Open Access Journal

ISSN : 2456-1290 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

Bypass Flow Behavior of Paddy Soil under Alternate Flooding and Drying Cycles in Cracked Clay Soil

Author : Punitha.M 1 Rajendran.R 2

Date of Publication :20th November 2017

Abstract: Bypass flow is rapid downward movement of water and solutes beyond the root zone of the crop along with air-filled of the cracked soils. Paddy field is generally subjected to many cycles of alternative flooding and drying condition (AFD) during rice growing period. This alternate condition cycles can create a large variation in soil structure that subsequently affects soil water and nutrient retention and migration. Bypass flow processes were studied in a cracked, previously puddle rice soil. Vertical continuity of soil cracks 12 mm in width was determined in the field using a morphological staining technique. An infiltration experiment showed that water was mainly absorbed in the subsoil between 0.3 and 0.6 m depth. This study aimed to investigate the soil shrinkage behavior, cracked surface area and its consequences on water percolation in paddy fields under AFD.

Reference :

    1. Beven,K., Germann,P.,1994. Macropores and water flow in soil. Water Resource Res., 18, 1311-1325.
    2. Peng,X., Horn,R. Anisotropic shrinkage and swelling of some organic and inorganic soils. Eur.J. Soil Science, 58, 98-107.

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