|
Data Set Citation:
|
|
When using this data, please cite the data package:
|
Uryu Experimental Forest, 雨龍研究林 .
tree census, Long-term observation plot No.3, Uryu experimental forest, Hokkaido, Japan, 1988-2008, 毎木調査, 長期観察林番号3号, 雨龍研究林, 北海道.
jalter_hokkaido_kita_17.3.4
(https://db.cger.nies.go.jp/JaLTER/metacat/metacat/jalter_hokkaido_kita_17.3.4/jalter-en)
|
| General Information: |
| Title: | tree census, Long-term observation plot No.3, Uryu experimental forest, Hokkaido, Japan, 1988-2008, 毎木調査, 長期観察林番号3号, 雨龍研究林, 北海道. |
| Identifier: | jalter_hokkaido_kita_17.3.4 |
| Abstract: |
A Abies sachalinensis 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 (at5-10year interval)., 北海道大学雨龍研究林123林班ﾄﾄﾞ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、樹種、胸高周囲長（胸高直径）、樹高、生枯、枝下高、樹幹級、被害、樹冠幅、欠点を計測している.
|
| Keywords: |
- long-term
- permanent plot
- Uryu
|
| |
Involved Parties
| Data Set Owners: |
|
Individual: | Uryu Experimental Forest, 雨龍研究林 |
|
Organization: | 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 |
|
Address: |
| Moshiri, 母子里, |
| Horokanai, 幌加内, Hokkaido, 北海道 074-0741 Japan, 日本 |
|
|
Phone:
|
|
|
Phone:
|
|
|
Email Address:
|
|
|
Web Address:
|
|
|
| Data Set Contacts: |
|
Individual: | Uryu Experimental Forest, 雨龍研究林 |
|
Organization: | 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 |
|
Address: |
| Moshiri, 母子里, |
| Horokanai, 幌加内, Hokkaido, 北海道 074-0741 Japan, 日本 |
|
|
Phone:
|
|
|
Phone:
|
|
|
Email Address:
|
|
|
Web Address:
|
|
|
Data Set Characteristics
| Geographic Region: |
| Geographic Description: | Plot No.3, compartment 123 in the Uryu Experimental Forest, 雨龍研究林123林班 長期観察林番号3 |
|
Bounding Coordinates:
|
| West: | 142.11 degrees
|
| East: | 142.11 degrees
|
| North: | 44.12 degrees
|
| South: | 44.12 degrees
|
|
|
|
|
Sampling, Processing and Quality Control Methods
|
Step by Step Procedures
|
| Step 1: |
|
Description:
|
Location, 位置
The study plot is located in compartment 123 of the Uryu Experimental Forest., 調査地は雨龍研究林123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 ).
|
|
| Step 2: |
|
Description:
|
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.
|
|
| Step 3: |
|
Description:
|
Girth at breast height, 胸高直径
Description: 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）.
|
|
Instrument(s):
| scale, 輪尺 |
|
| Step 4: |
|
Description:
|
Girth at breast height(Diameter at breast height), 胸高周囲長（胸高直径）
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）.
|
|
Instrument(s):
| steel tape, コンベックス |
|
| Step 5: |
|
Description:
|
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.
|
|
Instrument(s):
| scale pole, 測桿ポール |
|
| Step 6: |
|
Description:
|
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.
|
|
Instrument(s):
| tape measure, 巻尺 |
|
| Step 7: |
|
Description:
|
Grade of wood quality 2, 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
|
|
| Step 8: |
|
Description:
|
Height of the crown base, 枝下高
Height of the crown base was measured by observation with a scale pole., 測定対象木の枝下高を測桿ポールを用いて計測.
|
|
Instrument(s):
| scale pole, 測桿ポール |
|
| Step 9: |
|
Description:
|
Survival, 生枯
Survival of the target trees was confirmed by observation., 測定対象木の生死を確認.
|
|
| Step 10: |
|
Description:
|
Details of wood damage, 測定対象木の欠点を記録
Special instructions on wood damage.
|
|
| Step 11: |
|
Description:
|
Details of wood quality, 測定対象木の被害を記録
Special instructions on wood quality.
|
|
|
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. |
|