A cross-system analysis of sedimentary organic carbon in the mangrove ecosystems of Xuan Thuy National Park, Vietnam

Tuệ, Nguyễn Tài; Ngọc, Ninh Thị; Quy, Trần Đăng; Hamaoka, Hideki; Nhuận, Mai Trọng; Omori, Koji

doi:10.1016/j.seares.2011.10.006

Cited by 79 publications

(45 citation statements)

References 31 publications

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“…1.5% and ca. 0.15%, respectively) comparable to that found by Tue et al (2012) for another Vietnamese estuary, but lower than most mangrove lined tropical estuaries (Bouillon and Boschker, 2006;Kristensen et al, 2008). The gradual decrease of carbon and nitrogen with depth in the sediment may indicate microbial degradation over time.…”

supporting

confidence: 73%

Temporal changes in physical, chemical and biological sediment parameters in a tropical estuary after mangrove deforestation

Ellegaard

Nguyen

Andersen

et al. 2014

Estuarine, Coastal and Shelf Science

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a b s t r a c tDated sediment cores taken near the head and mouth of a tropical estuary, Nha-Phu/Binh Cang, in south central Viet Nam were analyzed for changes over time in physical, chemical and biological proxies potentially influenced by removal of the mangrove forest lining the estuary. A time-series of satellite images was obtained, which showed that the depletion of the mangrove forest at the head of the estuary was relatively recent. Most of the area was converted into aquaculture ponds, mainly in the late 1990's. The sediment record showed a clear increase in sedimentation rate at the head of the estuary at the time of mangrove deforestation and a change in diatom assemblages in the core from the mouth of the estuary indicating an increase in the water column turbidity of the entire estuary at the time of the mangrove deforestation. The proportion of fine-grained sediment and the d 13 C signal both increased with distance from the head of the estuary while the carbon content decreased. The nitrogen content and the d 15 N signal were more or less constant throughout the estuary. The proportion of fine-grained material and the chemical proxies were more or less stable over time in the core from the mouth while they varied synchronously over time in the core from the head of the estuary. The sediment proxies combined show that mangrove deforestation had large effects on the estuary with regard to both the physical and chemical environment with implications for the biological functioning.

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supporting

confidence: 73%

Temporal changes in physical, chemical and biological sediment parameters in a tropical estuary after mangrove deforestation

Ellegaard

Nguyen

Andersen

et al. 2014

Estuarine, Coastal and Shelf Science

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“…The difference in total stocks is mostly due to lower vegetation carbon values owing to the comparably smaller stature of mangroves in Helodrano Fagnemotse, which is most likely due to the climatic differences between the study areas. Due to the arid nature of the southwest region of Madagascar, this mangrove system receives less rainfall and is likely to be more saline in nature, both of which are environmental parameters that have previously been shown to impact mangrove productivity [11,[57][58][59].…”

Section: Discussionmentioning

confidence: 99%

Mangrove Carbon Stocks and Ecosystem Cover Dynamics in Southwest Madagascar and the Implications for Local Management

Benson

Glass

Jones

et al. 2017

Forests

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Abstract:Of the numerous ecosystem services mangroves provide, carbon storage is gaining particular attention for its potential role in climate change mitigation strategies. Madagascar contains 2% of the world's mangroves, over 20% of which is estimated to have been deforested through charcoal production, timber extraction and agricultural development. This study presents a carbon stock assessment of the mangroves in Helodrano Fagnemotse in southwest Madagascar alongside an analysis of mangrove land-cover change from 2002 to 2014. Similar to other mangrove ecosystems in East Africa, higher stature, closed-canopy mangroves in southwest Madagascar were estimated to contain 454.92 (±26.58) Mg·C·ha −1 . Although the mangrove extent in this area is relatively small (1500 ha), these mangroves are of critical importance to local communities and anthropogenic pressures on coastal resources in the area are increasing. This was evident in both field observations and remote sensing analysis, which indicated an overall net loss of 3.18% between 2002 and 2014. Further dynamics analysis highlighted widespread transitions of dense, higher stature mangroves to more sparse mangrove areas indicating extensive degradation. Harnessing the value that the carbon stored within these mangroves holds on the voluntary carbon market could generate revenue to support and incentivise locally-led sustainable mangrove management, improve livelihoods and alleviate anthropogenic pressures.

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“…In fact, they may be of considerable importance (Spalding et al, 2010). Globally, the total net primary production of mangrove ecosystems has been estimated at 218 ×10 9 kg C year −1 Twilley et al, 1992), ranking as one of the most productive biomes on the earth (Tue et al, 2012). Therefore, the role of mangrove forests in the global carbon budget is significant , but a more refined regional assessment of mangrove CSP is needed to better assess the global carbon budget, particularly in the mangrove ecosystems of Egypt where no data has been published.…”

Section: Introductionmentioning

confidence: 99%

Distribution of soil organic carbon in the mangrove Avicennia marina (Forssk.) Vierh. along the Egyptian Red Sea Coast

Eid

Shaltout

2016

Regional Studies in Marine Science

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A cross-system analysis of sedimentary organic carbon in the mangrove ecosystems of Xuan Thuy National Park, Vietnam

Cited by 79 publications

References 31 publications

Temporal changes in physical, chemical and biological sediment parameters in a tropical estuary after mangrove deforestation

Temporal changes in physical, chemical and biological sediment parameters in a tropical estuary after mangrove deforestation

Mangrove Carbon Stocks and Ecosystem Cover Dynamics in Southwest Madagascar and the Implications for Local Management

Distribution of soil organic carbon in the mangrove Avicennia marina (Forssk.) Vierh. along the Egyptian Red Sea Coast

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