Data Set Citation:
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When using this data, please cite the data package:
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Uryu Experimental Forest, 雨龍研究林 .
Tree census, Long-term permanent plot No.8, Uryu experimental forest, North Hokkaido Experimental Forests (JaLTER), 1989-2009, 毎木調査, 長期観察林番号8号, 雨龍研究林, 北海道北研究林(JaLTER).
jalter_hokkaido_kita_15.9.2
(https://db.cger.nies.go.jp/JaLTER/metacat/metacat/jalter_hokkaido_kita_15.9.2/jalter-en)
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General Information: |
Title: | Tree census, Long-term permanent plot No.8, Uryu experimental forest, North Hokkaido Experimental Forests (JaLTER), 1989-2009, 毎木調査, 長期観察林番号8号, 雨龍研究林, 北海道北研究林(JaLTER). |
Identifier: | jalter_hokkaido_kita_15.9.2 |
Abstract: |
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 1989, followed by repeated tree censuses (10year interval)., 北海道大学雨龍研究林109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、1989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.
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Keywords: |
- •long-term, permanent plot, Uryu
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Involved Parties
Data Set Owners: |
Individual: | Uryu Experimental Forest, 雨龍研究林 |
Organization: | Uryu Experimental Forest, Northern Forestry Research and Development Office, Forest Research Station, 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森林圏ステーション北管理部雨龍研究林 |
Address: |
Mosiri,母子里, |
Horokanai, 幌加内, Hokkaido, 北海道, 074-0741 Japan, 日本, |
Horokanai,北海道, 074-0741 Japan, 日本 |
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Data Set Contacts: |
Individual: | Uryu Experimental Forest, 雨龍研究林 |
Organization: | Uryu Experimental Forest, Northern Forestry Research and Development Office, Forest Research Station, 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森林圏ステーション北管理部雨龍研究林 |
Address: |
Mosiri,母子里, |
Horokanai, 幌加内, Hokkaido, 北海道, 074-0741 Japan, 日本, |
Horokanai,北海道, 074-0741 Japan, 日本 |
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Data Set Characteristics
Geographic Region: |
Geographic Description: | Uryu Experimental Forest 109 ID of the plot No.8, 雨龍研究林109林班 長期観察林番号8 |
Bounding Coordinates:
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West: | 0.0 degrees
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East: | 0.0 degrees
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North: | 0.0 degrees
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South: | 0.0 degrees
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Sampling, Processing and Quality Control Methods
Step by Step Procedures
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Step 1: |
Description:
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Location, 位置
The study plot is located in compartment 109 of the Uryu Experimental Forest., 調査地は雨龍研究林109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 ).
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Step 2: |
Description:
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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.
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Step 3: |
Description:
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Diameter at breast height, 胸高直径
SFrom 1989 to 1999, 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(1989年から1999年まで).
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Instrument(s):
| Scale, 輪尺 |
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Step 4: |
Description:
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Girth at breast height, 胸高周囲長
Since 2009, 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(2009年以降).
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Instrument(s):
| Steel tape, コンベックス |
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Step 5: |
Description:
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Height, 樹高
1989 to 1999, Tree height was measured with a scale pole. 測定対象木の樹高を測桿ポールを用いて計測.(1989年から1999年まで)
Since 2009, Tree height was measured with a scale pole and ultrasonic hypsometer. 2009年は測桿ポールと超音波測高器を用いて計測
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Instrument(s):
| Scale pole, 測桿ポール, ultrasonic hypsometer. 超音波測高器 |
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Step 6: |
Description:
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Survival, 生枯
Survival of the target trees was confirmed by observation., 測定対象木の生死を確認.
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Step 7: |
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Crown width, 樹冠幅
Crown width was measured with a tape measure toward 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.
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Instrument(s):
| tape measure, 巻尺 |
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Step 8: |
Description:
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Grade of wood quality, 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.
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Step 9: |
Description:
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Details of wood damage, 欠点
Special instructions on wood damage., 測定対象木の欠点を記録.
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Step 10: |
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Details of wood quality, 被害
Special instructions on wood quality., 測定対象木の被害を記録.
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Data Set Usage Rights
Data 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. |
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