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摘要：秋色叶树种是指在自然条件下入秋前后或经过下霜后叶片由绿色变为其他颜色，持续时间较长并具有较高观赏价值的树种[1]。在秋色叶植物研究中，过去多数以介绍秋色叶资源和园林应用为主，对于变色规律和变色时序研究较少；而秋色叶树种的变色规律受到气温变化、土壤、水分等环境因子的影响，本次研究以七桥瓮生态公园的秋色叶树种为研究内容，按照树种组成、群落结构、面积大小等因素划分出不同大小的地段为研究样地，以植物叶片开始变色为开始至叶片颓败为止，详细记录样地中变色范围、色相、种类、环境条件等因素对秋色叶树种色彩变化的影响，同时筛选出优势秋色叶树种，为进一步改善七桥瓮公园植物配置，丰富和优化季相景观提出参考。25665
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毕业论文关键词：秋色叶树种；公园；植物配置；变色规律
The Application and Color Observation Research of Autumn Color Trees in Seven Bridge Urn Park
Abstract： Autumn leaf tree species refers to the natural conditions before and after the fall or after the leaves after the leaves from green to other colors, longer duration and has a high ornamental value of the tree species, in the autumn leaves plant research in the past, most of the introduction of autumn Leaf resources and garden applications. The discoloration laws of the autumn leaves were affected by the biological factors such as environment, soil and water. The study was carried out on the autumn leaves of the Nanjing Qiaoqiao Eagle Ecological Park. Tree species as the theme, according to the species composition, community structure, area size and other factors to pide the different size of the area for the study of the sample, the plant leaves began to change color until the beginning of the decadent leaves, detailed records of the color range, hue, Environmental conditions and other factors on the color change of autumn leaf trees, and screened out the dominant varieties of autumn leaves, which could provide reference for further improving the plant configuration, enriching and optimizing the seasonal landscape of Qiqiao urn park.
Key words: Autumn leaf tree species; park; plant configuration; discoloration law
目 录
摘要： 1
关键词： 1
Abstract： 1
Key words: 1
1 研究地概况 2
1.1研究地地理位置 2
1.2 研究地气候和水文条件 2
2 研究内容与方法 2
2.1 研究内容 2
2.1.1秋色叶树种的概念 2
2.1.2 应用研究 2
2.1.3 呈色研究 3
2.2 研究方法 3
2.2.1 样地的选择 3
2.2.2群落数量特征分析 4
3 数据收集 5
3.1 七桥瓮公园植物组成 5
3.2 各样地的植物组成 7
3.2.1 样地1 7
3.2.2 样地2 7
3.2.3 样地3 7
3.2.4 样地4 7
3.2.5 样地5 8
3.2.6 样地6 8
3.2.7 样地7 8
4 数据分析 8
4.1 样地群落数量特征 8
4.1.1 样地1 8
4.1.2 样地2 8
4.1.3 样地3 9
4.1.4 样地4 9
4.1.5 样地5 10
4.1.6 样地6 10
4.1.7 样地7 10
4.2变色时序和呈色周期变化 11
4.2.1 样地1 11
4.2.2 样地2 12