Development of a soil physico-environmental database on prefectural scale for Japanese agricultural land for evaluating soil temperature and moisture

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  • 土壌温度・水分変動を予測するための都道府県別土壌物理環境データベースの作成
  • ドジョウ オンド ・ スイブン ヘンドウ オ ヨソク スル タメ ノ トドウフケン ベツ ドジョウ ブツリ カンキョウ データベース ノ サクセイ

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<p>Available database on soil physical properties in each soil classification are uniform throughout Japan. Therefore, it remains to be clarified how soil properties are spatially distributed at the prefectural scale. To quantify the soil physico-environmental properties in each prefecture, we comprehensively analyzed the saturated volumetric water content, saturated hydraulic conductivity, and soil moisture characteristics using a dataset compiled by The Basic Soil Environment Monitoring Project. Saturated volumetric water content in the fine-textured lowland soils was high in the northern part of Japan where the organic matter content is high. Andosols had less available water than the other soil types because of its lower bulk density and higher water retention. These results will be useful for fine-scale modeling calculations or agricultural management.</p>

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