Autumn leaves scatter the wood decking as tourists enjoy the view of a wetland park in Shennongjia forest district in Hubei province, on Oct 13, 2011. [Photo/Xinhua]

The silhouette of autumn is seen at a wetland park in Shennongjia forest district in Hubei province on Oct 13, 2011. [Photo/Xinhua]

The beautiful colors of autumn are seen by tourists at a wetland park in Shennongjia forest district in Hubei province, on Oct 13, 2011. [Photo/Xinhua]

Tourists enjoy the view of autumn at a wetland park in Shennongjia forest district in Hubei province, on Oct 13, 2011. [Photo/Xinhua]