河北省临城县小天池林区被子植物区系研究

采用植物区系地理学的研究方法,对河北省临城县小天池林区被子植物区系的组成和地理成分进行了研究。结果表明,临城县小天池林区有被子植物88科,301属,555种(包括14变种);含10种以上的优势科有14科,305种;表征科有7科;中国特有属有5属6种。该植物区的被子植物主要以北温带成分为主(共计有98属,221种,分别占总属数和总种数的37.69%和46.9 2%),这表明小天池被子植物区系具有明显的温带性质。

A floristic study on angiosperm in Xiaotianchi forest region in Lincheng County

Plant region geography of angiosperm in Xiaotianchi Forstin Lincheng County is studied by exploring its bio-community,and some samples of angiosperm and relavant data are collected.There are 555 species(including 14 varietas) of angiosperm belonging to 301 genera and 88 families in the Xiaotianchi forest region in Lincheng County,Hebei Province.Among them,the number of dominant family consisting more than 10 species is 14,with a total of 305 species.The analysis of the compositions and the geographical element in the flora shows that north temperate element has made up the dominant type of the angiosperm and there are 221 species belonging to 98 genera,approximating to 37.69% of total genera in Xiaotianchi,and 46.92% of total species.Old world temperate and Pantropic element are the second-majority of the angiosperm.It shows that the flora of Xiaotianchi has obvious temperate characteristics too.