DEVELOPTMENT OF SPATIO-TEMPORAL FOREST HARVEST PLANNING SYSTEM FOR OPTIMIZING CARBON SEQUESTRATION

摘要

A computer-based forest planning system was developed for generating and visualizing spatial forest harvesting plans for given management objectives. The system adapted the two-staged block generation approach using maximal feasible blocks to formulate spatial, temporal and related restrictions. The mixed integer programming based solver was employed to optimize the problem which resides at the backend along with a relational database which stores different forest, operation and management related data. The system runs with minimal information required from user, such as management objective selected, time frame of the planning horizon and periods, and other management restrictions as binary inputs. Modeling processes and complexities were handled by the system using tested algorithms which are often the major challenge in alternative planning process. This integrated system simplifies the planning processes and ensures that the generated spatial plan meets the long term objectives of forest management. A case study illustrated the implementation of the system on a hardwood forest managed to maximize carbon sequestration highlighting components of the approaches, solution experience, and possible extensions.