Data Set Citation:
When using this data, please cite the data package:
Nakagawa Experimental Forest .
tree census, Long-term permanent plot No.833209, Management Examination Forest No.9 (compartment 182), Nakagawa Experimental Forest, Hokkaido, tree census in 1983
JaLTER-Hokkaido-Kita.687.4 (https://db.cger.nies.go.jp/JaLTER/metacat/metacat/JaLTER-Hokkaido-Kita.687.4/jalter-en)
General Information:
Title:tree census, Long-term permanent plot No.833209, Management Examination Forest No.9 (compartment 182), Nakagawa Experimental Forest, Hokkaido, tree census in 1983
(ja) 毎木調査,長期観察林No.833209,経営試験林No.9(182林班),中川研究林,北海道,1983年調査
Identifier:JaLTER-Hokkaido-Kita.687.4
Abstract:
Hokkaido University Nakagawa experimental Forest compartment 182 In order to investigate the stand structure and dynamics of forest stand forest Management Examination Forest, a study area of 0.5 ha area was established in 1983.Measuring the girth at breast height every 5 years. (ja) 北海道大学中川研究林182林班 経営試験林No.10の林分構造および動態を調べるため、1983年に面積0.5haの調査区を設け、5年周期で、本数、胸高周囲長を計測している
Keywords:Tree census / 森林調査:
  • long-term observation plot
    (ja) 長期観察林
  • Nakagawa
    (ja) 中川
  • Hokkaido
    (ja) 北海道
  • Management Examination Forest
    (ja) 経営試験林
measurement / 測定:
  • species
    (ja) 樹種
  • diameter at breast height
    (ja) 胸高直径
Data Table, Image, and Other Data Details:
Metadata download: Ecological Metadata Language (EML) File
Data Table:Nakagawa_KeieishikenrinNo09_1983.csv / Nakagawa_KeieishikenrinNo09_1983.csv ( View Metadata | Download File download)

Involved Parties

Data Set Owners:
Individual: Nakagawa Experimental Forest (ja) 中川研究林
Organization:Field Science Center for Northern Biosphere, Hokkaido University
(ja) 北海道大学北方生物圏フィールド科学センター
Address:
Otoineppu, Hokkaido 098-2501 Japan
(ja) 日本 098-2501 北海道 音威子府村
Phone:
+81-1656-5-3216 / 01656-5-3216 (voice)
Phone:
+81-1656-5-3218 / 01656-5-3218 (fax)
Email Address:
nakagawa@fsc.hokudai.ac.jp
Web Address:
http://forest.fsc.hokudai.ac.jp/~exfor/Nkef/indexNk.htm
Data Set Contacts:
Individual: Nakagawa Experimental Forest (ja) 中川研究林
Organization:Field Science Center for Northern Biosphere, Hokkaido University
(ja) 北海道大学北方生物圏フィールド科学センター
Address:
Otoineppu, Hokkaido 098-2501 Japan
(ja) 日本 098-2501 北海道 音威子府村
Phone:
+81-1656-5-3216 / 01656-5-3216 (voice)
Phone:
+81-1656-5-3218 / 01656-5-3218 (fax)
Email Address:
nakagawa@fsc.hokudai.ac.jp
Web Address:
http://forest.fsc.hokudai.ac.jp/~exfor/Nkef/indexNk.htm
Associated Parties:
Individual: Nakagawa Experimental Forest (ja) 中川研究林(なかがわけんきゅうりん)
Organization:Field Science Center for Northern Biosphere, Hokkaido University
(ja) 北海道大学北方生物圏フィールド科学センター
Address:
Otoineppu 483,
Otoineppu, Hokkaido 098-2501 Japan
(ja) 日本 098-2501 北海道(ほっかいどう) 中川郡(なかがわぐん)音威子府村(おといねっぷむら)
(ja)字音威子府(あざおといねっぷ)483
Phone:
+81-1656-5-3216 / 01656-5-3216 (voice)
Phone:
+81-1656-5-3218 / 01656-5-3218 (fax)
Email Address:
nakagawa@fsc.hokudai.ac.jp
Web Address:
http://www.hokudaiforest.jp
Individual: staff room of Forest Research Station (ja) 森林圏統括管理部(しんりんけんとうかつかんりぶ)
Organization:Field Science Center for Northern Biosphere, Hokkaido University
(ja) 北海道大学北方生物圏フィールド科学センター
Address:
Kita-9, Nishi-9, Kitaku,
Sapporo, Hokkaido 060-0809 Japan
(ja) 日本 060-0809 北海道 札幌市
(ja)北区北9西10
Phone:
+81-1656-5-3216 / 011-706-3651 (voice)
Phone:
+81-1656-5-3218 / 011-706-3451 (fax)
Email Address:
shinrin@fsc.hokudai.ac.jp
Web Address:
http://www.hokudaiforest.jp

