长白山自然保护区阔叶红松林质量快速评价

Rapid assessment on quality of the mixed broadleaf and Korean pine forest in Changbai Mountain Nature Reserve

根据林地的自然性、林地质量、林分生长状况、群落完整性和稳定性五方面特征,选择17个指标构建评价模型,对长白山自然保护区阔叶红松林质量进行了评价。结果表明:长白山自然保护区阔叶红松林"一级"小班9个,占2.190%,"二级"小班个数和面积分别占97.080%和97.627%,"三级"小班3个,没有"四级"小班。自然保护区阔叶红松林总体质量得分0.858,等级为"二级",表明长白山自然保护区对阔叶红松林的总体质量较好。类准则层质量评价中,群落完整性质量等级为"三级",群落稳定性"三级"的小班个数和面积占20%以上,表明人类长期的林下干扰对阔叶红松林质量造成一定负面影响。

From the aspects of naturality, forest land quality, condition of forest growth, community integrity and community stability, we selected 17 indicators and set up an evaluation model to assess the quality of the mixed broad-leaf and Korea pine forest in Changbai Mountain Nature Reserve. The results showed that there were 9 forest subcompartments on level 1, accounting for 2.190% of the total subcompartment number. Both the number and the area of subcompartments on level 2 were dominant, accounting for 97.080% and 97.627% respectively. The number of level 3 subcompartment was only 3, and there was no subcompartment on level 4. The general quality score of the mixed broad-leaf and Korea pine forest in the nature reserve was 0.858, and the quality grade was level 2. These indicate the general quality of mixed broad-leaf and Korea pine forest in the nature reserve was good. However, the quality grade of community integrity was level 3, and both the number and the area of subcompartments with community stability were more than 20%. These suggest that the long-term human activities have brought negative effect on the quality of mixed broad-leaf and Korea pine forest.