Abstract
This paper describes a methodology for finding and defining the planning units applicable to landscape planning. Based on the topographical analysis focusing on basin, this methodology clarifies the sequence of scenery and the structural principle of landscape planning unit. This principle is derived from the analysis of ridge line network which works as unclosed border line of landscape units or the connector of sequential territories of landscape. Simplicity of its analytical procedure helps local people get agreement to the plan and promote collaboration to solve the problems on landscape in their community and with its adjacent communities.
