buech: Buech basin

In ade4: Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences

Buech basin

Description

This data set contains informations about Buech basin characteristics.

Usage

data(buech)

Format

buech is a list with the following components:

tab1

a data frame with 10 environmental variables collected on 31 sites in Juin (1984)

tab2

a data frame with 10 environmental variables collected on 31 sites in September (1984)

xy

a data frame with the coordinates of the sites

neig

an object of class neig

contour

a data frame for background map

nb

the neighbouring graph between sites, object of the class nb

Spatial

an object of the class SpatialPolygons of sp, containing the map

Details

Variables of buech$tab1 and buech$tab2 are the following ones:
pH ; Conductivity (μ S/cm) ; Carbonate (water hardness (mg/l CaCO3)) ; hardness (total water hardness (mg/l CaCO3)) ; Bicarbonate (alcalinity (mg/l HCO3-)) ; Chloride (alcalinity (mg/l Cl-)) ; Suspens (particles in suspension (mg/l)) ; Organic (organic particles (mg/l)) ; Nitrate (nitrate rate (mg/l NO3-)) ; Ammonia (amoniac rate (mg/l NH4-))

Source

Vespini, F. (1985) Contribution à l'étude hydrobiologique du Buech, rivière non aménagée de Haute-Provence. Thèse de troisième cycle, Université de Provence.

Vespini, F., Légier, P. and Champeau, A. (1987) Ecologie d'une rivière non aménagée des Alpes du Sud : Le Buëch (France) I. Evolution longitudinale des descripteurs physiques et chimiques. Annales de Limnologie, 23, 151–164.

Examples

data(buech)
if(adegraphicsLoaded()) {
  if(requireNamespace("sp", quietly = TRUE)) {
    g1 <- s.label(buech$xy, Sp = buech$Spatial, nb = buech$nb, 
      pSp.col = "transparent", plot = FALSE)
    g2 <- s.value(buech$xy, buech$tab2$Suspens - buech$tab1$Suspens, 
      Sp = buech$Spatial, nb = buech$nb, pSp.col = "transparent", plot = FALSE)
    G <- cbindADEg(g1, g2, plot = TRUE)
  }
} else {
  par(mfrow = c(1,2))
  s.label(buech$xy, contour = buech$contour, neig = buech$neig)
  s.value(buech$xy, buech$tab2$Suspens - buech$tab1$Suspens,
    contour = buech$contour, neig = buech$neig, csi = 3)
  par(mfrow = c(1,1))
}

ade4 documentation built on Feb. 16, 2023, 7:58 p.m.