北京林业大学学报2026，Vol.48Issue(2)：103-113,11.DOI:10.12171/j.1000-1522.20250521
不同经营措施对蒙古栎次生林韧性的影响
Effects of different management measures on resilience of Quercus mongolica secondary forests
摘要
Abstract
[Objective]To quantify the effects of different management measures on the resilience of Mongolian oak(Quercus mongolica)secondary forests in northeastern China,and to provide a scientific basis for adaptive forest management and ecological restoration in the region.[Method]Twelve permanent 1-ha plots were established in the Changbai Mountain area and arranged in a randomized block design with four treatments:traditional management(TM),crop-tree release with a target tree density of 80 trees per hectare(CTR1),crop-tree release with a target tree density of 120 trees per hectare(CTR2),and control(CK).Forest inventories were conducted in 2013,2018,and 2023.Based on the theoretical framework of forest resilience,eight indicators were selected from three dimensions:Resistance(dominant tree diameter,weighted height-diameter ratio,uniform angle index),Recovery(size diversity,tree species diversity,canopy cover),and Adaptability(species composition,and competitiveness of climax species)to construct a comprehensive evaluation index system.A combined subjective-objective weighting approach and the unit-circle method were applied to calculate the resilience composite index(RCI)and to assess the effects of different management measures on forest resilience after 5 and 10 years.[Result](1)The proposed indicator system was ecologically and statistically robust,with low inter-indicator correlations and strong information complementarity,and the combined weighting method effectively distinguished resilience responses among management treatments.(2)Both crop-tree release and traditional management significantly increased size diversity,weighted height-diameter ratio,and canopy cover(p<0.05),while crop-tree release further promoted the diameter growth of dominant trees.(3)Five years after cutting,CTR2 showed the largest and significant increase in RCI;ten years after cutting,both crop-tree treatments exhibited significant improvement,whereas TM and CK showed no significant enhancement of resilience.(4)The improvement of forest resilience in the short and medium term mainly comes from the enhancement of resistance and recovery.[Conclusion]Low-intensity crop-tree release,particularly CTR2 with a crop-tree density of 120 trees per hectare,demonstrated optimal short-and medium-term effects.By optimizing size structure,improving the growth conditions of dominant trees,and enhancing functional redundancy,this approach simultaneously strengthens resistance and recovery of Quercus mongolica secondary forests and represents an effective approach to improve resilience in temperate secondary forests.Enhancement of adaptability,however,depends on longer-term structural adjustment and successional processes.关键词
森林韧性综合指数/抵抗力/恢复力/目标树经营/适应性管理Key words
forest resilience composite index/resistance/recovery/crop-tree release/adaptive management分类
农业科技引用本文复制引用
周超凡,雷相东,胡雪凡,赵阳,刘迪,李圣涛,丁易,卢军,张会儒..不同经营措施对蒙古栎次生林韧性的影响[J].北京林业大学学报,2026,48(2):103-113,11.基金项目
国家重点研发计划(2023YFE0105100-4),国家自然科学基金项目(32501645). （2023YFE0105100-4）
