西南林业大学学报2024，Vol.44Issue(11)：98-106,9.DOI:10.11929/j.swfu.202310038
大兴安岭次生林森林生态系统健康评价研究
Study on Forest Ecosystem Health Evaluation of Secondary Forest in the Greater Hinggan Mountains
摘要
Abstract
The community structure,soil status,stand spatial structure,resistance index and water conserva-tion status of the Genhe forest area in the Greater Hinggan Mountains and the secondary forest area in the Mohe forest area of Heilongjiang Province were investigated and analyzed in 30 plots.The evaluation index system was established by selecting 16 evaluation indexes,such as mean diameter at breast height,storage volume per unit area,total nitrogen,angular scale,fire hazard grade,pest grade and litter water capacity.The forest ecosystem health status of secondary forests in the Greater Hinggan Mountains was evaluated by using the comprehensive in-dex of forest health evaluation,and the weight of each index was determined by using the analytic hierarchy pro-cess.The forest health index of the study area was divided into 5 levels,combined with the survey data of the ground plots.The results showed that 13.33％of the plots in the study area were in the sub-health state,and the 26 plots of healthy grade accounted for 86.67％of the total,and there were no healthy,medium healthy and high-quality forests.From the perspective of forest type,the forest health status of broad-leaved secondary forest is bet-ter and should be maintained to promote its transformation to"high quality"state.The health status of mixed forest is low,and proper afforestation,thinning,pruning and fertilization need to strengthen forest fire prevention to ensure the safety of forest resources.In different age groups,the young forest has the highest health status,and the mature forest has the highest sub-health status.Among them,91.18％were healthy and 8.82％were sub-healthy.The proportion of healthy and sub-healthy forests was 87.30％and 12.70％respectively.Nearly mature forest health accounted for 74.96％,sub-health accounted for 25.04％,33.33％of mature forests were healthy,66.67％were sub-healthy,66.67％were over-mature forests were healthy.The portion of sub-healthy forests ac-counts for 33.33％.Put simply,the secondary forests in the Genhe forest area of Greater Hinggan Mountains and the Mohe forest area of Heilongjiang boast a favorable ecological environment,with the majority in a healthy state.However,certain secondary forests require specific management methods to enhance their ecosystem health.关键词
森林生态系统/健康评价/层次分析法/大兴安岭Key words
forest ecosystem/health assessment/analytic hierarchy process/Greater Hinggan Mountains分类
农业科技引用本文复制引用
梁晶文,翟凯涛,李静,王子瑞,刘磊,高明龙,滑永春,王冰,萨如拉..大兴安岭次生林森林生态系统健康评价研究[J].西南林业大学学报,2024,44(11):98-106,9.基金项目
内蒙古自治区科技计划项目(2020GG0067)资助 （2020GG0067）
内蒙古自治区自然科学基金项目(2023MS03051)资助. （2023MS03051）
