aqp (version 0.99-9.1)

sp5: Sample Soil Database #5

Description

296 Soil Profiles from the La Rochelle region of France (F. Carre and Girard, 2002)

Usage

data(sp5)

format

Formal class 'SoilProfileCollection' [package "aqp"] with 6 slots ..@ idcol : chr "soil" ..@ depthcols: chr [1:2] "top" "bottom" ..@ metadata :'data.frame': 1 obs. of 1 variable: .. ..$ depth_units: chr "cm" ..@ horizons :'data.frame': 1539 obs. of 17 variables: .. ..$ soil : soil ID .. ..$ sand : sand .. ..$ silt : silt .. ..$ clay : clay .. ..$ R25 : RGB r-coordinate .. ..$ G25 : RGB g-coordinate .. ..$ B25 : RGB b-coordinate .. ..$ pH : pH .. ..$ EC : EC .. ..$ CaCO3 : CaC03 content .. ..$ C : C content .. ..$ Ca : Ca .. ..$ Mg : Mg .. ..$ Na : Na .. ..$ top : horizon top boundary (cm) .. ..$ bottom : horizon bottom boundary (cm) .. ..$ soil_color: soil color in r-friendly format ..@ site :'data.frame': 0 obs. of 0 variables ..@ sp :Formal class 'SpatialPoints' [package "sp"] with 3 slots .. .. ..@ coords : num [1, 1] 0 .. .. ..@ bbox : logi [1, 1] NA .. .. ..@ proj4string:Formal class 'CRS' [package "sp"] with 1 slots .. .. .. .. ..@ projargs: chr NA

source

296 Soil Profiles from the La Rochelle region of France (F. Carre and Girard, 2002).

Details

These data are c/o F. Carre ([e-mail]).

References

F. Carre, M.C. Girard. 2002. Quantitative mapping of soil types based on regression kriging of taxonomic distances with landform and land cover attributes. Geoderma. 110: 241--263.

Examples

data(sp5)

# plot a random sampling of profiles
plot(sp5[sample(1:length(sp5), 25), ], divide.hz=FALSE)

# plot the first 100 profiles, as 4 rows of 25- hard-coding the max depth
layout(matrix(c(1,2,3,4), ncol=1), height=c(0.25,0.25,0.25,0.25))
plot(sp5[1:25, ], max.depth=300)
plot(sp5[26:50, ], max.depth=300)
plot(sp5[51:75, ], max.depth=300)
plot(sp5[76:100, ], max.depth=300)