The Alien Plant Ligustrum Iucidum Escaping from Planting Sites to Indigenous Vegetation in Japan
| Autor: | Hiroaki Ishida, Tamotsu Hattori, Yoshinobu Hashimoto, Kanako Toi |
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| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | Journal of The Japanese Institute of Landscape Architecture. 68:713-716 |
| ISSN: | 1348-4559 1340-8984 |
| Popis: | In order to clarify that Ligustrum lucidum has invaded the wild in Japan, we researched by using literatures on how so many Ligustrum lucidum had been imported into Japan as a roadside tree over the last 23 years, and how many out of the 123 major rivers in Japan Ligustrum lucidum was found in.Then we investigated existence,number of individuals, distribution density and the growing condition of Ligustrum lucidum at the natural and artificial green districts in two new residential areas in western Japan. In result, we revealed that about 15 million Ligustrum lucidum were imported to Japan for the last 23 years and that Ligustrum lucidum has been distributed at 25.2 percent of the major rivers in Japan. 31.9 percent of natural green districts have been invaded by a lot of individuals of Ligustrum lucidum.The density of these was very high,and Ligustrum lucidum has grown well in natural and artificial forests. To our knowledge, we conclude that Ligustrum lucidum is an invasive alien plant in Japan. |
| Databáze: | OpenAIRE |
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