摘要
Wetland parks play various ecological roles,including maintaining regional ecological balance,and connoting and compensating water sources.Taking Harbin Qunli National Urban Wetland Park as the research object,the diversity of plant resources in wetland parks is investigated and analyzed with the goal of providing a scientific basis for ecological restoration and the conservation and utilization of urban wetlands.Field survey,sampling and data collection methods were used to study the wetland plant resources and their life types(e.g.,vines or shrubs),ecological types and distribution types.The study found 60 families,129 genera and 160 species of wetland plants in Qunli National Urban Wetland Park,including 56 families,123 genera and 151 species of angiosperms,which include 48 families,101 genera and 127 species of dicotyledons and 8 families,22 genera and 24 species of monocotyledons;2 families,2 genera and 3 species of ferns;and 2 families,4 genera and 6 species of gymnosperms.The family composition is dominated by those families that included 10 or more species,and the dominant families are Compositae and Rosaceae.The genus composition is dominated by genera with four or more species present,and the dominant genera are Acer,Malus and Artemisia.Among the six life types,herbaceous plants are dominant,with a proportion of 62.50% of the species.The ecological types are divided into three categories:wet,mesophytic and aquatic plants,with wet plants accounting for the largest proportion,i.e.,56.25% of the total number of plant species.There are five distribution types of plant families and 10 types of the genera,with both families and genera dominated by the Northern Temperate types,so the flora has obvious temperate characteristics.
湿地公园具有维持区域生态平衡、涵养与补偿水源等生态作用,以哈尔滨群力国家城市湿地公园为研究对象,对湿地公园内植物资源多样性进行调查与分析,旨在为城市湿地生态恢复与保护利用提供科学依据。采用实地调查法、样方法、资料收集法,对湿地植物资源及其生活型、生态类型、分布类型等进行研究。研究表明,群力国家城市湿地公园内共有湿地植物60科129属160种,其中被子植物56科123属151种,包含双子叶植物48科101属127种,单子叶植物8科22属24种;蕨类植物2科2属3种;裸子植物2科4属6种。科组成以分布10种及以上种的科占优势,优势科有菊科和蔷薇科;属组成以分布4种及以上种的属占优势,优势属有槭属、苹果属和蒿属。生活型分为6种,草本植物占优势,比例为62.50%。生态类型分湿生、中生和水生植物3类,湿生植物占比重最大,占湿地植物总种数的56.25%。植物科、属的分布类型分别为5个和10个,两者均以北温带分布为主,植物区系有明显的温带性特点。
基金
The Key Scientific Research Projects of Jiamusi City(200119)。
