public static void setBiome(
      final World w, final String id, final AthionPlot plot, final Biome b) {
    final int bottomX = AthionCore.bottomX(plot.id, w) - 1;
    final int topX = AthionCore.topX(plot.id, w) + 1;
    final int bottomZ = AthionCore.bottomZ(plot.id, w) - 1;
    final int topZ = AthionCore.topZ(plot.id, w) + 1;

    for (int x = bottomX; x <= topX; x++) {
      for (int z = bottomZ; z <= topZ; z++) {
        w.getBlockAt(x, 0, z).setBiome(b);
      }
    }

    plot.biome = b;

    refreshPlotChunks(w, plot);

    AthionSQL.updatePlot(getIdX(id), getIdZ(id), plot.world, "biome", b.name());
  }