摘要
为促进湘江流域河岸带生态恢复与重建及生物多样性保护,运用样地调查、植物区系和统计分析的方法,对该区域植物物种的基本构成、地理成分进行分析。结果表明,研究区共有维管植物30科58属62种,其中有蕨类植物1种,种子植物61种,分属29科57属,占湖南种子植物比例较低,说明该区域植物种类相对较少。单属科和单型属所占比例大、优势科明显,反映出水陆交错带的复杂环境对植物的干扰。科可分为4个分布型和2个变型,属可分为11个分布型和4个变型,说明该区域植物区系地理联系广泛。科和属的分布型说明该河岸带种子植物区系泛热带亲缘性,反映出湘江地处亚热带季风气候的特征,也说明其在本区域植物区系中占有一定地位。
In order to promote the ecological restoration and reconstruction of the Riparian zone of the Xiangjiang River basin and the protection of biodiversity,the basic composition and geographical composition of plant species in this area were analyzed by using the methods of sample survey,flora and statistical analysis.The result showed that there were 62 species of vascular plants belonging to 58 genera in 30 families in the study area,including 1 species of fern and 61 species of seed plants,which belonged to 57 genera in 29 families,accounting for a low proportion of seed plants in Hunan,indicating that there were relatively few plant species in this area.Monogenera and monotypic genera account for a large proportion,and dominant families were obvious,reflecting the interference of complex environment on plants in the ecotone between land and water.Families can be divided into 4 distribution types and 2 forms,and genera can be divided into 11 distribution types and 4 forms,which showed that the flora of this area was geographically related.The distribution pattern of families and genera showed that the flora of seed plants in the riparian zone was pan-tropical,reflecting the char acteristics of Xiangjiang River in subtropical monsoon climate,and also showed that it occupies a certain position in the flora of this region.
作者
宁雯宇
NING Wenyu(Shaoyang Grassland Resources Conservation Center,Shaoyang 422000,China)
出处
《黑龙江农业科学》
2023年第7期81-86,共6页
Heilongjiang Agricultural Sciences
基金
宿迁学院人才引进科研启动基金(106-CK0042/012)。
关键词
植物区系
生态恢复与重建
湘江长沙城区段
河岸带
flora
ecological restoration and reconstruction
Xiangjiang River of Changsha Urban Area Section
riparian zone
