{"created":"2023-06-19T08:46:11.234364+00:00","id":4935,"links":{},"metadata":{"_buckets":{"deposit":"6d79fc62-e1c3-478e-8257-6b3c93cf1f51"},"_deposit":{"created_by":14,"id":"4935","owners":[14],"pid":{"revision_id":0,"type":"depid","value":"4935"},"status":"published"},"_oai":{"id":"oai:kpu.repo.nii.ac.jp:00004935","sets":["47:273:418"]},"author_link":["8047"],"control_number":"4935","item_1696926521561":{"attribute_name":"その他（別言語等）","attribute_value_mlt":[{"subitem_alternative_title":"Fundamental studies on the weight increment of AKAMATSU (Pinus densiflora S. et Z.) stand (I) (Forestry)","subitem_alternative_title_language":"en"}]},"item_3_biblio_info_12":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1974-10-31","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"130","bibliographicPageStart":"88","bibliographicVolumeNumber":"26","bibliographic_titles":[{"bibliographic_title":"京都府立大學學術報告. 農學","bibliographic_titleLang":"ja"},{"bibliographic_title":"The scientific reports of Kyoto Prefectural University. Agriculture","bibliographic_titleLang":"en"}]}]},"item_3_description_10":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"本研究は林木の生長論的立場からアカマツ林の重量およびセルロース生産量の経時変化の過程を明らかにしようとしたものである。これは森林経営の基礎としての林木の生長法則を解明するための一環として, 林分の重量生産量ならびにセルロース生産量の査定とその経時変化としての生長過程の共通的法則性を見出すことに主たる目的がある。この研究での重量による生長過程の解明には総乾物量と樹体の形成に直接的に関与する細胞膜の骨格特質であるセルロースを採りあげた。すなわち, 容積密度数の樹幹内変動の基礎的バターンやその生長過程に影響をもつ抽出成分およびリグニン等を除去したホロセルロースならびにαセルロースを総乾物量と対比させて追跡することによって, いわば材質の総合的な指標としての容積密度数と樹木の純然たる生長の度合を示す単位容積当りのセルロース含有量の経時的変化のパターンから重量生長の過程を解明しようとしたものである。さらに林分の生長過程を考える場合, 林分を構成する各個樹の経時的変化量を考えるだけでなく構成メンバーの変化もとらえなければならない。このような林分構成の変化の過程を正しくとらえるために, 材積の場合と同様に重量によるそれぞれの収穫表を調製し, これらの収穫表に基づいて生長過程の解明を行なった。したがって, この方法によって研究を進めるためには木材の材質特性や林木の成熟現象あるいは単木ないしは林木についての重量測定および生長過程の推定等の前提課題の解明が必要であった。とくに測定方法んんらびに現存量の推定等に関する技術的諸問題は本研究の主目的達成に至る基礎的課題として重要視した。","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_3_description_11":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"The purpose of this investigation was to find out the general principles of incremental process in dry weight and cellulose productivities of AKAMATSU (Pinus densiflora S. et Z.) stand, in the case of making use of wood components as the raw materials. The mentioned subject must be investigated as the fundamental studies for the forest management. The solution of the weight incremental process used in this investigation was carried out by the weight yield tables, prepared with each productivity of wood components. Therefore, if we had taken the above method, it was necessary to estimate the standerd values of bulk density (based on ovendry weight and green volume), the standard contents of hollocellulose and α-celulose with the stand age. Thus, it bacame a premise problem of research in due order, for instance, establishment of measuring the bulk density and cellulose contents of a standing tree, decision of representative position in the stem and so on. The important items among the results of studies on the weight increment in this paper were as follows : I) Throughtout each age-class tress which was taken from the natural forest stand of AKAMATSU in Kyoto district, it was recognized that the variation coefficient of bulk density and of cellulose contents at every position in stem was less than 10%, except the part of pith in basal stem. Furthermore, there was a pattern that bulk density, hollocellulose and α-cellulose contents decreased gradually with the height of cross section and it increased from the pith to the bark. The pattern of the variation was so called the pinus type. II) The amount of hollocellulose and α-cellulose contents could not be estimated by the ratio estimate to the bulk density, because the variance of ratio of celluloses contents to the bulk density was significant by the position in stem. In the other way, the correlation of hollocellulose and α-cellulose contents with the deresinous bulk density of wood which extracted with alcohol-benzene solution were highly recognized. Therefore, the amount of cellulose contents could be estimated by the regression estimate based on the above correlation. III) Every development process of the standard bulk density and the standard contents of celluloses in single tree increased at a high pace during 10 &acd; 25 years, and its increasing pace gradually slowed down after the thrifty period, finally, which kept constant. It could be expressed by means of the growthcurve equation for the described above the time series variation. So, examination was carried out on the applicability of growth-curves which became the object of this investigation such as Mitscherich's Gompertz's, Logistic's and Corrected exponential curve. As a result, Gompertz's equation was most appropriate for the above growth-curve. Y=Ka^b^t where Y=Standard contents per unit volume. K=Final reache value of standard contents. t=Age of tree. a, b=Constant (0 < a< 1,0 < b < 1) IV) The position of representative wood quality in the stem was found. It was very simialr to the standerd value of bulk density and cellulose contents. Vertically, the position located at 10% of the tree height above ground, horizontally, it occupied the part of sapwood inner about 10 annual rings from the bark in 10% section above ground. V) It was recognized that the applicability of nondestructive testing technique with Soft-X-Ray and Densitometer to estimate the bulk density of standing tree through increment core was highly available. It might be one of the most important method to survey the productivity of forest stand, because it made us measure efficiently the standard bulk density of forest stand by random sampling method based on the above technique.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_3_source_id_1":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN00062275","subitem_source_identifier_type":"NCID"}]},"item_3_source_id_20":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00757373","subitem_source_identifier_type":"PISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"妹尾, 俊夫","creatorNameLang":"ja"},{"creatorName":"セノオ, トシオ","creatorNameLang":"ja-Kana"},{"creatorName":"Senoo, Toshio","creatorNameLang":"en"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-02-20"}],"displaytype":"detail","filename":"KJ00000078934.pdf","filesize":[{"value":"4.5 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"label":"KJ00000078934.pdf","url":"https://kpu.repo.nii.ac.jp/record/4935/files/KJ00000078934.pdf"},"version_id":"8d782dfd-cda1-4bc9-ab85-0114e7795fda"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper"}]},"item_title":"アカマツ林の重量生長に関する基礎的研究 (I)(林学部門)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"アカマツ林の重量生長に関する基礎的研究 (I)(林学部門)","subitem_title_language":"ja"}]},"item_type_id":"3","owner":"14","path":["418"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2017-02-20"},"publish_date":"2017-02-20","publish_status":"0","recid":"4935","relation_version_is_last":true,"title":["アカマツ林の重量生長に関する基礎的研究 (I)(林学部門)"],"weko_creator_id":"14","weko_shared_id":-1},"updated":"2024-03-27T01:28:29.684317+00:00"}