Nutrient losses in runoff from grassland and shrubland habitats in southern New Mexico: I. Rainfall simulation experiments --SUMMARY of SHRUB nitrogen and phosphorus chemistry

This data set was collected to provide data for comparison of the losses
of dissolved nitrogen and phosphorus in the runoff from grass- and shrub-
dominated plots in the Jornada Basin of southern New Mexico. This
summary dataset contains the following columns for the shrub plots:

Plot: the identification number for the 6 grassland plots.

Q: the mean rate of discharge during the entire experiment, obtained
by dividing the total runoff by l800 sec. The units are cubic
centimeters per second.

Total N yield: the total yield of dissolved nitrogen discharged from
the plot during the duration of the experiment. The units are grams
per square meter per l800 sec. This yield has been adjusted, by
subtracting the content of total dissolved N applied in the simulated
rainfall.

Organic N yield: the yield of dissolved organic N, as above.

Inorganic N yield: the yield of NH4-N plus NO3-N discharged from the plot
during the duration of the experiment, as above.

Total P yield: the yield of total dissolved P discharged from the plot
during the duration of the experiment. The units are grams per
square meter, per l800 sec.

Organic P yield: the yield of dissolved organic P, as above.

Inorganic P yield: the yield of PO4-P discharged from the plot during
the duration of the experiment.

Fines: the percent of the plot surface covered by materials less than 2.0 mm
diameter

Gravel: the percent of the plot surface covered by materials more than 2.0 mm
diameter

Vegetation: the percent of the plot surface covered by vegetation.

Litter: the percent of the plot surface covered by plant litter.

Slope: it was not possible to measure slope in plots with a shrub in them, since
the mound dominated the slope in the plot.