publicreadTree census, Long-term permanent plot No.5, Uryu experimental forest, North Hokkaido Experimental Forests (JaLTER), 1988-2008, 毎木調査, 長期観察林番号5号, 雨龍研究林, 北海道北研究林(JaLTER).Uryu Experimental Forest, 雨龍研究林Field Science Center for Northern Biosphere, Hokkaido University, 北海道大学北方生物圏フィールド科学センターMoshiri, 母子里Horokanai, 幌加内Hokkaido, 北海道074-0741Japan, 日本+81-165-38-2125+81-165-38-2410uryu@fsc.hokudai.ac.jphttp://forest.fsc.hokudai.ac.jp/~exfor/fr/Mixed forest has been investigated to examine its stand structure and dynamics extraction. A study plot with area 0.50-ha was introduced in 1988., followed by repeated tree censuses (5 or 10year interval), 北海道大学雨龍研究林313林班針広混交林の林分構成・伐採率等とその後の成長量の推移に関する調査.long-term, permanent plot, uryuData users are required to place an acknowledgement in any publication in which the data are used, and to send a copy of the publication with an usage report., 公表にあたっては、データの出典を謝辞等に明記するとともに、成果品および利用報告を提出する.1988199319982008Uryu Experimental Forest 313 ID of the plot No.5, 雨龍研究林313林班 長期観察林番号50.00.00.00.01332913229562Location, 位置The study plot is located in compartment 313 of the Uryu Experimental Forest., 調査地は雨龍研究林313林班に位置する. The size of the study plot is 5000m2 (50×100 m; N00 00 00, E000 00 00; N00 00 00, E000 00 00; N00 00 00, E000 00 00; N00 00 00, E000 00 00 ).Targets to measure, 測定対象The census targeted trees with diameter at breast height (1.3 m) equal to or larger than 10-cm in the plot. Trees were identified by metal plate, and their species names were recorded., 調査区内の胸高直径10cm以上の樹木を対象とした. 金番で個体識別し、樹種名を記録した.Diameter at breast height, 胸高直径From 1988 to 1998, diameter at breast height was measured with a caliper., 測定対象木の胸高直径を輪尺を用いて計測(1988年から1998年まで).Scale, 輪尺Girth at breast height, 胸高周囲長Since 2008, girth at breast height was measured with a steel tape., 測定対象木の胸高周囲長をコンベックスを用いて計測(2008年以降).Steel tape, コンベックスHeight, 樹高Tree height was measured by observation with a scale pole, 測定対象木の樹高を測桿ポールを用いて計測.Scale pole, 測桿ポールSurvival, 生枯Survival of the target trees was confirmed by observation., 測定対象木の生死を確認.Grade of wood quality 2, 樹形級Code indication grade of wood quality, applied for coniferous forests. 1:overstory trees with good wood quality. 2:understory trees, which is expectable to become a good dominant tree. 3a:Trees, which interrupt a better tree. 3b:Trees with unstraight stem or a sign of death, decay or weakening., 樹形級区分は広葉樹林及び針広混交林に適用する. 1: 優勢木 2: 下層木(将来優勢木になる可能性を持つ優良木) 3a: あばれ木 3b: 枯損木・半枯損木・被害木・形質不良木・幹形不良木・傾斜木・倒木.Details of wood damage, 欠点Special instructions on wood damage., 測定対象木の欠点を記録.Details of wood quality, 被害Special instructions on wood quality., 測定対象木の被害を記録.