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en:data:grasslands

Vegetation of acidophilous grasslands in Třebíč region

Source of data

Zelený & Li (2008), Zelený (unpubl.)

Description of dataset

Vegetation samples of acidophilous grasslands (16-25m2) recorded in 2004-2007.

Photo of patch with acidophilous grassland (Valdíkov, Třebíč district, Czech Republic). Photo credit: D. Zelený.

Locality

North of Třebíč city, Czech Republic. Grasslands typically occur on convex topography with shallow soils, and form “islands” (habitat patches) of acidophilous vegetation in otherwise intensively manages agricultural landscape.

The file with coordinates, which can be opened in Google Earth: grasslands.kml 1)

Environmental variables

Name of variable Description
plot Plot number (used to store the plot in Czech National Phytosociological Database)
area Area of the plot [m2]
altitude Altitude [m a.s.l.]
aspect Aspect [°]
slope Slope [°]
heatload Heat load calculated from slope and aspect following the equation 3 in Keon & McCune 2002. FIXME (calculated by old heatload function with bug, needs to recalculate)
coverE2 Cover of shrub layer [%]
coverE1 Cover of herb layer [%]
cover_moss Cover of moss layer [%]
cover_lich Cover of lichen layer [%]
cover_bare Cover of bare soil [%]
pH.H soil pH, measured in water solution
soildepth Soil depth, measured by iron rod [cm]
soildepth_sd Variability of soil depth (calculated from five measurement by iron rod in one plot) [cm]
classification Classification of plots into vegetation associations. FVd - Festuco-Veronicetum dillenii, JmFo - Jasiono montanae-Festucetum ovinae, PhFr - Potentillo heptaphyllae-Festucetum rupicolae, PpSp - Polytricho piliferi-Scleranthetum perennis, and VvAp - Viscario vulgaris-Avenuletum pratensis; unclass - not classified.
latitude Latitude [°]
longitude Longitude [°]

Data for download

File name File type Description
grasslands-spe-env.xls Excel file Contains species × sample matrix, environmental variables, explanation of species abbreviations and metadata
grasslands-spe.txt tab-delimited txt format Sample × species matrix (48 samples in rows, 171 species in columns)
grasslands-env.txt tab-delimited txt format Environmental variable matrix (samples in rows, variables in columns)

Script for direct import of data to R

grasslands.spe <- read.delim ('https://raw.githubusercontent.com/zdealveindy/anadat-r/master/data/grasslands-spe.txt', row.names = 1)
grasslands.env <- read.delim ('https://raw.githubusercontent.com/zdealveindy/anadat-r/master/data/grasslands-env.txt')
 

References

  • Zelený D. & Li Ch.-F. (2008): Vegetace suchých acidofilních trávníků v oblasti třebíčského žulosyenitového plutonu [Dry acidophilous grassland vegetation in the area of Třebíč's granosyenite pluton] - Acta Rerum Naturalium, 5: 177-194 pdf
1)
you need Google Earth installed on your computer to open this file
en/data/grasslands.txt · Last modified: 2019/04/16 08:16 by David Zelený