dune                  package:vegan                  R Documentation

_V_e_g_e_t_a_t_i_o_n _a_n_d _E_n_v_i_r_o_n_m_e_n_t _i_n _D_u_t_c_h _D_u_n_e _M_e_a_d_o_w_s.

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

     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:

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

       data(dune)
       data(dune.env)

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

     _A_1 a numeric vector of thickness of A1 horizon.

     _M_o_i_s_t_u_r_e an ordered factor with levels

     _M_o_i_s_t_u_r_e '1' < '2' < '4' < '5'

     _M_a_n_a_g_e_m_e_n_t a factor with levels

     _M_a_n_a_g_e_m_e_n_t 'BF': Biological Farming  

     _M_a_n_a_g_e_m_e_n_t 'HF': Hobby Farming 

     _M_a_n_a_g_e_m_e_n_t 'NM': Nature Conservation Management 

     _M_a_n_a_g_e_m_e_n_t 'SF': Standard Farming 

     _U_s_e an ordered factor of landuse with levels

     _U_s_e 'Hayfield' < 'Haypastu' < 'Pasture'

     _M_a_n_u_r_e an ordered factor with levels

     _M_a_n_u_r_e '0' < '1' < '2' < '3' < '4'

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

     Jongman, R.H.G, ter Braak, C.J.F & van Tongeren, O.F.R. (1987).
     _Data Analysis in Community and Landscape Ecology_. Pudog,
     Wageningen.

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

     data(dune)

