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Data on the gnawing damage on planted trees, vole abundance in October, snow accumulation and rodenticide application in Hokkaido during 1991–1999

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posted on 2022-10-24, 18:53 authored by Nobuhiro Akashi, Akira Unno, Keisuke Nakata

The gnawing damage on planted trees were surveyed by Hokkaido Government in June during 1991–1999 to clarify the quantitative relationship between vole abundance, rodenticide application and occurrence of damage. As a general rule, 100 trees were surveyed at each site.

The longitude and latitude are those of the centroid of forest compartment that including each study site. The longitude and latitude are the same when study sites were moved within the compartment. The code for the 3rd mesh (ca. 1 × 1 km) is presented for this location.

Trapping was carried out on 0.5 ha (50 ×100 m) grids, where 50 snap traps were set at 10-m intervals for three nights in October of the previous year. The number of voles Craseomys rufocanus bedfordiae captured per 150 trap night at each site were used as the vole abundance data.

The maximum snow depth and length of snow period in the survey year at each mesh were obtained from the Agro-Meteorological Grid Square Data, NARO.

Please see the manuscript (in Japanese) for more detail.



PG, Picea glehnii; LK, Larix kaempferi; LG, Larix gmelinii var. japonica and L. gmelinii x L. kaempferi; CJ, Cryptomeria japonica; PA, Picea abies; AS, Abies sachalinensis; BL, Broadleaved species

Age class

I, 1 - 5 years old; II, 6 - 10 years old; III, ≥11 years old


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野ネズミ発生予察調査によるエゾヤチネズミ捕獲数や殺そ剤散布と植栽木に対する被害の関係を明らかにするため,1991–1999年6月に、北海道によって植栽木に対するエゾヤチネズミ被害の調査が行われた。各調査地において,原則として100本が調査された。 データの緯度経度は,林班の重心の位置を示し,同一林班内で調査地を変更した場合も同一となっている。この位置について、3次メッシュコードも示している。 野ネズミ発生予察調査では,0.5ha(50 ×100 m)の範囲に50個のパンチュウトラップを10m間隔で3日間設置する。エゾヤチネズミ捕獲数のデータは,被害調査前年10月の150トラップ・ナイトあたり捕獲数を示す。 最大積雪深と積雪期間は,各調査年,メッシュについて,農研機構メッシュ農業気象データシステムのデータから算出した。 詳細については,論文を参照されたい。 データの説明 樹種区分 PG, アカエゾマツ; LK, カラマツ; LG, グイマツ及びグイマツ雑種F1; CJ, スギ; PA, ヨーロッパトウヒ; AS, トドマツ; BL, 広葉樹 齢級 I, I齢級; II, II齢級; III, III齢級以上

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©2022 Nobuhiro Akashi, Akira Unno, Keisuke Nakata

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    日本森林学会誌/Journal of Japanese Forest Society