redfieldNP: Redfield's (1934) NO3 and PO4 data

Description Usage Source References See Also Examples

Description

Data digitized from Redfield's (1934) Figure 1, showing NO3 dependence on PO4. This dataset is used in Chapter 4 of [1].

Usage

1

Source

Data digitized by Dan Kelley from a scanned copy of Redfield's (1934) Figure 1, showing the dependence of NO3 on PO4.

References

Dan Kelley, in preparation. Oceanographic Analysis with R. Springer Verlag.

Alfred C. Redfield, 1934. On the proportions of organic derivations in sea water and their relation to the composition of plankton. Pages 177–192 in James Johnstone Memorial Volume, University Press of Liverpool.

See Also

See redfieldNC and redfieldPlankton.

Examples

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## Not run: 
data(redfieldNP, package="ocedata")
plot(redfieldNP$PO4, redfieldNP$NO3, xlab=expression(PO[4]), ylab=expression(NO[3]))
abline(0, 20, lwd=3)                   # line N:P = 20:1, as shown by Redfield

## End(Not run)

ocedata documentation built on May 2, 2019, 3:39 p.m.