{"created":"2021-03-01T06:43:12.360455+00:00","id":25261,"links":{},"metadata":{"_buckets":{"deposit":"3bea4cde-7337-4aad-9f1f-7b3ac5ae5908"},"_deposit":{"id":"25261","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25261"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00025261","sets":["27:2466:2467:2497","9:504:2469:2498"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Stand dynamics and prediction of regenerated broad-leaved forests : An empirical study at Mt. Karasawa in Tochigi prefecture, Japan"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-03-25","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"127","bibliographicPageStart":"65","bibliographicVolumeNumber":"122","bibliographic_titles":[{"bibliographic_title":"東京大学農学部演習林報告"}]}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"本研究は，放置された里山林に代表されるような広葉樹再生林の管理を念頭に置き，栃木県唐沢山を対象に資料を集め動態解析を行い，その結果を基にした成長モデルによる予測を試みたものである。林分成長について解析したところ，（１）林分全体の傾向として，胸高断面積合計（BA）の大きいプロットの方が大量に枯損し，粗成長量には上限と下限が存在する可能性があること，（２）林分全体の変化には，下層木の成長量と上層木の枯損量が強く影響していること，（３）下層木の落葉広葉樹では，上層木の多少が成長に関係している可能性があるが，枯損に対しては上層木の影響は低いこと，（４）下層木の常緑広葉樹の成長や枯損については，上層木の量の影響はあまりみられないこと，（５）落葉広葉樹よりも常緑広葉樹の方が枯損量，枯損率が低く，枯損しにくいこと，（６）落葉広葉樹の成長量の大小が下層木や上層木全体の成長量の傾向に強く影響していること，などが明らかになった。以上の知見をもとに既存の天然林成長予測モデル（FSD）を改良し，広葉樹再生林の成長を予測したところ，従来の方法を用いたモデルの予測結果より現実の進界量を正確に予測しており，進界量の予測に今回のモデルが有効であることが示唆され，改良モデルが広葉樹再生林の成長予測を行うことが十分可能であることが示された。","subitem_description_type":"Abstract"},{"subitem_description":"The objective of this study is to analyze stand dynamics and predict stand growth of regenerated broad-leaved forests in Mt. Karasawa for forest planning. Regenerated broad-leaved forests cover extensive areas of unmanaged countryside forests in Japan. Analysis of stand growth results show: (1) some field plots with large stand basal area (BA) have larger amount of mortality than the small stand BA plots do and the relationship between BA and gross growth for all field plots have upper and lower limits. (2) Growth in lower layer trees and mortality in upper layer trees affect stand growth more than mortality and ingrowth in lower layer trees and growth in upper layer trees. (3) The growth of deciduous trees in the lower layer is probably affected by BA in the upper layer but its mortality is not. (4) Evergreen trees’ growth and mortality in the lower layer are not related to BA in the upper layer. (5) Also evergreen trees have smaller amount of mortality and a lower mortality rate than deciduous trees and (6) the growth of deciduous trees strongly affects both the upper and lower layer growth trend of all trees. Based on these results, the existent stand growth model FSD (Feedback type Stand growth simulation model using Diameter transition probability) developed for mixed forest was modified to predict regenerated broad-leaved forests. The modified model predicts growth better than the existent one, thus this model is useful for the management of regenerated broad-leaved forests.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"53624","nameIdentifierScheme":"WEKO"}],"names":[{"name":"NISHIKAMI, Ai"}]}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学大学院農学生命科学研究科附属演習林"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162451","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03716007","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"610","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"The Tokyo University Forests"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学大学院農学生命科学研究科"},{"subitem_text_value":"Graduate School of Agricultural and Life Sciences, University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"西上, 愛"}],"nameIdentifiers":[{"nameIdentifier":"53623","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-09"}],"displaytype":"detail","filename":"ersh122005.pdf","filesize":[{"value":"3.4 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ersh122005.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/25261/files/ersh122005.pdf"},"version_id":"e7e2a2c9-7657-4492-868a-faff9715ce39"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"広葉樹再生林","subitem_subject_scheme":"Other"},{"subitem_subject":"上層木","subitem_subject_scheme":"Other"},{"subitem_subject":"下層木","subitem_subject_scheme":"Other"},{"subitem_subject":"生育形","subitem_subject_scheme":"Other"},{"subitem_subject":"成長モデル","subitem_subject_scheme":"Other"},{"subitem_subject":"Regenerated broad-leaved forests","subitem_subject_scheme":"Other"},{"subitem_subject":"upper layer trees","subitem_subject_scheme":"Other"},{"subitem_subject":"lower layer trees","subitem_subject_scheme":"Other"},{"subitem_subject":"tree groups","subitem_subject_scheme":"Other"},{"subitem_subject":"growth model","subitem_subject_scheme":"Other"}]},"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","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"広葉樹再生林の林分動態解析と成長予測 : 栃木県唐沢山における実証的研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"広葉樹再生林の林分動態解析と成長予測 : 栃木県唐沢山における実証的研究"}]},"item_type_id":"4","owner":"1","path":["2498","2497"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-07-17"},"publish_date":"2012-07-17","publish_status":"0","recid":"25261","relation_version_is_last":true,"title":["広葉樹再生林の林分動態解析と成長予測 : 栃木県唐沢山における実証的研究"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:03:35.154924+00:00"}