Fig. 3: Eelgrass carbon budget. | Communications Earth & Environment

Fig. 3: Eelgrass carbon budget.

From: Blue carbon sequestration dominated by dissolved organic carbon pathways for kelp forests and eelgrass meadows in Nova Scotia, Canada

Fig. 3

Carbon budget totals for the eelgrass Zostera marina, including the total amount (upper bound) of carbon estimated to be sequestered by eelgrass in the bioregion, estimated by summing quantities in the blue boxes only. Dashed lines indicate unknown quantities. Line weights indicate the relative flux through each pathway. DOC is dissolved organic carbon, POC is particulate organic carbon, L is labile, and R is refractory. Data are annual totals or means ±1 standard deviation. The inset pie chart shows the relative contribution (as a percentage) of each carbon pathway towards the total carbon sequestration estimate by eelgrass, with colors representing different pathways (orange: burial within seagrass meadows, blue: burial in bare sediments, green: non-seagrass burial within seagrass meadows, yellow: POC export, and dark blue: DOC export).

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