美国著名学者Carl Steinitz评论博士论著

On Teaching Ecologic Principles to Designers Carl Steinitz Graduate School of Design Harvard University In his dissertation entitled "Security patterns in Landscape Planning: With A Case in South China," Kongijian Yu (DDes, 1995) investigated whether there were certain landscape patterns that can most or more effectively safeguard landscape-related processes while maximally providing possibilities for changes. The thesis proposes the concept of security patterns (SPs)--portions and positions that have or potentially have strategically critical influences on landscape processes. Ecological, visual, and agricultural SPs are explored. For example, the dynamics of the ecological processes are represented by accessibility surfaces based on calculations of minimum cumulative resistance. Four structural components can be identified on the accessibility surfaces: buffer zones, inter-source linkages, radiating routes and strategic points. These four components, specified by quantitative and qualitative parameters, together with the identified sources, compose the ecological SPs at various security levels. SPs such as these can be used to develop various change alternatives within the same security level. They can constrain change models and they can be a basis for spatial bartering. (Yu, 1995)