摘要
为深入研究亚热带山地森林生态系统结构、功能及生态过程,为亚热带山地森林资源的保护和管理提供科学依据,对玉舍国家森林公园3种林分树附生苔藓种类及相关因子进行调查和测定,并应用群落多样性特征指数和排序的方法研究林分结构对树附生苔藓的影响。结果表明:树附生苔藓种类有18种(含1变种);冗余分析(RDA)揭示树木密度对附生苔藓群落的影响超过其他因子,解释了总变量的71.7%;林分类型对附生苔藓的分布影响最大,在十齿花为优势群落的混合林中不同林分树木水平上树附生苔藓的盖度和多样性最高,而在针叶混合林中最低。因此,进行森林管理时,应注意对不同林分的选择管理,以维持林分结构复杂性和树种多样性,进而更好地保护树附生苔藓的多样性。
Species of epiphytic bryophyte of three stands in Yushe National Forest Park were surveyed and the effect of stand structure on epiphytic bryophyte was studied by community diversity index and ordination method to further study the ecological system structure,function and ecological process of subtropical mountain forest and to provide the scientific basis for protection and management of forest resources in subtropical mountain area.The results showed that there are 18 epiphytic bryophytes （including 1 mutation）.RDA reveals that the effect of tree density on epiphytic bryophyte community is higher than other factors,which can explain 71.7% of total variance.Stand type has the greatest impact on distribution of epiphytic bryophyte.The cover degree and diversity of epiphytic bryophyte is the highest and the lowest in conifer mixing forest at the tree level of different forest stand. Therefore, the management measures to keep complexity of stand structure and tree diversity are beneficial to protect diversity of epiphytic bryophyte according to different stands.
出处
《贵州农业科学》
CAS
2015年第3期138-143,共6页
Guizhou Agricultural Sciences
基金
贵州省科技厅科学技术基金项目"玉舍国家森林公园树附生苔藓群落及其对环境的响应"[黔科合J字(2011)2185]
贵州省教育厅自然科学基金项目"六盘水玉舍国家森林公园苔藓植物多样性及其保护研究"(黔教科2010100)
六盘水市科技人才培养及创新团队建设计划项目"植物资源与环境生态研究创新团队"(52020-2012-04-01-01)
2013年六盘水师范学院植物学重点学科资助项目[师院通字(2013)45]
贵州省重点支持学科建设项目[黔财教(2014)142]
关键词
附生苔藓
物种多样性
林分结构
森林管理
森林生态系统
贵州
epiphytic bryophyte
species diversity
stand structure
forest management
forest eco-systems
Guizhou
