The Role of Litter and Humus Layer as a Mortality Factor of Seedlings of Japanese Red Pine, Pinus densiflora Sieb. et Zucc.

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概要

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• The process of decrease in seedlings of Japanese red pine (Pinus densiflora Sleb, et Zucc.) and the effect of litter and humus layers on the mortality were studied in their stand and adjacent bare land. After the rainy season, only small number of individuals died in the bare land but more seedlings died in the forest. The number of seedlings killed by drought was greater in the forest than in the bare land. The population of naturally occurring current year seedlings was larger in the forest than in the bare land, but that of 1- to 5-year-old seedlings was smaller. Severe summer drought exceeding the permanent wilting point was observed only in the forest F-H horizon where greater part of seedling roots distributed, this may be one of major mortality factors. Inhibitory substances to seedling growth in fresh fallen pine needles were also suggested.

• 一般社団法人日本森林学会の論文
• 1996-02-16

著者

• Kikuchi Junichi

  Faculty Of Agriculture Kyoto University

• Akema Tamio

  Faculty Of Agriculture Kyoto University

• Akema Tamio

  Forest Microbiology Group Kyushu Research Center Forestry And Forest Products Research Institute

• Iida Souichirou

  Faculty of Agriculture, Kyoto University

• Futai Kazuyoshi

  Faculty of Agriculture, Kyoto University

• Futai Kazuyoshi

  Faculty Of Agriculture Kyoto University:(present)biological Environment Institute Kansai Environment

• 明間 民央

  (独)森林総合研究所森林微生物研究領域

• Futai Kazuyoshi

  Faculty Of Agriculture Kyoto University

• Iida Souichirou

  Faculty Of Agriculture Kyoto University

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