摘  要城市绿地，是构成城市自然环境的基本要素，对维持和改善城市生态环境起重要的作用。本文在徐州市区绿地中选取14个绿地，通过对该市绿地草本植物的种类组成、生活型、优势度等方面的调查与统计,用重要值和频度计量不同绿地优势度植物的差异。以了解该市城市绿地草本植物资源应用现状。研究结果显示，被调查的绿地草本群落共出现植物161种，隶属于56科125属；其中，人工栽植的9种、自然生长的152种。草本植物群落中木本植物有19种(隶属于16科18属)，草本植物142种(隶属于30科107属)。在徐州城市中心的绿地中，草本植物的应用种类相对集中。可以适当培育一些适应性良好的乡土草本植物，应用于徐州市绿地中。牛筋草、狗尾草、香附子、马唐、斑地锦等一些乡土草本植物，在市区内的分布较为均匀，对市区内环境适应较好，因此在绿地植物储备、选育过程中，可以适当增加这些对市区环境适应良好的乡土草本植物。白杨、女贞、苦楝、乌桕等一些城市本土的行道树树种的幼苗也在各个区域都有分布，说明这些树种在徐州市城市绿地中，具有较好的适应及演替的能力。因此，在此后的绿地养护过程中，应注重对其的保护与管理。69218

该论文有图8幅，表5个，参考文献11篇。

毕业论文关键词：徐州市  绿地  草本群落

Species composition characteristics of herbaceous plant community in urban green space in Xuzhou

Abstract Urban green space is the basic element of the urban natural environment, which plays an important role in maintaining and improving the urban ecological environment. This paper in Xuzhou urban green space selected 14 green, by on the city green herbaceous plant species composition, life form and advantage of investigation and statistics, differences by important value and frequency measurement of different green advantage of plants. In order to understand the application status of herbaceous plant resources in urban green space. The results showed that there were 161 species of herbaceous plants, belonging to 56 families and 125 genera. Among them, 9 kinds of artificial planting and 152 kinds of natural growth were found. There are 19 species of woody plants (belonging to 16 families and 18 genera) and 142 species of herbaceous plants (belonging to 30 families and 107 genera). In the green space of Xuzhou city center, the application of herbaceous plants is relatively concentrated. Can be properly cultivated some good adaptability of native herbs, applied to the green space in Xuzhou city. Eleusine indica, Setaria viridis, Cyperus rotundus, Digitaria Sanguinalis, Euphorbia maculata and other some native herbaceous plants, in the urban area of distribution is more uniform, better adjustment to the urban environment, so in the green plant reserves, selection process can appropriately increase the on the urban environment to good local herbs. Seedlings of poplar, Ligustrum lucidum, Melia azedarach, Chinese tallow tree some of the local urban street tree species also in each area are distributed, indicating that these species in urban green space system in Xuzhou City, with good succession and adaptation ability. Therefore, in the process of green maintenance, should pay attention to its protection and management.

Key words: Xuzhou city  green space  herbaceous community 

目  录

摘要Ⅰ

Abstract-Ⅱ

目录Ⅲ

图清单-Ⅳ

表清单-Ⅳ

1 引言1

2 研究方法1

2.1调查方法-2

2.2数据处理-2

3 研究区概况-3

4 研究结果3

4.1物种组成3

4.2物种组成的空间分布-8

5 结论与建议-12

参考文献-14

致谢-15

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