General Information: |
Title: | tree census, Long-term permanent plot No.932001, Managed conifer-hardwood mixed forest by group selection cutting in 20-sen Area No.3 (compartment 239), Teshio Experimental Forest, Hokkaido, tree census in 1998
(ja)
毎木調査, 長期観察林No.932001, 20線群状伐採地3(239林班), 天塩研究林, 北海道, 1998年調査 |
Identifier: | JaLTER-Hokkaido-Kita.1560.1 |
Abstract: |
In Hokkaido University, Teshio Experimental Forest, compartment 239, This site was established for observing succession of remained trees in a conifer-hardwood mixed stand after group selection cutting in 1990-1992. Since 1993, a tree census with an area of 0.5ha (100×50ⅿ) has been doing. Girth at breast height, diameter at breast height, tree height, survival, crown width, shortage of wood, grade of wood quality were measured at 5-year intervals (10-year intervals after the 3rd census). Measurements are different in each tree census year, please refer to the "Measurement method" described below. The forest was thinned at 2003-2005.
(ja)
北海道大学天塩研究林239林班において、群状択伐施業後(1990-1992 年実施)の針広混交天然林の林分の変化を観察するために設置された。1993年に面積0.5ha(100×50ⅿ)の調査区を設けた。約5年間隔(3回目調査以降は10年間隔)で胸高周囲長、胸高直径、樹高、生枯、樹冠幅、欠点、樹幹級等を測定している。(※測定項目は各調査年で異なるため、下記に記載の「測定方法」をご確認ください) 2003-2005年に択伐を実施した。
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Keywords: | tree census / 森林調査:
- 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:
- compartment 239
(ja)
239林班
- Teshio
(ja)
天塩 (てしお)
- Hokkaido
(ja)
北海道 (ほっかいどう)
forest type / 森林タイプ:
- Group selection cutting
(ja)
群状伐採 (ぐんじょう ばっさい)
- natural forest
(ja)
天然林 (てんねんりん)
- conifer-hardwood mixed forest
(ja)
針広混交林 (しんこう こんこうりん)
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Involved Parties
Data Set Owners: |
Individual: | Teshio Experimental Forest
(ja)
天塩研究林 (てしお 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: |
Toikanbetu, |
Horonobe-cho, Hokkaido 098-2943 Japan |
(ja)
日本 098-2943 北海道 (ほっかいどう) 幌延町 (ほろのべ ちょう) |
(ja)問寒別 (といかんべつ) |
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Phone:
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+81-1632-6-5211 / 01632-6-5211 (voice) |
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Phone:
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+81-1632-6-5003 / 01632-6-5003 (fax) |
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Email Address:
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Web Address:
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Data Set Contacts: |
Individual: | Teshio Experimental Forest
(ja)
天塩研究林 (てしお 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: |
Toikanbetu, |
Horonobe-cho, Hokkaido 098-2943 Japan |
(ja)
日本 098-2943 北海道 (ほっかいどう) 幌延町 (ほろのべ ちょう) |
(ja)問寒別 (といかんべつ) |
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Phone:
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+81-1632-6-5211 / 01632-6-5211 (voice) |
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Phone:
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+81-1632-6-5003 / 01632-6-5003 (fax) |
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Email Address:
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Web Address:
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Associated Parties: |
Individual: | Teshio Experimental Forest
(ja)
天塩研究林 (てしお 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: |
Toikanbetu, |
Horonobe-cho, Hokkaido 098-2943 Japan |
(ja)
日本 098-2943 北海道 (ほっかいどう) 幌延町 (ほろのべ ちょう) |
(ja)問寒別 (といかんべつ) |
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Phone:
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+81-1632-6-5211 / 01632-6-5211 (voice) |
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Phone:
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+81-1632-6-5003 / 01632-6-5003 (fax) |
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Email Address:
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Web Address:
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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 (ほっかいどう) 札幌市 (さっぽろ し) |
(ja)北区北9西9 |
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Phone:
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+81-11-706-3651 / 011-706-3651 (voice) |
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Phone:
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+81-11-706-3450 / 011-706-3450 (fax) |
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Email Address:
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Web Address:
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Data Set Characteristics
Geographic Region: |
Geographic Description: | Long-term permanent Plot 852001 Point 'a'. / 杭BP(XY座標wgs84, 度10進法) |
Bounding Coordinates:
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West: | 142.118254 degrees
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East: | 142.118254 degrees
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North: | 45.08547479 degrees
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South: | 45.08547479 degrees
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Geographic Region: |
Geographic Description: | Long-term permanent Plot 852001 Point 'b'. / 杭A(XY座標wgs84, 度10進法) |
Bounding Coordinates:
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West: | 142.1188712 degrees
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East: | 142.1188712 degrees
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North: | 45.08545728 degrees
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South: | 45.08545728 degrees
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Geographic Region: |
Geographic Description: | Long-term permanent Plot 852001 Point 'c'. / 杭B(XY座標wgs84, 度10進法) |
Bounding Coordinates:
