File
Title Transcription
サシツ ドジョウ ノ ドジョウ スイブン トクセイ キョクセン ト ソノ オンド イゾンショウ ニ ツイテ
Title Alternative
On the Soil Moisture Characteristic Curve of Sandy Soil and Its Temperature Dependence
Authors
Abstract
The soil moisture characteristic curves of sandy soils were determined by using the soil column method and their temperature dependence was examined. An analytical expression fitting the observed data is: Sℯ=1/{1+(αh)ⁿ} m where Sℯ is the effective saturation,h is the matric suction head,and α,m,n are the parameters to be determined experimentally. The temperature coefficient of matric suction,which was calculated from the experimentally determined expression,greatly exceeded the values expected from the c1assical surface tension-temperature relationship. Larger values of temperature coefficient were obtained in decomposed granite in comparison to dune sand. The trapped air in the unsaturated soi1 system was considered to have resulted in the discrepancy between the observed and calculated temperature coefficients.
Publisher
鳥取大学農学部砂丘利用研究施設.
Content Type
Departmental Bulletin Paper
Link
ISSN・ISBN
0285-2845
NCID
AN00174665
Journal Title
鳥取大学農学部砂丘研究所報告
Current Journal Title
鳥取大学農学部砂丘研究所報告
Volume
22
Start Page
1
End Page
8
Published Date
1983-03
Text Version
Publisher
Rights
(pdfファイル作成は農林水産省農林水産技術会議事務局筑波事務所)
Citation
鳥取大学農学部砂丘研究所報告. 1983, 22, 1-8
Department
Faculty of Agriculture/Graduate School of Agriculture
Language
Japanese