Net Ecosystem Productivity Studies in Mangrove Forests

Poungparn, Sasitorn; Komiyama, Akira

doi:10.7831/ras.1.61

Cited by 12 publications

(6 citation statements)

References 33 publications

(45 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Mangrove forests are regarded as effective sinks of atmospheric carbon because of their high net primary production (NPP) and low heterotrophic respiration (HR) (Alongi 2014, Barr et al 2010, Poungparn & Komiyama 2013. The high NPP is caused by exposure to the warm climate in the tropical zone and the lack of water restriction as soils are regularly submerged by tidal fluctuations and mangroves are tolerant to salinity (Robertson et al 1991, Ross et al 2001, Sherman et al 2003.…”

Section: Introductionmentioning

confidence: 99%

Effects of soil temperature and tidal condition on variation in carbon dioxide flux from soil sediment in a subtropical mangrove forest

et al. 2018

View full text Add to dashboard Cite

Abstract:The variation in CO2 flux from the forest floor is important in understanding the role of mangrove forests as a carbon sink. To clarify the effects of soil temperature and tidal conditions on variation in CO2 flux, sediment–atmosphere CO2 fluxes were measured between June 2012 and May 2013. We used the closed chamber method for two plots, with a 0.5 m difference in elevation (B, high elevation; R-B, low elevation), in a mangrove forest in south-western Japan. CO2 fluxes were highest in the warm season and showed a weak positive correlation with soil temperature in both forests. Estimated monthly CO2 flux showed moderate seasonal variation in accordance with the exposure duration of the soil surface under tidal fluctuation. Additionally, measured CO2 flux and soil temperature were slightly higher in the R-B plot than the B plot, although estimated annual CO2 flux was higher in the B plot than the R-B plot due to different exposure durations. These results suggest that variation in the exposure duration of the forest floor, which changes seasonally and microgeographically, is important in evaluating the annual CO2 flux at a local scale and understanding the role of mangrove ecosystems as regulators of atmospheric CO2.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of soil temperature and tidal condition on variation in carbon dioxide flux from soil sediment in a subtropical mangrove forest

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Table 2 shows the collected annual carbon fluxes based on the eddy covariance method and the summation method. The summation method involves the evaluation of the amount of carbon influx and efflux among various parts of a forest ecosystem [64]. The natural mangroves acted as CO 2 sinks, with NEE values ranging from −249 g C m −2 a −1 to −1076 g C m −2 a −1 , while varying dramatically from site to site (Table 2).…”

Section: Carbon Exchange Between Natural and Managed Mangrovesmentioning

confidence: 99%

Variations in CO2 and CH4 Exchange in Response to Multiple Biophysical Factors from a Mangrove Wetland Park in Southeastern China

et al. 2023

View full text Add to dashboard Cite

Mangrove ecosystems can be both significant sources and sinks of greenhouse gases. The restoration of mangrove forests is increasingly used as a natural climate solution tool to mitigate climate change. However, the estimates of carbon exchanges remain unclear, especially from restored mangroves. In this study, we observed the temporal variations in carbon dioxide (CO2) and methane (CH4) fluxes and their biophysical controls for 4 years, based on a closed-path eddy covariance (EC) system. The measurements were conducted in a mangrove wetland park with 14-year-old restored mangroves surrounded by open waters in Guangdong Province, China. The EC measurements showed that the mangrove ecosystem acted as a CO2 source with a net CO2 ecosystem exchange (NEE) of 305 g C m−2 from January 2019 to May 2020 by the 5-m tower measurement. After the tower was adjusted to 10 m, the mangrove showed a CO2 sink with an NEE of −345 g C m−2 from June 2020 to December 2022. The change in tower height influenced the interpretation of interannual trends on NEE. There were no significant interannual trends in the gross primary productivity (GPP) and the ecosystem respiration (Re) values. The change from CO2 source to sink may be attributed to the decrease in land surface proportion by the tower replacement, which reduces the proportion of the mangrove canopy respiration and, therefore, captures lower CO2 fluxes from open waters. The restored mangroves indicated strong CH4 sources of 23.2–26.3 g C m−2 a−1. According to the random forest analysis, the land surface proportion, radiation, and relative humidity were the three most important predictors of NEE, while the CH4 flux was most sensitive to air temperature. Compared to the natural and long-term restored mangroves, this 14-year-old restored mangrove had not yet achieved a maximum carbon sequestration capability. Our study highlights the need for the careful design of long-term observations from restored mangroves and proposes future needs in the context of carbon neutrality.

show abstract

“…Mangroves and seagrasses ecosystems form significant carbon sinks and each contribute, respectively, to 14 and 15% of the carbon storage capacity of the oceans (Laffoley and Grimsditch 2009;Waycott et al 2009;Donato et al 2011). The respective net productivities of Sonneratia/ Avicennia and Rhizophora mangrove communities are 9.54 tC/ha/year and 10.5 tC/ha/year (Poungparn and Komiyama 2013). These values are applied to Mayotte mangroves.…”

Section: Carbon Sequestrationmentioning

confidence: 99%

Evaluation of coastal and marine ecosystem services of Mayotte: Indirect use values of coral reefs and associated ecosystems

Trégarot

Failler

Maréchal³

2017

International Journal of Biodiversity Science, Ecosystem Servic

View full text Add to dashboard Cite

Coral reefs of Mayotte (342 km 2 ), seagrass beds (7.6 km 2 ) and mangroves (8.5 km 2 ) provide important ecosystem services of which the most important are the coastal protection, fish biomass production, carbon sequestration and water purification. The quantity and quality of these services have been decreasing steadily for several years and should continue to do so if no action is taken to contain anthropogenic pressures. The coral cover of the fringing reefs and the barrier reef has thus declined, respectively, by 60% in 15 years and 15% in 8 years. The pioneer front of Sonneratia for mangroves has declined by 13% in 6 years, and for seagrass beds, the water quality suggests a degraded state. The estimated annual value of these services amounts to EUR 124 million. It would be EUR 162 million if the ecosystems were in pristine conditions. The article shows that the preservation of coastal ecosystems is essential from an economic point of view. ARTICLE HISTORY

show abstract

Net Ecosystem Productivity Studies in Mangrove Forests

Cited by 12 publications

References 33 publications

Effects of soil temperature and tidal condition on variation in carbon dioxide flux from soil sediment in a subtropical mangrove forest

Effects of soil temperature and tidal condition on variation in carbon dioxide flux from soil sediment in a subtropical mangrove forest

Variations in CO2 and CH4 Exchange in Response to Multiple Biophysical Factors from a Mangrove Wetland Park in Southeastern China

Evaluation of coastal and marine ecosystem services of Mayotte: Indirect use values of coral reefs and associated ecosystems

Contact Info

Product

Resources

About