Data Set Characteristics

Time Period:
Date:
1983-03-22
Time Period:
Date:
1991-03-26
Taxonomic Range:
Taxonomic System:
Classification Citation:
Title:Y List
(ja) 「BG Plants 和名−学名インデックス」 (YList)
Author(s):
Individual: /Yonekura, Kajita (ja) 米倉 浩司, 梶田 忠
BOOK:
Publisher:
Organization:http://www.ylist.info/
(ja) http://www.ylist.info/
ID Name:
Organization:Unknown
Procedures:Unknown
Classification:
Rank Name:Species
Rank Value:Quercus crispula Blume
Common Name:ミズナラ
Classification:
Rank Name:Species
Rank Value:Betula ermanii Cham.
Common Name:ダケカンバ
Classification:
Rank Name:Species
Rank Value:Acer pictum Thunb. subsp. mayrii (Schwer.) H.Ohashi
Common Name:ベニイタヤ
Classification:
Rank Name:Species
Rank Value:Abies sachalinensis (F.Schmidt) Mast.
Common Name:トドマツ
Classification:
Rank Name:Species
Rank Value:Kalopanax septemlobus (Thunb.) Koidz.
Common Name:ハリギリ

Sampling, Processing and Quality Control Methods

Step by Step Procedures
Step 1:
Description:

Location / 位置

The tree census plot is located in compartment 182 of Nakagawa Experimental Forest. The area of the tree census is 0.08ha (40m x 20m).
(ja) 調査地は中川研究林第182林班に位置する。調査区の面積は0.08ha(40m x 20m)である。

Step 2:
Description:

Targets to measure / 測定対象

The target trees were 18cm or more in girth at breast height (1.3 m). Individual trees were identified using numbered metal plates.
(ja) 金板を調査木に取り付け個体識別した。胸高周囲長18cm以上(全木)を調査対象とした。

Instrument(s): metal plate / アルミ製金板
Step 3:
Description:

Species / 樹種名

Species of the targeted trees were recorded.
(ja) 測定対象木の樹種を記録した。

Step 4:
Description:

Girth at breast height, Diameter at breast height / 胸高周囲長(きょうこう しゅういちょう)、胸高直径(きょうこうちょっけい)

In the survey at the time of setting, diameter at breast height (DBH: 1.3 m above ground) was measured with a caliper (2 cm unit). Since 2005, girth at breast height (GBH: 1.3 m above ground) has been measured with steel tape.
(ja) 設定当時の調査では、測定対象木の胸高直径(地上1.3m)を、輪尺(りんじゃく)を用いて2cm括約で計測した。 2005年以降の調査から、胸高周囲長(地上1.3mで測定)をコンベックスを用いて計測した。

Instrument(s): caliper (Before2004), steel tape(After2005) / 輪尺(2004年以前),コンベックス(2005年以降)
Step 5:
Description:

Survival / 生枯(せいこ)

Survival or death of the individual was visually measured.
(ja) 測定対象木の生死を確認した。

Step 6:
Description:

Shortage of wood / 欠点(けってん)

Shortage of wood of the targeted trees was measured. Description of wood damage: broken, fallen, fungal-damaged, insect-damaged, frost crack, bent, bifurcated, unavailable (as timber).
(ja) 測定対象木を木材として利用した場合の欠点を記録した。記載内容:折れ、倒れ、菌害木(きんがいぼく)、虫害木(ちゅうがいぼく)、凍裂木(とうれつぼく)、曲がり、二叉(ふたまた)、採材不能(さいざいふのう。木材として使用不可能)。

Step 7:
Description:

Grade of wood quality 1 / 樹形級(じゅけいきゅう)

Grade of tree quality was classified into four categories (after the 'Soviet' classification) for trees in broadleaved forests or in mixed forests. Code indications. 1: overstory tree with good wood quality, 2: understory tree, which is expectable to grow a good overstory tree, 3a: a tree which interrupt a better tree, 3b: a tree with unstraight stem or with a sign of death, decay or weakening.
(ja) 「樹形級」は広葉樹林及び針広混交林に適用し、樹木を以下の4つに区分する(ソビエト式樹形級区分に準拠)。1級:優勢木、2級: 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(1級・2級の樹木の生長を、直接阻害する樹木)、3b:幹形不良木・傾斜木.

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.Please read "JaLTER Data Policy".
(ja) 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して下さい.「JaLTERデータポリシー」もご覧下さい。
Access Control:
Auth System:JaLTER
Order:allowFirst
Allow: [read] public
Metadata download: Ecological Metadata Language (EML) File