运用层次分析法从林分质量、立地条件、林分生态功能和森林抵抗力4个方面来构建残次林评价指标体系,并以福寿林场杉木残次林为研究对象,对其进行了残次水平等级评价。最后确定杉木残次林4个准则层评价指标权重分别为:林分质量(0.542 3)、林分立地条件(0.233 3)、林分生态功能(0.139 7)、林分抵抗力(0.084 7)。在福寿国营林场随机选取6块杉木残次林进行评价,其中重度残次林分5块,轻度残次林分1块,结果表明,建立的残次林评价指标体系能够比较客观的反应残次林的质量状况,为残次林的改造,林分质量和林分生态功能的提高提供科技支撑。
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.
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