Tupu methods of spatio-temporal analysis on land use land cover change - A case study in the Yellow River Delta

The paper puts forward Tupu methodoloy of landuse/land cover change and names the basic synthetic unit of spatial-temporal information as Tupu unit. Tupu unit is the synthetic unit for geospatial-temporal analysis, which is synthesized by "space attribute process" features and composed of relatively homogeneous geographic unit and temporal unit. The Tupu unit is the fundamentally functional unit in integrated spatial-temporal analysis of Geosciences. Same as the basic geographic unit, division of relatively homogeneous Tupu unit is very important. As Tupu unit is also in series of multi-categories at multi-scales, classification of Tupu unit on a certain scale is heavily depending on the goal of research.