|M.Sc Student||Azati Ester|
|Subject||The Use of An Expert System for Planning Multi-Purpose|
|Department||Department of Architecture and Town Planning||Supervisors||Dr. Pua Kutiel|
|Professor Shaul Amir|
This research deals with the use of an expert system called FOREST for planning a multi—purpose forest in the Mediterranean mountainous areas of Israel. It is based on an Expert System generator — RABBI. The emphasis in the system is on ecological principles and deals with the stages of planning the plantings The system adapts the various uses of the forest to the conditions of site and the plant species to the conditions of the growth chamber and objectives of the forest.
Presentation of the knowledge in the system was made by means of a rule — based system which expressed laws and rules of decisions determining the planning. The inference process is carried out in a number of stages, and the important factors were determined as planning criteria. In an examination of the ecological adaptability four main factors were selected the level of CaCO3 in the soil; depth of the soil; water economy and nature of the rock base.
Recommendations of the system are lists of plants graded by the order of preference according to the extent of their adaptability to the ecological conditions and the intended use.
Appraisal of the implementation of the system was carried out by a comparison between the recommendations of the system and existing forestation programs. It turns out that there is a similarity in the composition of the species, but differences were found in the relative weight that each species received, as expressed by the quantities recommended for planting. The system attributes primary importance to the adaptability of the plant to various conditions of the environment.
Choosing in advance the objectives of the planning and emphasis of the adaptation of plants to the growth chamber could contribute in two directions: by guaranteeing a higher percent of success in plantings and savings in the need to carry out replanting. The FOREST system deals both with the stages of analysis and synthesis of the knowledge of planning, and can also serve as a control system which conducts evaluations of forestation programs.