Study on the Response of Seedlings of Potential Restoring Species(Schima superba and Mallotus paniculatus) for South Subtropical Regions to Drought Stress
本研究针对亚热带常绿阔叶林天然分布的树种木荷(SchimasuperbaGardn.etChamp.)和南亚热带季风常绿阔叶林天然分布的树种白楸(Mallotuspaniculatus(Lam.)Muell.-Arg.)，从种子萌发、形态、生理、元素分配和群体等几个层次阐述了幼苗更新对水分胁迫响应的机制，从生理生态响应途径来理解亚热带地带性植被更新的机制，为亚热带区域的森林更新和生态恢复提供理论依据。本论文采用聚乙二醇(PEG)模拟水分胁迫研究木荷和白楸种子萌发对水分胁迫的响应；采用盆栽控水法，研究水分胁迫程度轻重和水分胁迫时间长短对木荷和白楸不同苗龄幼苗的影响；同时野外采样，研究海拔和光照对...To explore the response of restoring tree seedling regeneration to water stress from budding, morphological, physiological, element distributing and population structure, and to improve understanding of regeneration in subtropical forests and revegetation of degraded forests in subtropical area and south subtropical area, two pioneer tree, Schima superba Gardn. et Champ. and Mallotus paniculatus (...学位：理学硕士院系专业：生命科学学院生物学系_植物学学号：S20032600
