimated the mangroves’ capacity to sequester the same amount of CO 2 emitted from combusting 19 356.63 L of diesel or 22 211.79 L of gasoline in motor vehicles (Perera & Amarasinghe, ).…”

Section: Mangrove Resources and Human Disturbancesmentioning

confidence: 97%

Carbon stock assessment of mangrove ecosystems in Batticaloa Lagoon, Sri Lanka, with different degrees of human disturbances

Jonsson

Hedman

2018

Singap J Trop Geogr

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This article presents a carbon stock assessment to illustrate the organic carbon distribution and storage within mangrove ecosystems in Sri Lanka. The living tree biomass and soil carbon pools were investigated in three sites with varying degree of human disturbance in Batticaloa Lagoon. Soil carbon content was derived by the Walkley Black method from soil samples and mangrove trees were measured for calculations in general allometric equations. The mangroves that were extremely converted into a shrimp farm in Kokkaddicholai recorded a carbon (C) stock of 100.9 kg m‐2. Dominated by the poisonous Excoecaria agallocha stands, the regenerating mangroves in Manmunai Bridge Island hosted the largest C stock measuring 786.4 kg C m‐2. The Kannankudah site—dominated by Avicennia marina, Lumnitzera racemosa and Excoecaria agallocha stands, recorded a C stock of 593.1 kg C m‐2. Cuts and stumps indicated wood harvesting for local livelihoods. The soil C content pool contributed most significantly to the total C stock, with the top 30 cm containing the largest C concentration in all soil profiles. The soil carbon content was highest (5.1 per cent) in Kannankudah, second highest (3.6 per cent) in the disturbed but regenerating forest at Manmunai Bridge Island, and the lowest (0.3 per cent) at the converted site of Kokkaddicholai.

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Section: Mangrove Resources and Human Disturbancesmentioning

confidence: 97%

Carbon stock assessment of mangrove ecosystems in Batticaloa Lagoon, Sri Lanka, with different degrees of human disturbances

Jonsson

Hedman

2018

Singap J Trop Geogr

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“…Despite the importance of mangrove forests as habitat for marine biota, coastal protection, and carbon sink (Barbier et al ; Mcleod et al ; Lee et al ; Sasmito et al ), massive losses and degradation of mangrove forests have occurred in recent decades due to land conversions for agriculture, mariculture, urbanization activities, and climate change (Valiela et al ; Alongi ; Pham et al ). Mangrove restoration, therefore, has been performed around the world to compensate for the loss of mangrove and to restore degraded mangrove forests (Das et al ; Field ; Pham et al ).…”

Section: Introductionmentioning

confidence: 99%

Fate of leaf litter in restored Kandelia obovata (S. L.) mangrove forests with different ages in Jiulong River Estuary, China

Chen

et al. 2019

Restoration Ecology

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Ecological processing of leaf litter plays important roles in carbon dynamics of mangrove forests. Fate of leaf litter, that is, removal by crabs, microbial decomposition, and tidal export was quantified in two restored Kandelia obovata forests with ages of 24 years and 48 years, respectively, from December 2009 to November 2010. Crab abundance was also investigated to test the role of crabs in leaf litter processing. Daily leaf litter production was 1.064 ± 0.108 g C m−2 day−1 at the 24‐year forest and was 0.689 ± 0.040 g C m−2 day−1 at the 48‐year forest. Annual mean removal of leaf litter by crabs was lower at the 24‐year forest than at the 48‐year forest (0.177 ± 0.046 g C m−2 day−1 vs. 0.220 ± 0.050 g C m−2 day−1), due to a higher crab abundance at the older forest. Microbial decomposition and change in standing stock of leaf litter on the forest floor made a negligible contribution to the annual leaf litter production. Tidal exports of leaf litter were estimated as 0.875 ± 0.090 g C m−2 day−1 and 0.458 ± 0.086 g C m−2 day−1 at the 24‐year and 48‐year forests, respectively, accounting for 82.2% and 66.5% of their daily leaf litter production. Turnover rate of leaf litter was higher at the younger forest (1.7 ± 0.4 day−1) than the older forest (1.2 ± 0.3 day−1). Removal of leaf litter by crabs was higher in warm months while tidal export of leaf litter showed a much less apparent seasonal pattern. Spatial variations of crab removal and tidal export of leaf litter with forest zones were observed within each forest, while microbial decomposition of leaf litter was comparable among the different zones. These indicated that the ecosystem functions of restored mangrove forest could not reach a level equivalent to those of a mature forest even 24 years after restoration.

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“…Consequently, the Electronic supplementary material The online version of this article (https ://doi.org/10.1007/s4245 2-019-1581-2) contains supplementary material, which is available to authorized users. mangrove forests are the largest carbon sink, leading to reduction in carbon emissions [5]. True to its sense, several researchers pointed out that the mangroves are considered as the potential source of atmospheric CO 2 and CH 4 [6,7].…”

Section: Introductionmentioning

confidence: 99%

Influence of physico-chemical parameters and pCO2 concentration on mangroves-associated polychaetes at Pichavaram, southeast coast of India

et al. 2019

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Studies related to partial pressure of carbon dioxide (pCO 2) concentration linking with polychaete diversity in mangrove ecosystems are limited in time and space. Therefore, the present study was conducted during July 2017-June 2018 on a monthly interval and reported the concentration of pCO 2 coupled with physico-chemical parameters in relation to polychaetes diversity in Pichavaram mangroves ecosystem, southeast coast of India. Totally, 41 species were identified and the most dominant species were Prionospio cirrifera, P. cirrobranchiata, P. sexoculata, Prionospio sp. and Capitella capitata. Among the stations, higher polychaete diversity was found in marine zone compared to other zones. The correlation reflected a significant positive linear relationship between dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), particulate organic carbon (POC) and CO 2 versus pCO 2. The carbon species DIC, DOC, POC and pCO 2 concentration ranged from 1100.1 to 2053.3(µmol/kg), 165.7-1954.0(µmol/kg), 4.5-89.2(µmol/kg) and 184.7-3763.1(µatm), respectively. Further, the statistical analyses revealed that there was a strong correlation among carbon species with distribution of polychaete species in various zones of mangroves and thus indicating pivotal role in occurrence of polychaetes in mangroves.

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Will restored mangrove forests enhance sediment organic carbon and ecosystem carbon storage?

Cited by 40 publications

References 49 publications

Carbon stock assessment of mangrove ecosystems in Batticaloa Lagoon, Sri Lanka, with different degrees of human disturbances

Carbon stock assessment of mangrove ecosystems in Batticaloa Lagoon, Sri Lanka, with different degrees of human disturbances

Fate of leaf litter in restored Kandelia obovata (S. L.) mangrove forests with different ages in Jiulong River Estuary, China

Influence of physico-chemical parameters and pCO2 concentration on mangroves-associated polychaetes at Pichavaram, southeast coast of India

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