淮河源区域12种园林地被植物竞争格局

淮河源区处于北亚热带向暖温带过渡地带,地被植物种类繁多.选取淮河源地区有代表性的12种典型地被植物,进行应用表现情况调查和竞争力评价抽样调查,选用园林地被植物权重、养护投入和抗杂草入侵能力3个指标,计算得出竞争力指数.研究表明,淮河源区园林地被植物栽植后5~10年其竞争力的强弱可充分表现出来,其中木本植物整体竞争力大于草本,而藤本植物竞争力最强,但也有少量草本如红花酢浆草,竞争力超过部分木本植物,值得大量推广运用.研究淮河源区园林地被植物群落组成及竞争,对园林工程实践工作有积极意义.

The Competitive Pattern About 12 Ground Cover Plants of Urban Lanscapes in Headwaters Area of Huaihe River Basin

The climate condition of Headwaters of the Huaihe river Basin was from north subtropical zone to warm temperate zone. The kinds of ground cover plants was very various. Twelve kinds of ground cover plants which were common in Headwaters of the Huaihe river Basin selected to study the application performances and the quantitative research on competitive pattern. Three items of data about the distribution area, the maintenance inputs and the weed resistant ability was used for calculating the competitiveness index of ground cover plants. Results showed that the competitiveness of ground cover plants would be fully displayed when they have been planted for five to ten years in Headwaters of the Huaihe river Basin. The overall competitiveness of woody plants was stronger than herbs, and the competitiveness of vines was strongest. But there were also a few herbs such as Oxalis corymbosa, its competitiveness was stronger than some woody plants. According to the competitiveness of the plants could guide protecting biological diversity in garden engineering.