沿道樹木の湿害に与える要因 : 熊本港線の事例について

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  • エンドウ ジュモク ノ シツガイ ニ アタエル ヨウイン クマモトコウセン ノ
  • Studies on Excess Moisture Injury of Street Trees : A Case Study of Kumamoto Port Line

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Abstract

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The paper deals with the death of street trees caused by the excess moisture injury. The trees studied were Zelkoba serrata and Weigela coraeensis planted along the Kumamoto Port Line. As possible factors involved in the excess moisture injury, soil properties, topographic condition, water table and precipitation were investigated. The results obtained are summarized as follows; 1. Soil of the root zone in the planting pit is of good quality, but that located outside the root zone is of poor quality. 2. The water table is elevated during on irrigation period or on rainy days. 3. The most important factor causing the death of street trees is concluded to be the abnormal precipitation.

source:The technical bulletin of Faculty of Horticulture, Chiba University

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