| 摘要: |
| 华南农业大学校园主要园林植物共有223种（含亚种和变种），隶属于62科166属。文章从区系地理学角度研究校园园林植物的地理成分及分布来源，结果表明：校园园林植物具有明显的热带性，热带性的科占总科数的80.00%，热带性的属占总属数的80.12%，其中泛热带分布的科（共35科）和属（共33属）都占有最高比例，占总科数的63.64%和总属数的19.88%，这与广州地处南亚热带季风气候特点相一致。从校园园林植物的来源来看，中国乡土植物有128种，占总种数的57.40%，其中岭南地区分布的植物有102种，占总种数的45.74%；而外来植物也有95种，占总种数的42.60%，所占比例与岭南乡土树种所占比例相近似，它们的大量应用在校园绿化造景中占有重要位置，使得校园岭南地区园林植物景观特色不明显，也带来了一些管理上的问题，建议以后校园园林建设时多选取岭南地区分布的植物种类，扩大岭南植物的属、种的比例。 |
| 关键词: 校园植物〓地理成分〓分布来源〓园林绿化 |
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| A Study of Floristic Geographical Element on Campus and Its Afforestation \=Significance——An Example from the Afforestaion of \=South China Agricultural University |
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Huang Chuanteng
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| Abstract: |
| There are 223 species (including subspecies and varieties) of plants on the South China Agricultural University campus, belonging to 62 families and 166 genera. Our study of the floristic geographical elements on campus showed that the plants have clear tropical characteristics, with 80.00% of the plants on campus belonging to tropical families, and 80.12% of the latter belonging to tropical genera. Of these, the families (35) and genera belonging to pantropical plants comprise the highest proportion, at 63.64% of the families and 19.88% of the genera. These results demonstrate that, in accordance with the southern tropical monsoon climate of Guangzhou, the dominant floristic geographical elements on the SCAU campus are tropical and subtropical. Of the plants on campus, 128 species were Chinese species, accounting for 57.4% of the total, of which 102 species were distributed in the Lingnan area (accounting for 45.74% of the total). Furthermore, 95 species were alien species, accounting for 42.6% of the total, a proportion close to the percentage of Lingnan local plants. These alien species are widely used in afforestation on campus, weakening the Lingnan landscape characteristics and causing some problems in landscape management. Thus, we propose that more Lingnan local species be used in the landscaping of the campus. |
| Key words: plants on campus, geographical element, distribution, afforestation |
