Finite differential wave equation datum correction technique and its application in hilly area

In hilly areas, water pumping irrigation lift is high, and the irrigation water fee is high because of the high pumping cost, so the burdens on farmers are very heavy.

Phosphorus forms in surface runoff and its affecting factors in hilly upland;

On city vertical plan in mountainous topography;

Indigenous tree species,economic forest species and landscape plants should be taken into consideration when selecting species for vegetation restoration in hilly downland of Yangzhou.