Abstract: Land use rights management where land use rights are represented as bounded space, and portions of rights are represented as portions of whole rights. The portions are specifically designated subspaces within the bounded space. Rights or ownership interests can be determined by a set or array of interests as indicated by separate computer objects. Conveyances that indicate a split of rights causes the generation of multiple separate interests. Conveyances that indicate a merger of rights can cause the generation of a merged interest where rights from multiple sources can be combined in one interest as indicated by a single computer object. The merged interest can reduce the number of individual rights in the set to enable the computer to perform more efficient computation of ownership interests.