{"_buckets": {"deposit": "5fbe5326-1db4-4afd-8c07-6294dd4aec3a"}, "_deposit": {"id": "2002761", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2002761"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02002761", "sets": ["1642837919706", "1642838407312"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "\u30de\u30f3\u30b0\u30ed\u30fc\u30d6\u7fa4\u843d\u306e\u8868\u5c64\u5806\u7a4d\u6ce5\u306b\u304a\u3051\u308b\u7406\u5316\u5b66\u6027\u3068\u9271\u7269\u6027(\u751f\u7523\u74b0\u5883\u5b66\u79d1)", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "Physicochemical and mineralogical properties of surface sediment on the mangrove swamp (Department of Enviromental Sciences and Technology)", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": 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"subitem_description_type": "Other"}, {"subitem_description": "It is considered that a community of mangrove not only play an important role in the protection of living things, the formation of terrestrial parts and the purification of natural environment, but also play in the cultivation of fisheries resources, the conservation of national land and the preservation of environment. It was purpose of the present investigation to study on the substances of surface material sedimenting on the mudflat area in mangrove swamp around Fukito river at Ishigaki island. As for sediment in sea bottom near by the river mouth, there were coarse sand in particle size fraction, more than 8.4 in pH, 4mS/cm in EC, less than 1me/100g in CEC and 62me/100g in exchangeable Ca content which was different from the order of concentration of ion in sea water. The main primary mineral was quartz accompanied with calcite and feldspar. Secondary mineral mainly was kaolinite accompanied with illite, vermiculite, vermiculite-chlorite intergrade mineral, vermiculite/chlorite mixed layer mineral. The other hand, as for surface soils of land side, there were 32\u0026acd;57% clay content in particle size fraction, about 6.5 in pH, less than 0mS/cm in EC, about 19me/100g in CEC and low in exchangeable base content in general. Compared with sediment in sea bottom, there mainly was quartz in primary mineral constituent of surface soils accompanied with cristobalite instead of calcite and almost resembled in secondary mineral constituent of them. It was suggested that sea water have a great influence on both sediment in river and community of mangrove indicating mostly more than 8.4 in pH and remarkable height in EC than surface soils. CEC tended to be high in both sediment in the upper side of river and community of mangrove. The high value of their exchangeable base content suggested dissolution of something like coral sand derived from the seacoast. Both sediment mainly was quartz in primary mineral but differed in accompaniment of feldspar. Calcite also was contained in sediment in river near by the river mouth. And amphibole or cristobalite rarely were contained in both sediment in river and community of mangroves. In comparison with sediment in river, secondary mineral mainly was kaolinite indicating considerable high content in community of mangroves and was similar in illite while it was approximately half in vermiculite and a little low in vermiculite-chlorite intergrade mineral. As for neighborhood of the junction of each tributary river, there were contained much varieties of mineral in addition to kaolinite and illite in the sediment in river.", "subitem_description_type": "Other"}, {"subitem_description": "\u7d00\u8981\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/3732"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0370-4246"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250548"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8\u5b66\u8853\u5831\u544a"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "The Science Bulletin of the Faculty of Agriculture. 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