row_num,project,PLOT_ID,plot_code,major_geo,country,pol1,pol2,locality_description,lat_decimal,long_decimal,elev_m,elev_max_m,elev_min_m,temp_c,precip_mm,slope_aspect,slope_gradient,clay_percent,silt_percent,sand_percent,organic_percent,pH,soil_N,soil_P,soil_C,soil_K,soil_Mg,soil_Ca,soil_Na,soil_acidity,soil_base,soil_cation_cap,soil_conductivity,soil_texture,holdridge_life_zone,life_zone_code,observation_type,plot_methodology,plot_area_ha,recensused,date_start,date_finish