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 (http://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林班トド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:
+81-165-38-2125 (voice)
Phone:
+81-165-38-2410 (fax)
Email Address:
uryu@fsc.hokudai.ac.jp
Web Address:
http://forest.fsc.hokudai.ac.jp/~exfor/Uref/uryu-e/out-ur-e.htm
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:
+81-165-38-2125 (voice)
Phone:
+81-165-38-2410 (fax)
Email Address:
uryu@fsc.hokudai.ac.jp
Web Address:
http://forest.fsc.hokudai.ac.jp/~exfor/Uref/uryu-e/out-ur-e.htm

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
Time Period:
Date:
1988
Time Period:
Date:
1998
Time Period:
Date:
2008

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.
Access Control:
Auth System:knb
Order:allowFirst
Allow: [read] public
Metadata download: Ecological Metadata Language (EML) File