Abstract: In this research, with timber harvest, carbon storage on the ground and spatial structure as the targets, selective cutting for business means, non-spatial structure as major constraints, the multiobjective management planning model were established. Taking the inventory data of Pangu Forest Farm in Great Xing’an Mountains region, Northeast China, 2008 and the standard investigation data set in 2011 as an example, under the constraint condition, we controlled 22 strains of cutting wood effectively and accurately.The timber harvest was 3.715 7 m³. Aboveground carbon storage of forest stand increased 0.089 tons. At the same time, the spatial structure comprehensive target value increased from 1.378 5 to 1.378 5. The scheme made the whole of the forest stand spatial structure greatly improved and it is an optimal solution. Therefore, this management plan can provide a reliable basis for long-term implementation of timber production, increase forest carbon reserves and maximumly keep the integrity of the forest spatial structure.

Key words: timber production, stand spatial structure, carbon storage, multi-objective planning, genetic algorithm