dune
(Package: vegan) :
Vegetation and Environment in Dutch Dune Meadows.
The dune meadow vegetation data, dune, has cover class values of 30 species on 20 sites. The corresponding environmental data frame dune.env has following entries:
varespec
(Package: vegan) :
Vegetation and environment in lichen pastures
The varespec data frame has 24 rows and 44 columns. Columns are estimated cover values of 44 species. The variable names are formed from the scientific names, and are self explanatory for anybody familiar with the vegetation type. The varechem data frame has 24 rows and 14 columns, giving the soil characteristics of the very same sites as in the varespec data frame. The chemical measurements have obvious names. Baresoil gives the estimated cover of bare soil, Humdepth the thickness of the humus layer.
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