著者
青木 淳一
出版者
横浜国立大学
雑誌
横浜国立大学環境科学研究センター紀要 (ISSN:0286584X)
巻号頁・発行日
vol.24, no.1, pp.141-145, 1998

A soil zoological investigation was done under the Legacy Project of USA and 82 species of oribatid mites were collected from forest soils in the US Marine Corps located northeastern part of Okinawa Island. They contain one species new to Japan, Arborichthonius styosetosus Norton, and 28 species new to Okinawa Prefecture.
著者
奥田 重俊 中村 幸人
出版者
横浜国立大学
雑誌
横浜国立大学環境科学研究センター紀要 (ISSN:0286584X)
巻号頁・発行日
vol.15, no.1, pp.167-174, 1988
被引用文献数
1

Phytosociological studies of the hedgerows in rather old villages were conducted in the Amami islands of southwestern Japan in 1988. Three types of hedgerows were recognized ; 1. Ficus-virgata-Ficus microcarpa type, 2. Garcinia subelliptica type, and 3. Viburnum suspensum Fraxinus insularis type. Based on more widely surveyed materials, these types were classified through species combination into the following three hedgerow groups. A. ficus virgata group, characterized by Ficus virgata, Viburnum awabuki etc. and occurring young limestone soil originating from elevated coral reefs. B. Viburnum suspensum-Podocalpus macrophyllus group, classified by the Presence of Podocarpus macrophyllus and Viburnum suspensum, and found on well weathered soil on old limestone. C. Codiaeumt variegatum-Bougainvillea spectabillis group, Characterised by ornamental garden species and planted in the developed towns and cities. The distribution of these first two hedgerow groups seems to correspond to the potential natural vegetation.
著者
後藤 由里 梁 祖瑜 猪子 正憲 松野 武雄
出版者
横浜国立大学
雑誌
横浜国立大学環境科学研究センター紀要 (ISSN:0286584X)
巻号頁・発行日
vol.11, no.1, pp.47-51, 1984

A rapid and simple method for the determination of the sorbic acid and sorbates in jam and marmalade was studied by means of high performance liquid chromatography. By this method, tedious pretreatments such as extraction and filtration were omitted so that the time required for analysis could be within 30 min. Half of the examined non-preserve jams and marmalades contained less than 500mg/kg of sorbicacid, but preserve jams did not contain it.