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#biogeochemical cycle

2 public questions tagged with this topic.

Ecosystem Cycles

Dimethylsulfide is involved in which cycle?

“Sulfur” for dimethylsulfide is involved in which cycle. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. The relevant inference should follow the pathway from resource supply to organismal uptake and then to ecosystem-level flux. Productivity, trophic transfer, decomposition, and nutrient regeneration are connected, but each measures a different part of that pathway. The remaining alternatives—“Carbon”, “Nitrogen”, “Phosphorus”—refer to different states, processes, or scales and therefore do not e

Ref: Ecology: From Individuals to Ecosystems, Begon et al., 5th Ed., Ch. 18

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Ecosystem Cycles

Which cycle has equal lithospheric and atmospheric phases?

“Sulfur” for which cycle has equal lithospheric and atmospheric phases. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Ecosystem processes are constrained by energy conservation and by the cycling of matter. Energy enters mainly through primary production, is lost as metabolic heat at every transfer, and therefore cannot be recycled in the way that carbon, nitrogen, phosphorus, or water can. The remaining alternatives—“Carbon”, “Phosphorus”, “Nitrogen”—refer to different states, processes, or sca

Ref: Ecology: From Individuals to Ecosystems, Begon et al., 5th Ed., Ch. 18

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