Ceng wei jun chen yun (1 risultati)

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-07 Pages:212 Publisher:Science and Technology Press of China After point source pollution in the Erhai Lake Basin was effectively curbed. non-point source pollution from the upstream planting industry became the preferred pollution source. Crop types. fertilization treatment. soil and topography are the decisive factors for the discharge of non-point source pollution from the planting industry. Planting ecological zoning plays a key role in the control.…