Next Article in Journal
Lasers for Satellite Uplinks and Downlinks
Previous Article in Journal
Portable XRF Quick-Scan Mapping for Potential Toxic Elements Pollutants in Sustainable Urban Drainage Systems: A Methodological Approach
Previous Article in Special Issue
Process Controls of the Live Root Zone and Carbon Sequestration Capacity of the Sundarbans Mangrove Forest, Bangladesh
Perspective

Global Significance of Mangrove Blue Carbon in Climate Change Mitigation

Tropical Coastal & Mangrove Consultants, 52 Shearwater Drive, Pakenham, VIC 3810, Australia
Received: 9 July 2020 / Accepted: 13 July 2020 / Published: 21 August 2020
(This article belongs to the Special Issue Climate Change Impacts on Mangrove Ecosystems)
Mangrove forests store and sequester large area-specific quantities of blue carbon (Corg). Except for tundra and peatlands, mangroves store more Corg per unit area than any other ecosystem. Mean mangrove Corg stock is 738.9 Mg Corg ha−1 and mean global stock is 6.17 Pg Corg, which equates to only 0.4–7% of terrestrial ecosystem Corg stocks but 17% of total tropical marine Corg stocks. Per unit area, mangroves sequester 179.6 g Corg m−2a−1 and globally about 15 Tg Corg a−1. Mangroves sequester only 4% (range 1.3–8%) of Corg sequestered by terrestrial ecosystems, indicating that mangroves are a minor contributor to global C storage and sequestration. CO2 emissions from mangrove losses equate to 0.036 Pg CO2-equivalents a−1 based on rates of C sequestration but 0.088 Pg CO2-equivalents a−1 based on complete destruction for conversion to aquaculture and agriculture. Mangrove CO2 emissions account for only 0.2% of total global CO2 emissions but 18% of CO2 emissions from the tropical coastal ocean. Despite significant data limitations, the role of mangrove ecosystems in climate change mitigation is small at the global scale but more significant in the tropical coastal ocean and effective at the national and regional scale, especially in areas with high rates of deforestation and destruction. View Full-Text
Keywords: blue carbon; carbon; carbon stock; carbon sequestration; climate change; CO2 emissions; mangrove; mitigation blue carbon; carbon; carbon stock; carbon sequestration; climate change; CO2 emissions; mangrove; mitigation
Show Figures

Figure 1

MDPI and ACS Style

Alongi, D.M. Global Significance of Mangrove Blue Carbon in Climate Change Mitigation. Sci 2020, 2, 67. https://doi.org/10.3390/sci2030067

AMA Style

Alongi DM. Global Significance of Mangrove Blue Carbon in Climate Change Mitigation. Sci. 2020; 2(3):67. https://doi.org/10.3390/sci2030067

Chicago/Turabian Style

Alongi, Daniel M. 2020. "Global Significance of Mangrove Blue Carbon in Climate Change Mitigation" Sci 2, no. 3: 67. https://doi.org/10.3390/sci2030067

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop