Abstract: Taking the deteriorated Chinese fir forest of Fushou Forest Farm as the research object and using the analytic hierarchy process to establish the evaluation index system of deteriorated forest from these aspects of stand quality,site conditions,stand ecological function and forest resistibility the deteriorated forest was evaluated.The results showed that the weight of evaluation index of three criterion layers in Chinese fir deteriorated forest was respectively stand quality(0.5423),stand site conditions(0.2333),stand ecological function(0.1397)and stand resistibility(0.0847).In Fushou state-owned forest farm,6 pieces of cunninghamia lanceolata relict forest were for randomly selected for evaluation,including severe relict forest points 5 blocks,mild relict forest points 1 piece.The results show that the established relict forest evaluation index system could reflect objectively relict forest quality conditions and provide technical support for relict forest transformation,the improvement of quality of forest and forest ecological functions.

Key words: relict forest, forest quality, site conditions, forest ecological function, the evaluation index system