毕节市七星关区城郊四种林地苔藓植物区系研究

Study on Bryoflora of Four Different Forest Lands of Qixingguan Suburb in Bijie

通过实地调查和样方统计,研究毕节市七星关城郊蕨灌木林地、响叶杨灌木林地、马尾松林灌木林地、马尾松林地四种林地苔藓植物区系,结果显示:响叶杨灌木林地苔藓植物物种最丰富,蕨灌木林地苔藓植物物种丰富性最低;马尾松灌木林地与响叶杨灌木林地苔藓植物物种相似性最大,马尾松林地与响叶杨灌木林地苔藓植物物种相似性最小;苔藓植物区系以北温带类型占主要成分;蕨灌木林地苔藓植物区系热带亚洲成分比例与北温带成分比例相当。

This paper focus on the research of four different forest lands of Qixingguan suburb in Bijie in- cluding pteridophyte - shrub forest,Populus adenopoda-shrub forest, masson pine- shrub forest, masson pine forest which based on field investigation. The research shows that Populus adenopoda-shrub forest has the most abundant species and the pteridophyte-shrub forest has the lowest species than the others. The result al- so shows that it has the most similarity between mass on pine- shrub forest and Populus adenopoda-shrub for- est, however it has the minimal similarity between Populus adenopoda-shrub forest and masson pine- shrub forest.The north temperate zone occupies the main ingredient of bryoflora in investigation site, north temper- ate and tropical Asia components are equally abundant at the pteridophyte - shrub forest.