publicreadTree census, Long-term permanent plot No.1, Uryu experimental forest, North Hokkaido Experimental Forests (JaLTER), 1988-2008, 毎木調査, 長期観察林番号1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/A Larix plantaion forest has been investigated to examine its stand structure and dynamics. A study plot with area 0.25-ha was introduced in 1988, followed by repeated tree censuses (10year interval)., 北海道大学雨龍研究林129林班カラマツ人工林の林分構造および動態を調べるため、1988年に面積0.25haの調査区を設け、10年間隔で、本数、胸高周囲長などを計測している.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.198819982008Uryu Experimental Forest 129 ID of the plot No.1, 雨龍研究林129林班 長期観察林番号10.00.00.00.01300836767770Location, 位置The study plot is located in compartment 129 of the Uryu Experimental Forest., 調査地は雨龍研究林129林班に位置する. The size of the study plot is 2500m2 (50×50 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.Height of the crown base, 枝下高The census targeted trees with Measured by observation with a scale pole to an accuracy of 1.0m, 調査区内の樹木の枝下高を測定.Scale pole, 測桿ポールCrown width, 樹冠幅Crown width was measured with a tape measure toward the 0, 90, 180 and 270-degree direction from the base., 測定対象木の樹冠幅を巻尺を用いて東西南北4方向について計測.Tape measure, 巻尺Grade of wood quality 1, 樹幹級Code indication grade of wood quality, applied for coniferous forests. 1:overstory trees with good wood quality 2:overstory trees with unstraight stem or a sign of death, decay or weakening, or those interrupt a better tree. 3:understory trees, which is expectable to continue good growth. 4:suppressed understory trees. 5:understory trees with unstraight stem or a sign of death, decay or weakening., 樹幹級区分は針葉樹林に適用する。1:上層木の中での優良木 2:上層木の中でのあばれ木・樹冠過弱木・樹冠偏奇木・分岐木・被害木 3:下層木の中での良木(将来良好な生育が見込まれるもの) 4:下層木の中での被圧木 5:下層木の中での生育衰退木・倒木・枯損木・傾斜木.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.testtestcolumn,ID of the plotID of the plotCode indication specific site99999999Species nameSpecies nameScientific name of the individualScientific name of the individual in JapaneseDiameter at breast heightDBHDiameter at breast height (1.3m from the ground) of the individualcentimeter0.1real