No.087 研究課題 / Project
多摩川中流域におけるカタクリ群落の分布と生態および保護育成に関する研究Distribution and ecology of fawn lily communities in middle Tamagawa River basin -- Study for their protection| 学術研究 Academic Research |
No.087 |
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| 代表研究者 Principal Investigator |
鈴木 由告 Yoshitsugu Suzuki |
| 所属（採択当時） Affiliation |
カタクリ研究同好会代表 Representative, Katakuri Research Association |
| 研究内容要約 Research Summary |
カタクリは学術的にも自然観察あるいは自然愛好の対象としても近年強い関心をあつめているが野外における生活の実態は明らかにされていない面が多い。そのためカタクリ群落の存在意義が一般には自然科学的な意味では充分に認識されていない。 カタクリは本州北部から北海道に分布の中心がある温帯系の代表的な植物である。多摩川中流域は気候的にも植生的にも暖帯に属するが、暖帯北部周辺域にあるため、局部的には春は北向き斜面の落葉樹林下が温帯林的気候条件となり、カタクリをはじめとする春植物の小群落が形成される。 本研究ではそのような特異なカタクリ群落が形成される要因、および分布中心から離れた地域故に環境の変化に敏感に反応する個体群構成から、多摩川中流域のカタクリ群落の特性を明らかにしようとした。加えて消滅の度を早めつつあるカタクリ群落の保護対象の基礎的資料を提供するものである。 Fawn lily is recently attracting public attention: many people enjoy its flowering and are engaged in its preservation, while it is also academically interesting. However, its mode of life in a natural state is not well understood. In general, therefore, the importance of fawn lily communities is not fully appreciated in the field of natural science. Fawn lily is typically found in a temperate climate; in Japan, it is mainly distributed in northern Honshu and Hokkaido . The middle Tamagawa River basin shows warm-temperate characteristics, in both climate and vegetation. However, since it is located at the northern limit of warm-temperate zone, in spring the middle Tamagawa River basin shows temperate characteristics, on a localized basis, at deciduous forests on north-facing slopes. As a result, some spring ephemeral, including fawn lily, are allowed to form small communities there. We discussed factors that support the formation of such special communities of fawn lily. Also we examined the characteristics of fawn lily communities in the middle Tamagawa River basin , taking into account the fact that these communities are rather sensitive to environmental changes because they are far from its typical habitat. We hope that our data will serve as basic information for the preservation of fawn lily that is rapidly disappearing. |
| 共同研究者 Collaborators |
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| 研究全文 Full Text |
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