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Predicting hydraulic properties of seasonally impounded soils

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Title Predicting hydraulic properties of seasonally impounded soils
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Creator N. G. PATIL, G. S. RAJPUT, R. K. NEMA and R. B. SINGH
 
Subject Agricultural crop management
 
Description Not Available
Agricultural crop management decisions often require data on hydraulic properties of soils. Little
information is available on hydraulic properties of clay soils that are impounded by rainwater
(known as ‘Haveli’ lands) every year during the monsoon season in large tracts of Madhya Pradesh in
India. Estimating hydraulic properties using global pedotransfer functions (PTFs) is one possible way
to collect such information. Rules in the widely used global PTF Rosetta were executed to obtain
estimates of two important hydraulic properties, namely soil water retention characteristics (SWRC)
and saturated hydraulic conductivity (Ks). SWRC estimates obtained with maximum input (particle
size distribution, bulk density, field capacity and permanent wilting point) in Rosetta were relatively
closer to the laboratory-measured data as compared with the estimates obtained with lower levels of
input. Root mean square error (RMSE) of estimates ranged from 0.01 to 0.05 m3 /m3 . Hierarchical PTFs to predict Ks from basic soil properties were derived using statistical regression and artificial neural networks. Evaluation of these indicated that neural PTFs were acceptable and hence could be
used without loss of accuracy
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Date 2024-07-01T10:59:42Z
2024-07-01T10:59:42Z
2009-10-08
 
Type Research Paper
 
Identifier N. G. PATIL, G. S. RAJPUT, R. K. NEMA and R. B. SINGH
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/83823
 
Language English
 
Relation Not Available;
 
Publisher Not Available