buech                  package:ade4                  R Documentation

_B_u_e_c_h _b_a_s_i_n

_D_e_s_c_r_i_p_t_i_o_n:

     This data set contains informations about Buech basin
     characteristics.

_U_s_a_g_e:

     data(buech)

_F_o_r_m_a_t:

     'buech' is a list with the following components : 

     _t_a_b_1 : a data frame with 10 environmental variables collected on
          31 sites in Juin (1984)

     _t_a_b_2 : a data frame with 10 environmental variables collected on
          31 sites in September (1984)

     _x_y : a data frame with the coordinates of the sites

     _n_e_i_g : an object of class 'neig'

     _c_o_n_t_o_u_r : a data frame for background map .in -5 

_D_e_t_a_i_l_s:

     Variables of 'buech$tab1' and 'buech$tab2' are the following ones
     :
       pH ; Conductivity (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-))

_S_o_u_r_c_e:

     Vespini, F. (1985) _Contribution  l'tude hydrobiologique du
     Buech, rivire non amnage de Haute-Provence_. Thse de troisime
     cycle, Universit de Provence.

     Vespini, F., Lgier, P. and Champeau, A. (1987) Ecologie d'une
     rivire non amnage des Alpes du Sud : Le Buch (France) I.
     Evolution longitudinale des descripteurs physiques et chimiques.
     _Annales de Limnologie_, *23*, 151-164.

_E_x_a_m_p_l_e_s:

     data(buech)
     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))

