Data Set Citation:
When using this data, please cite the data package:
Uryu Experimental Forest, 雨龍研究林 .
Tree census, Long-term permanent plot No.10, Uryu experimental forest, North Hokkaido Experimental Forests (JaLTER), 1990-2010, 毎木調査, 長期観察林番号10号, 雨龍研究林, 北海道北研究林(JaLTER).
jalter_hokkaido_kita_16.7.1 (https://db.cger.nies.go.jp/JaLTER/metacat/metacat/jalter_hokkaido_kita_16.7.1/jalter-en)
General Information:
Title:Tree census, Long-term permanent plot No.10, Uryu experimental forest, North Hokkaido Experimental Forests (JaLTER), 1990-2010, 毎木調査, 長期観察林番号10号, 雨龍研究林, 北海道北研究林(JaLTER).
Identifier:jalter_hokkaido_kita_16.7.1
Abstract:
Betula platyphylla Sukaczev var. japonica (Miq.) H.Hara Secodary forest has been investigated to examine its stand structure and dynamics extraction. A study plot with area 0.25-ha was introduced in 1990, followed by repeated tree censuses (5 or 10year interval), 北海道大学雨龍研究林109林班シラカバ二次林の林分構成・伐採率等とその後の生長量の推移に関する調査.
Keywords:
  • long-term, permanent plot, uryu

Involved Parties

Data Set Owners:
Individual: Uryu Experimental Forest, 雨龍研究林
Organization: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
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/fr/
Data Set Contacts:
Individual: Uryu Experimental Forest, 雨龍研究林
Organization: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
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/fr/

Data Set Characteristics

Geographic Region:
Geographic Description:Uryu Experimental Forest 109 ID of the plot No.10, 雨龍研究林109林班 長期観察林番号10
Bounding Coordinates:
West:  0.0  degrees
East:  0.0  degrees
North:  0.0  degrees
South:  0.0  degrees
Time Period:
Date:
1990
Time Period:
Date:
1995
Time Period:
Date:
2000
Time Period:
Date:
2010

Sampling, Processing and Quality Control Methods

Step by Step Procedures
Step 1:
Description:

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. 調査区の面積は 2500m2 (50×50 m)である. 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:

Diameter at breast height, 胸高直径

From 1990 to 2000, 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(1990年から2000年まで).

Instrument(s): Scale, 輪尺
Step 4:
Description:

Girth at breast height, 胸高周囲長

Since 2010, 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(2010年以降).

Instrument(s): Steel tape, コンベックス
Step 5:
Description:

Height 1, 樹高 1

From 1990 to 2000, Tree height was measured by observation with a scale pole, 測定対象木の樹高を測桿ポール(1990-2000年).

Instrument(s): Scale pole, 測桿ポール
Step 6:
Description:

Height 2, 樹高 2

Since 2010, Tree height was measured by observation with a Hypsometer, 測定対象木の樹高を超音波測高器を用いて計測(2010年以降).

Instrument(s): Hypsometer, 超音波測高器
Step 7:
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 8:
Description:

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.

Instrument(s): Scale pole, 測桿ポール
Step 9:
Description:

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.

Step 10:
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 11:
Description:

Details of wood damage, 欠点

Special instructions on wood damage., 測定対象木の欠点を記録.

Step 12:
Description:

Details of wood quality, 被害

Special instructions on wood quality., 測定対象木の被害を記録.

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