The protection of public property utilization should confirm to the set up of the realization of public property and the remedy system of public property.

The practice and research in archives reveal that in the informatization process,it is the urgent to conduct the deep research in the fair utilization of archive information resources.

This paper illustrates the issue of the fair utilization of library resources, and points out how to make everyone use the library to get more knowledge.

By generalizing a wide range of foreign up-to-date researches on trace observation, this paper discusses its definition and origination, survey purposes, survey contents, operation methods, application especially in research field of park use, an.