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West: | 142.1188535 degrees
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East: | 142.1188535 degrees
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North: | 45.08452033 degrees
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South: | 45.08452033 degrees
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Geographic Region: |
Geographic Description: | Long-term permanent Plot 852001 Point 'd'. / 杭C(XY座標wgs84, 度10進法) |
Bounding Coordinates:
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West: | 142.1181817 degrees
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East: | 142.1181817 degrees
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North: | 45.08456678 degrees
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South: | 45.08456678 degrees
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Taxonomic Range: |
Taxonomic System: |
Classification Citation: |
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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 |
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Publication Date: | 2003 |
BOOK: |
Publisher: |
Organization: | http://www.ylist.info/
(ja)
http://www.ylist.info/ |
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ID Name: |
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Procedures: | Unknown |
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Classification: |
Rank Name: | Species |
Rank Value: | Abies sachalinensis (F.Schmidt) Mast. |
Common Name: | トドマツ |
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Classification: |
Rank Name: | Species |
Rank Value: | Sorbus commixta Hedl. |
Common Name: | ナナカマド |
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Classification: |
Rank Name: | Species |
Rank Value: | Acer pictum Thunb. |
Common Name: | イタヤカエデ |
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Classification: |
Rank Name: | Species |
Rank Value: | Picea jezoensis (Siebold et Zucc.) Carrière |
Common Name: | エゾマツ |
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Classification: |
Rank Name: | Species |
Rank Value: | Quercus crispula Blume |
Common Name: | ミズナラ |
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Classification: |
Rank Name: | Species |
Rank Value: | Kalopanax septemlobus (Thunb.) Koidz. |
Common Name: | ハリギリ |
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Sampling, Processing and Quality Control Methods
Step by Step Procedures
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Step 1: |
Description:
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Location / 位置
The tree census plot is located in compartment 239 of Teshio Experimental Forest. The area of the tree census is 0.5ha (100×50ⅿ).
(ja)
調査地は天塩研究林第239林班に位置する。調査区の面積は0.5ha(100×50ⅿ)である。
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Step 2: |
Description:
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Targets to measure / 測定対象
Individual trees were identified using numbered metal plates. In 1993, the census targeted trees with diameter at breast height (1.3m above ground) equal to or larger than 4-cm in the plot. Since 1998, the census targeted trees with diameter at breast height (1.3m above ground) equal to or larger than 6-cm in the plot.
(ja)
金板を調査木に取り付け個体識別した。1993年調査では、胸高直径(地上1.3m)4cm以上、1998年調査からは胸高直径(地上1.3ⅿ)6cm以上の樹木を調査対象とした。
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Instrument(s):
| metal plate / アルミ製金板 |
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Step 3: |
Description:
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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。
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Step 4: |
Description:
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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)
Until 1993, diameter at breast height (DBH: 1.3 m above ground) was measured with a caliper (2 cm unit). Since 1998, girth at breast height (GBH: 1.3 m above ground) was measured with a steel tape and converted into diameter.
(ja)
1993年調査までは、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。1998年調査から、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、その値を胸高直径に換算した。
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Instrument(s):
| caliper(Until 1993), steel tape(Since 1998) / 輪尺(1993年以前),コンベックス(1998年以降) |
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Step 5: |
Description:
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Tree Height / 樹高(じゅこう)
Until 1993, height was measured with a scale pole and naked eye observation. Since 2003, height was measured with Vertex transponder (0.1 m unit).
(ja)
1993年調査まで、測定対象木の樹高を、目視と測桿(そっかん)ポールを用いて計測した。2003年調査からは、バーテックストランスポンダーを用いて0.1m単位で計測した。
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Instrument(s):
| scale pole (Until 1993), Vertex transponder (Since 2003) / 測桿ポール(そっかんぽーる)(1993年以前), バーテックストランスポンダー(2003年以降) |
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Step 6: |
Description:
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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。
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Step 7: |
Description:
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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)。
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Step 8: |
Description:
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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 un-straight 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.
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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。 |
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