Workers were singing as they tilled the rice paddy fields.
There are about 40 million hectares of artificial wetlands, including about 2 million hectares of reservoirs and about 38 million hectares of rice paddy fields.
Workers were singing as they tilled the rice paddy fields.
There are about 40 million hectares of artificial wetlands, including about 2 million hectares of reservoirs and about 38 million hectares of rice paddy fields.