新乡市区园林植物区系特征分析  

Analysis on Floral Characteristics of the Landscape Plants in Xinxiang

作　　者：周会萍[1] 刘兴洋[1] 张家洋[1] 

机构地区：[1]新乡学院生命科学与技术系,河南新乡453003

出　　处：《西北林学院学报》2013年第6期188-193,198,共7页Journal of Northwest Forestry University

基　　金：国家科技支撑计划项目(2009BADB2B0601)

摘　　要：在野外调查及查阅资料的基础上,对新乡市主城区园林植物资源进行区系分析,结果表明,研究区共有园林植物74科161属311种(含变种),木本植物为主体。5种以上的科有17个,含81属205种;区域少种科和区域单种科共57科,含80属106种。科、属、种的配比特征为:较多的科、属含较少的种,较少的科、属含较多的种。热带性质的科29科,温带性质的科有23科,中国特有分布2科,分别占本植物区系非世界分布总科数的53.70%、42.59%和3.70%,温带性质科与热带性质科在数量上无明显优势,但含物种较多的优势科大都属于温带分布和世界分布型。热带分布属42属,以泛热带分布属最多;温带分布属100属,北温带分布属居首位;中国特有分布7属。新乡市园林植物的规划方向应以观赏性较好的乡土树种为主,对外来树种应加强入侵生态风险评估。Based on the field survey and literature review, the floral analysis on landscape plant resources in Xinxiang was conducted. The results indicated that there were 311 species（including varieties）belonging to 161 genera in 74 families in Xinxiang, and most of them were woody plant species. There were 17 large and middle families which included 81 genera and 205 species. The 57 single-species families and regional few-species families consisted of 106 species and 80 genera. The analysis on proportion characteristics of families, genera and species showed that more families and genera included less species, whereas less family included more species. Twenty nine tropical families accounted for 50.37% of the total non-cosmopolitan families, 23 temperate families for 42.59%, and 2 families uniquely distributed in China, accounting for 3.70%. The analysis on the number of species contained in the families showed that the temperate and cosmopolitan families in Xinxiang contained more species although there were a number of tropical families. At the level of genus, there were 42 tropical genera which were mainly pan-tropical distributed genera, 100 temperate genera in which the North Temperate genera were the most, and there were 7 endemic genera in China. So the design of the landscape plant in Xinxiang should tend to ornamental native tree species, for the exotic tree species we should strengthen invasive ecology risk assessment.

关 键 词：园林植物 区系分析 新乡市 主城区 

分 类 号：S718.3[农业科学—林学]