Measuring daytime CO2 fluxes from the inter-tidal mangrove soils of Indian Sundarbans

Chanda, Abhra; Akhand, Anirban; Manna, Sudip; Dutta, Sachinandan; Das, I.; Hazra, Sugata; Rao, K. H.; Dadhwal, V. K.

doi:10.1007/s12665-013-2962-2

Cited by 31 publications

(14 citation statements)

References 32 publications

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“…When converted into CO 2 -equivalent, considering its 100year global warming potential (Myhre et al, 2013), CH 4 represented 1% of the total emissions measured (CO 2 + CH 4 ). CH 4 emissions were in the same range as those measured in previous studies, as for instance in the Sundarbans, where CH 4 fluxes ranged from 1.97 to 567.12 μmol m −2 day − 1 (Biswas et al, 2007;Chanda et al, 2013), or in Australia, where CH 4 fluxes ranged from 30 to 520 μmol m −2 day − 1 (Kreuzwieser et al, 2003). Eventually, CH 4 emissions were also in the same range as those reported by (Chen et al, 2014) in Indonesia (−145.2 to 315.36 μmol m −2 day − 1 ).…”

Section: Mangrove Soils As a Net Source Of Co 2 And Ch 4 To The Atmossupporting

confidence: 75%

“…Air temperature was recorded before each measurement by a handheld thermometer. The relationships between CO 2 and CH 4 fluxes and temperature were estimated on an exponential basis (Lloyd and Taylor, 1994), and then, Q 10 ratios, which represent the factor to be multiplied to the fluxes for a 10°C rise, were calculated using the equation described by Xu and Qi (2001) and Chanda et al (2013).…”

Section: Air Temperature and Chlorophyll-amentioning

confidence: 99%

“…For a specific area, several environmental factors have been shown to influence the emissions of greenhouse gases to the atmosphere from mangrove soils, such as soil water content, organic matter content, or even salinity (Bulmer et al, 2015;Chanda et al, 2013;Chen et al, 2016b;Chen et al, 2014;Chen et al, 2012;Kirui et al, 2009;Leopold et al, 2015;Leopold et al, 2013;Livesley and Andrusiak, 2012;Poungparn et al, 2009). Seasonal changes in temperature is also an important parameter involved in the variability of greenhouse gas emissions, affecting the rates of soil organic matter decay, and thus GHG production and emissions (Barroso-Matos et al, 2012;Conant et al, 2011;Davidson and Janssens, 2006;Fang and Moncrieff, 2001;Fierer et al, 2005;Mackey and Smail, 1996).…”

Section: Introductionmentioning

confidence: 99%

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Biofilm and temperature controls on greenhouse gas (CO2 and CH4) emissions from a Rhizophora mangrove soil (New Caledonia)

Jacotot

Marchand

Allenbach

2019

Science of The Total Environment

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Section: Mangrove Soils As a Net Source Of Co 2 And Ch 4 To The Atmossupporting

confidence: 75%

Section: Air Temperature and Chlorophyll-amentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Biofilm and temperature controls on greenhouse gas (CO2 and CH4) emissions from a Rhizophora mangrove soil (New Caledonia)

Jacotot

Marchand

Allenbach

2019

Science of The Total Environment

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“…Monitoring of flux rates for all ponds took approximately 6 h, from 10 am to 4 pm, with each pond sampled in the same order and at roughly the same time on each of the survey days to focus on how the fluxes changed from individual ponds across the sample period. Whilst fluxes from systems are known to vary throughout the day it is this central period at which flux rates are most stable (Chanda et al, 2013).…”

Section: Site Descriptionmentioning

confidence: 99%

Quantifying rapid spatial and temporal variations of CO2 fluxes from small, lowland freshwater ponds

et al. 2016

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Small ponds comprise a substantial portion of the total area of the Earth's inland waters. They can be powerful carbon sinks or sources, potentially significant processors of organic carbon. Our understanding of their role is constrained by the absence of information regarding their CO 2 fluxes (F CO 2) and how these change with wet or dry phases and across distinct pond plant communities. We monitored the F CO 2 from 26 neighbouring small ponds over a 2-week drying period in late summer in 2014. The mean F CO 2 on day 1 (-641 ± 1490 mg m-2 day-1) represented a net intake across the site. As ponds dried they switched to becoming CO 2 sources resulting in a net site emission of CO 2 by day 12 (3792 ± 2755 mg m-2 day-1) although flux rates did not vary systematically between plant communities. Significant variability in the F CO 2 was observed amongst adjacent ponds on individual sampling days, resulting in marked spatial heterogeneity in CO 2 processing. This large degree of temporal and spatial heterogeneity across short time periods and small distances highlights the variability in the F CO 2 from temporary systems, making it hard to generalize their role in carbon cycle models.

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“…In addition, tides can also influence GHG emissions towards the atmosphere since gas diffusion differs when the soil is immerged or unsaturated. Recently, many studies focused on CO 2 or CH 4 emissions at the soil-air interface at low tide (Bulmer et al, 2015;Chanda et al, 2013;Chauhan et al, 2015;Chen et al, 2016;Chen et al, 2010;Leopold et al, 2013Leopold et al, , 2015Livesley and Andrusiak, 2012;Wang et al, 2016), or at the water-air interface in adjacent tidal creeks (Borges et al, 2003;Bouillon et al, 2003b;Call et al, 2015;Maher et al, 2015). However, to our knowledge, no study focused on water to atmosphere GHG emissions when the forest is inundated, which may frequently occur, depending on the tidal range and the position of the forest in the intertidal zone.…”

Section: Introductionmentioning

confidence: 99%

Tidal variability of CO2 and CH4 emissions from the water column within a Rhizophora mangrove forest (New Caledonia)

Jacotot

Marchand

Allenbach

2018

Science of The Total Environment

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We performed a preliminary study to quantify CO and CH emissions from the water column within a Rhizophora spp. mangrove forest. Mean CO and CH emissions during the studied period were 3.35±3.62mmolCmh and 18.30±27.72μmolCmh, respectively. CO and CH emissions were highly variable and mainly driven by tides (flow/ebb, water column thickness, neap/spring). Indeed, an inverse relationship between the magnitude of the emissions and the thickness of the water column above the mangrove soil was observed. δCO values ranged from -26.88‰ to -8.6‰, suggesting a mixing between CO-enriched pore waters and lagoon incoming waters. In addition, CO and CH emissions were significantly higher during ebb tides, mainly due to the progressive enrichment of the water column by diffusive fluxes as its residence time over the forest floor increased. Eventually, we observed higher CO and CH emissions during spring tides than during neap tides, combined to depleted δCO values, suggesting a higher contribution of soil-produced gases to the emissions. These higher emissions may result from higher renewable of the electron acceptor and enhanced exchange surface between the soil and the water column. This study shows that CO and CH emissions from the water column were not negligible and must be considered in future carbon budgets in mangroves.

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Measuring daytime CO2 fluxes from the inter-tidal mangrove soils of Indian Sundarbans

Cited by 31 publications

References 32 publications

Biofilm and temperature controls on greenhouse gas (CO2 and CH4) emissions from a Rhizophora mangrove soil (New Caledonia)

Biofilm and temperature controls on greenhouse gas (CO2 and CH4) emissions from a Rhizophora mangrove soil (New Caledonia)

Quantifying rapid spatial and temporal variations of CO2 fluxes from small, lowland freshwater ponds

Tidal variability of CO2 and CH4 emissions from the water column within a Rhizophora mangrove forest (New Caledonia)

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