Herbs 160620.csv

Files “Herbs 160620.csv” and “Shrubs 160620.csv” contain
data on the herbaceous and woody, respectively, vascular plant community
composition in 2012 of plots in the portion of the Palmerton Zinc Superfund
Site (Palmerton, PA, USA) amended with different compost types and seed mixes
in 2003.  Detailed methods are described
in Dietterich and Casper (2016).  Column
headings are described below.

Date: date of sampling.

Plot: one-acre plot to which a single
combination of experimental treatments was applied.

Transect: transect, nested within plot, along
which sampling quadrats were established.

Quadrat: quadrat, nested within transect, in
which species identity and percent cover were assessed.  Quadrats were 1 m2 squares for
herbaceous species measurements, and 100 m2 circles for woody
species measurements.

Shape: shape of the plot.  R denotes 32 x 128 m rectangular plots, and S
denotes 64 x 64 m square plots. 

Herb.Shrub: Denotes whether a given quadrat was
used to assess herbaceous (“Herb”) or woody (“Shrub”) vegetation.

Seed: Seed mixture applied to the plot.  “C4,” “Annual,” and “Perennial” correspond to
“2003 Seed Mix” 1, 2, and 3, respectively, in Table 1 of Dietterich and Casper
(2016). 

Compost: Compost type applied to the plot.  “Lehigh” denotes Lehigh County compost,
“Duck” denotes duck manure, “Straw” denotes straw mulch, “Mushroom” denotes
mushroom compost, and “Sludge” denotes sewage sludge.

All other columns denote the percent cover of a given
species recorded in that quadrat. 
Species abbreviations are elaborated in Table S1 of Dietterich and
Casper (2016).