从海域使用权制度透视物权法理论的新发展

海域使用权的客体是能够特定化的不动产——海域，其性质为集合物。海域使用权在我国物权法用益物权体系中拥有了一席之地，标志着传统的物权法理论已经出现了一些新的变化和发展：第一，不动产的范围扩大，由传统的土地逐渐发展到海域、空间等新类型的物。第二，集合物不仅可以作为担保物权的客体，也应当可以作为用益物权的客体。第三，用益物权是一个开放的体系，其随着社会的发展，不断进行扬弃。

On the New Developments of the Theory of the Law of Real Property Right from the Perspective of the Rights of Sea Use System

The object of the rights of sea use is the real estate that can be specified- sea area with the nature of an assemblage. The rights of sea use has secured its position in the system of usufractuary right in the law of real right, indicating certain new changes and developments in the theory of real right property law. Firstly, the scope of the real estate has expanded from traditional land to sea area , space and other new types of matter. Secondly, an assemblage can be not only the object of security right, but also the object of the usufractuary right. Thirdly, the system of the usufractuary right is open, developing the useful and discarding the useless with the development of the society.