Questions tagged [nutrient-cycles]

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How does ocean productivity vary with depth?

How does the biological productivity of the ocean vary with depth? (By 'productivity', what I'm actually interested in is production of edible fish, but I suppose other measures like photosynthesis, ...
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Get NPK values of soil without spectroscopy

I stumbled upon this new device called Teralytic. Which can measure salination, NPK values and all sorts of things. Unfortunately it's sold out and I think when it'll be available again rather ...
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What is the relationship between net primary productivity and emergy?

Looking at the Earth system as a whole and considering ecological economics, net primary productivity and emergy are two concepts that strike me as fundamental and likely related. I'm not sure what ...
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