{"_buckets": {"deposit": "141fdcb8-65e0-45ad-a6eb-d8c5513adcdb"}, "_deposit": {"id": "16848", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "16848"}, "status": "published"}, "_oai": {"id": "oai:soar-ir.repo.nii.ac.jp:00016848", "sets": []}, "author_link": ["48186", "48187", "48188", "48189", "48190"], "item_11_alternative_title_1": {"attribute_name": "\u305d\u306e\u4ed6\uff08\u5225\u8a00\u8a9e\u7b49\uff09\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "Present State of Lake Environment in Nagano prefecture in 1991"}]}, "item_11_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1995-03-31", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "62", "bibliographicPageStart": "51", "bibliographicVolumeNumber": "17", "bibliographic_titles": [{"bibliographic_title": "\u74b0\u5883\u79d1\u5b66\u5e74\u5831"}]}]}, "item_11_description_20": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "This report is an out1ine of the lake environment in Na gano pref. in 1991. This is based mainly on the result of \u201cThe Fourth National Survey on the Natural Environment conducted by EPA Japan. We took a part in the research on natural lakes in Nagano pref.For this investigation\uff0c39 lakes having as urface area larger than 0.01 km\u0027 were selected. These many lakeslocate in the northern part of Nagano area. According to the trophic state\uff0c39 lakes were classified into five groups (eutrophic: 8\uff0cm esotrophic: 13\uff0co ligotrophic: 13\uff0ca cidtrophic: 2a nd dystrophic :3) . The natural state of lake environment was judged based on the ratio of the length of natural shore line to the whole length of its shore line. The lake located over 1\uff0c500 m have been preserved mostly in the natural state. Most of them were located in special protection areas such as a national park. The lake environment at the lower altitude tends to deteriorate. For example\uff0ct he shore line more than 95% of Suwa-ko and Fukami\u5317e(759 and 484 m in altitude\uff0cre spectively) has been embanked artificialy The present state of lake environment in N agano prefecture is shown by the parameters related to water quality\uff0cs uch as transparency\uff0cC hlorophyll-a\uff0cC OD\uff0cn itrogen and phosphorus.", "subitem_description_type": "Abstract"}]}, "item_11_description_30": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7\uff08\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u7a2e\u985e\uff09", "attribute_value_mlt": [{"subitem_description": "Article", "subitem_description_type": "Other"}]}, "item_11_description_31": {"attribute_name": "\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\uff1amime\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_11_description_5": {"attribute_name": "\u5f15\u7528", "attribute_value_mlt": [{"subitem_description": 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