other cultural or aesthetic values." There are four general types of cultural landscapes. Once the criteria for a landscape inventory are developed and tested, the methodology should be explained. Such a system should have the capability to include plans and photographs that would record a site's living collection of plant materials. A landscape with a high level of integrity and authenticity may suggest preservation as the primary treatment. Topography, circulation and the visual and spatial relationships that are character defining. In all cases, treatment should be substantiated by the historic research findings and existing conditions documentation. For plants species with many cultivars, such as apples, roses, and grapes, specimens may be sent to specialists for identification.
Based on these findings, individual features may be attributed to the particular period when they were introduced, and the various periods when they were present. By classifying these features and relationships, the landscape can be understood as an artifact, possessing evidence of evolving natural systems and human interventions over time. Individual residential properties often do not require the same level of public outreach, yet a systematic planning process will assist in making educated treatment, management and maintenance decisions. The next step may be to view the landscape from a high point such as a knoll or an upper floor window. Historical landscape architects work with landscape managers and historians to gather oral and documented history on the plant's origin and potential significance. To help structure a comprehensive maintenance operation that is responsive to staff, budget, and maintenance priorities, the National Park Service has developed two computer-driven programs for its own landscape resources.
The Cultural Differences,
The seven qualities of integrity are location, setting, feeling, association, design, workmanship and materials. For activities at the national level, for example when implementing a local community youth programme, youth may be understood in a more flexible manner. For vegetation, the preservation maintenance program would also include thresholds for growth or change in character, appropriate pruning methods, propagation and replacement procedures. Their ongoing preservation can yield an improved quality of life for all, and, above all, a sense of place or identity for future generations. A range of issues may need to be addressed when considering how a particular cultural landscape should be treated. If a computer is not available, a manual or notebook can be developed to organize and store important information. Features that are based on secondary or less accurate sources should be graphically differentiated. Preservation maintenance is the practice of monitoring and controlling change in the landscape to ensure that its historic integrity is not altered and features are not lost.