The performance of different fencing on growth, survival rate of plantation tree and forest floor vegetation

Nakamura Takuma, Cho Keiichiro, Yamauchi Kouhei, Ogata Taketo, Kaji Kiyohiro, Sasaki Hirokazu, Ougi Daisuke, Inoue Sachiko, Murata Shusuke, Yamauchi Koshiro, Hishi Takuo, Tashiro Naoaki, Ichihashi Ryuji

doi:10.15017/4776864

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鳥獣防除柵の構造的な違いが植栽木への食害や成長および林床植生に与える影響
チョウジュウボウジョサクノコウゾウテキナチガイガショクサイモクエノショクガイヤセイチョウオヨビリンショウショクセイニアタエルエイキョウ

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Abstract

To compare the performance of synthetic fiber nets and electric fences as wildlife prevention fences, we planted seedlings of Pieris japonica, Chamaecyparis obtusa and Quercus crispula in the 5 cm mesh net, 10 cm mesh net, electric fences, and control plots. Seedlings height and survival rate were recorded from 2015 to 2020. We also recorded the flora of these experimental plots in 2016 and 2021 to compare the changes of forest floor vegetation in the plots. Pieris japonica grew well in the control plot and most of the individuals survived. Tree height of Chamaecyparis obtusa was highest in the electric fence, and the survival rate was over 90 % in the 5 cm mesh net. The average height of Quercus crispula was only 87 cm and the survival rate were only 33 % due to shade by herbaceous plants. A total of 52 herbaceous species and tree seedlings in the forest floor were observed in 2016, and this number increased to 81 in 2021. In addition, seedlings of Pinus densiflora, Quercus crispula, Hydrangea paniculata and other pioneer species became established, suggesting that enclosing the floor of forest gap with fences may lead to the regional compensatory vegetation.

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九州大学農学部演習林報告

九州大学農学部演習林報告 103 29-39, 2022-03-29

The Kyushu University Forests

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