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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 41号
  1. 部局別インデックス
  2. 農学部

国頭マージの浸入特性に関する研究 : 土壌侵食に関連して(生産環境学科)

http://hdl.handle.net/20.500.12000/3774
http://hdl.handle.net/20.500.12000/3774
c459919e-809d-4593-8595-301eec928e10
名前 / ファイル ライセンス アクション
KJ00000161754.pdf KJ00000161754.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2008-02-14
タイトル
タイトル 国頭マージの浸入特性に関する研究 : 土壌侵食に関連して(生産環境学科)
言語 ja
作成者 翁長, 謙良

× 翁長, 謙良

ja 翁長, 謙良

吉永, 安俊

× 吉永, 安俊

ja 吉永, 安俊

志茂, 守信

× 志茂, 守信

ja 志茂, 守信

Onaga, Kenryo

× Onaga, Kenryo

en Onaga, Kenryo

Yoshinaga, Anshun

× Yoshinaga, Anshun

en Yoshinaga, Anshun

Shimo, Morinobu

× Shimo, Morinobu

en Shimo, Morinobu

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
主題
言語 ja
主題Scheme Other
主題 国頭マージ
言語 ja
主題Scheme Other
主題 浸入能
言語 ja
主題Scheme Other
主題 土壌侵食
言語 ja
主題Scheme Other
主題 濁度
内容記述
内容記述タイプ Other
内容記述 この研究は国頭マージ地帯における土壌侵食の土壌要因の1つである浸入のメカニズムの解明を目的としたもので, 主として散水浸入量と湛水浸入量についての実験的研究である。結果及び考察は以下の通りである。(1)散水浸入において, 湛水後の積算浸入量と時間の関係はKostiakov型の式D=CT^n(ここでD=積算浸入量, T=時間, C・n=定数)によく適合した。(2)散水浸入において, 積算浸入量は初期含水比及び降雨強度に関係なく, 60分間で約10mmであった。(3)散水浸入強度は, 試験開始後60分において, 湛水浸入強度の1/5∿1/8であった。(4)国頭マージ地帯における土壌侵食の最も大きな土壌要因は浸入特性であり, 降雨時における土壌表面でのクラスト形成が浸入量の激減に関与していることが考察された。
内容記述タイプ Other
内容記述 The purpose of this study is to clear the fundamental cause of soil erosion of Kunigami Maaji Soil. Rainfall infilration and ponded infiltration of Kunigami Maaji Soil were measured. The result obtained are as follows. (1) In rainfall infiltration, the relationship between cumulative infiltration after ponding and time could be expressed by the Kostiakov's type of equation (D=CTn). (2) In rainfall infiltration, cumulative infiltration was sbout 10mm after 60 minute regardless of initial water content and rainfal intensity. (3) After 60 minute rainfall infiltration rate was 1/5 to 1/8 rate that of ponded infiltration rate. (4) It was found that on Kunigami Maaji regions, the most fundamental cause of soil erosion problem is decrease of infiltration rate by crust formation on the soil surface by raindrop impact.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/3774
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0370-4246
収録物識別子タイプ NCID
収録物識別子 AN00250548
収録物名
言語 ja
収録物名 琉球大学農学部学術報告
書誌情報
号 41, p. 269-277
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