大兴安岭不同类型低质林群落稳定性的综合评价  

Comprehensive Evaluation of Forest Community Stability of Different Types of Low-Quality Forest Stands in the Greater Higgnan Mountains

作　　者：宋启亮[1] 董希斌[1] 

机构地区：[1]东北林业大学森林持续经营与环境微生物工程黑龙江省重点实验室,哈尔滨150040

出　　处：《林业科学》2014年第6期10-17,共8页Scientia Silvae Sinicae

基　　金："十二五"农村领域国家科技计划课题(2012BAD22B0202-3);林业公益性行业科研专项(201004043)

摘　　要：以大兴安岭林区分布的针阔混交林、山杨林、蒙古栎林、白桦林和阔叶混交林5种典型低质林森林群落类型为研究对象,选择反映森林群落基本特征的物种多样性、土壤物理性质、土壤化学性质、枯落物特性和土壤碳通量这5项指标,共30个评价因子,运用模糊数学中隶属函数的方法综合评价低质林森林群落稳定性。结果表明:针阔混交林物种多样性、枯落物特性、土壤碳通量指标最高,阔叶混交林土壤化学性质指标最高,蒙古栎林土壤物理性质指标最高,大兴安岭5种森林群落稳定性表现为针阔混交林>阔叶混交林>蒙古栎林>白桦林>山杨林。评价结果可以为当地低质林生态系统恢复提供理论依据。The low-quality forest community stability was comprehensively evaluated by calculating subordinate function values of a model which was established based on fuzzy synthetic evaluation by a total of 30 factors of 5 indices of species diversity,soil physical properties,soil chemical properties,litter characteristics and soil carbon flux in 5 typical low-quality forest stands that mixed conifer and broadleaved forest,Populus davidiana forest,Quercus mongolica forest,Betula platyphylla forest and broadleaved mixed forest in the Greater Higgnan Mountains. The results showed that： The indices of species diversity,litter characteristics and soil carbon flux of mixed conifer and broadleaved forest are highest,the index of soil chemical properties of broadleaved mixed forest is highest,the index of soil physical properties of Quercus mongolica forest is highest,forest community stability of 5 types of forest communities in the Great Higgnan Mountains,ranked in the decreasing order of community of mixed conifer and broadleaved forest 〉 broadleaved mixed forest 〉 Quercus mongolica forest〉Betula platyphylla forest 〉Populus davidiana forest. The evaluation results can provide theoretical basis for the ecosystem restoration of low-quality forest stands in the Greater Higgnan Mountains.

关 键 词：大兴安岭 低质林 森林群落 稳定性 

分 类 号：S758.8[农业科学—森林经理学]