Wetlands are known to sequester atmospheric CO₂ in biomass and sediments, often referred to as “blue carbon” of the ocean. The present research has tried to focus on depth-wise (0-10, 10-20, 20-30, 30-40 and 40-50 cm) profile of sediment organic carbon (OC) along with temperature, pH, electrical conductivity (EC) and bulk density (BD) seasonally in Bhitarkanika wetlands at five different locations for two years 2016-17 and 2017-18, respectively. Variation of sediment temperature with depth ranged from 21.32±0.76 to 34.13±0.58 °C, pH ranged from 4.8±0.28 to 6.6±0.75, EC ranged from 0.167±0.08 to 1.814±1.89 Sm^-1, BD ranged from 740±0.06 to 125±0.17 kg m^-3 and OC ranged from 0.24±0.14 to 3.57±0.80 %, respectively. Variation of OC between season, depth and stations has been proved through ANOVA analysis. The study revealed approximately 22.45±11.24 to 63.51± 37.84 t ha^-1 CO₂ equivalent is being absorbed by the sediment compartment in this mangrove ecosystem, confirming the potentiality of mangrove sediment as a sink of carbon dioxide.

中文翻译：

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印度 Bhitarkanika 湿地沉积物有机碳储量的变化

众所周知，湿地可以将大气中的 CO ₂隔离在生物质和沉积物中，通常被称为海洋的“蓝碳”。目前的研究试图集中在深度（0-10、10-20、20-30、30-40 和 40-50 cm）沉积物有机碳 (OC) 剖面以及温度、pH、电导率（分别在 2016-17 年和 2017-18 年两年内在五个不同地点的 Bhitarkanika 湿地的季节性 EC）和容重（BD）。随深度沉淀温度变化范围从21.32±0.76 34.13到±0.58℃，pH值从4.8±0.28范围至6.6±0.75，EC从0.167±0.08范围至1.814±1.89的Sm ^-1，BD从740±0.06范围到125±0.17公斤·m ^-3和 OC 的范围分别为 0.24±0.14 至 3.57±0.80%。通过方差分析证明了季节、深度和站点之间 OC 的变化。该研究表明，该红树林生态系统中的沉积物隔室吸收了大约 22.45±11.24 至 63.51±37.84 t ha ^-1 CO ₂当量，证实了红树林沉积物作为二氧化碳汇的潜力。