Data Set Citation:
When using this data, please cite the data package:
Nakagawa Experimental Forest .
tree census, Long-term permanent plot No.743008, Osasima Reserved Forest No.08 (compartment 169), Nakagawa Experimental Forest, Hokkaido, tree census in 1999
JaLTER-Hokkaido-Kita.473.3 (https://db.cger.nies.go.jp/JaLTER/metacat/metacat/JaLTER-Hokkaido-Kita.473.3/jalter-en)
General Information:
Title:tree census, Long-term permanent plot No.743008, Osasima Reserved Forest No.08 (compartment 169), Nakagawa Experimental Forest, Hokkaido, tree census in 1999
(ja) 毎木調査,長期観察林No.743008,筬島保存林No.8(169林班),中川研究林,北海道,1999年調査
Identifier:JaLTER-Hokkaido-Kita.473.3
Abstract:
In Hokkaido University, Nakagawa Experimental Forest, compartment 169 the natural forest. In 1974, a tree census with an area of 1ha (50m x 50m x 4plot)was established. Girth at breast height,Survival,Shortage of wood,Grade of wood quality 1 were measured at 5-year intervals5th is 10 years. (ja) 北海道大学中川研究林169林班天然林動態調査のため,1974年に面積1ha(50m x 50m x 4plot)の調査区を設けた。5年間隔5回目が10年間隔で胸高直径,生枯,欠点,樹形級を測定した。
Keywords:tree census / 森林調査(しんりんちょうさ):
  • long-term permanent plot
    (ja) 長期観察林(ちょうきかんさつりん)
  • tree census
    (ja) 毎木調査(まいぼくちょうさ)
study site / 調査サイト:
  • compartment169
    (ja) 169林班
  • Nakagawa
    (ja) 中川
  • Hokkaido
    (ja) 北海道
forest type / 森林タイプ:
  • natural forest
    (ja) 天然林
Data Table, Image, and Other Data Details:
Metadata download: Ecological Metadata Language (EML) File
Data Table:Nakagawa_OsasimaNo08_1999.csv / Nakagawa_OsasimaNo08_1999.csv ( View Metadata | Download File download)

Involved Parties

Data Set Owners:
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
Data Set Contacts:
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
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

Geographic Region:
Geographic Description:Long-term permanent Plot No.01. Point "a". / 杭aのxy座標wgs84(度10進)
Bounding Coordinates:
West:  142.194882  degrees
East:  142.194882  degrees
North:  44.756979  degrees
South:  44.756979  degrees
Geographic Region:
Geographic Description:Long-term permanent Plot No.01. Point "b". / 杭bのxy座標wgs84(度10進)
Bounding Coordinates:
West:  142.195503  degrees
East:  142.195503  degrees
North:  44.756895  degrees
South:  44.756895  degrees
Geographic Region:
Geographic Description:Long-term permanent Plot No.01. Point "c". / 杭cのxy座標wgs84(度10進)
Bounding Coordinates:
West:  142.195028  degrees
East:  142.195028  degrees
North:  44.755126  degrees
South:  44.755126  degrees
Geographic Region:
Geographic Description:Long-term permanent Plot No.01. Point "d". / 杭dのxy座標wgs84(度10進)
Bounding Coordinates:
West:  142.194407  degrees
East:  142.194407  degrees
North:  44.755211  degrees
South:  44.755211  degrees
Time Period:
Date:
1974-05-07
Time Period:
Date:
1979
Time Period:
Date:
1984
Time Period:
Date:
1989-03-13
Time Period:
Date:
1999-04-16
Time Period:
Date:
2004-03-23
Time Period:
Date:
2009-04-13
Time Period:
Date:
2014-04-08
Time Period:
Date:
2019-03-18
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:Acer pictum Thunb. subsp. mayrii (Schwer.) H.Ohashi
Common Name:ベニイタヤ
Classification:
Rank Name:Species
Rank Value:Juglans mandshurica Maxim. var. sachalinensis (Komatsu) Kitam.
Common Name:オニグルミ
Classification:
Rank Name:Species
Rank Value:Tilia japonica (Miq.) Simonk.
Common Name:シナノキ
Classification:
Rank Name:Species
Rank Value:Ulmus davidiana Planch. var. japonica (Rehder) Nakai
Common Name:ハルニレ
Classification:
Rank Name:Species
Rank Value:Padus ssiori (F.Schmidt) C.K.Schneid.
Common Name:シウリザクラ
Classification:
Rank Name:Species
Rank Value:Phellodendron amurense Rupr.
Common Name:キハダ

Sampling, Processing and Quality Control Methods

Step by Step Procedures
Step 1:
Description:

Location / 位置

The tree census plot is located in compartment 169 of Nakagawa Experimental Forest. The area of the tree census is 1ha (50m x 50m x 4plot).
(ja) 調査地は中川研究林第169林班に位置する。調査区の面積は1ha(50m x 50m x 4plot)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

This dataset is provided under a Creative Commons Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0; https://creativecommons.org/licenses/by-nc/4.0/deed.en). Data users should acknowledge as follows in any publications where the dataset contributed to its content: "Data for XXX was provided by Field Science Center for Northern Biosphere, Hokkaido University". Data users will notify the Data Set Contact when any publication based on or derived from the Data Set is distributed.
(ja) データの利用は、クリエーディブ・コモンズの非営利4.0国際に従って提供します (CC BY-NC 4.0; https://creativecommons.org/licenses/by-nc/4.0/deed.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ください。
Access Control:
Auth System:JaLTER
Order:allowFirst
Allow: [read] public
Metadata download: Ecological Metadata Language (EML) File