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Pedotransfer functions: a tool for estimating hydraulic properties of two major soil types of India

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Title Pedotransfer functions: a tool for estimating hydraulic properties of two major soil types of India
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Creator P. Tiwary, N. G. Patil, T. Bhattacharyya, P. Chandran, S. K. Ray, K. Karthikeyan, D. Sarkar, D. K. Pal, J. Prasad, C. Mandal, D. K. Mandal, G. S. Sidhu, K. M. Nair, A. K. Sahoo, T. H. Das, R. S. Singh, R. Srivastava, T. K. Sen, S. Chatterji, G. P. Obireddy, S. K. Mahapatra, K. S. Anil Kumar, K. Das, A. K. Singh, S. K. Reza, D. Dutta, S. Srinivas, M. V. Venugopalan, K. Velmourougane , A. Srivastava, M. Raychaudhuri, D. K. Kundu, K. G. Mandal, G. Kar, S. L. Durge, G. K. Kamble, M. S. Gaikwad, A. M. Nimkar, S. V. Bobade, S. G. Anantwar, S. Patil, K. M. Gaikwad, V. T. Sahu, H. Bhondwe, S. S. Dohtre, S. Gharami, S. G. Khapekar , A. Koyal, K. Sujatha, B. M. N. Reddy, P. Sreekumar, D. P. Dutta, L. Gogoi, V. N. Parhad , A. S. Halder, R. Basu, R. Singh, B. L. Jat, D. L. Oad, N. R. Ola, K. Wadhai, M. Lokhande, V. T. Dongare, A. Hukare, N. Bansod, A. H. Kolhe, J. Khuspure, H. Kuchankar, D. Balbuddhe, S. Sheikh, B. P. Sunitha, B. Mohanty, D. Hazarika, S. Majumdar, R. S. Garhwal, A. Sahu, S. Mahapatra, S. Puspamitra, A. Kumar, N. Gautam, B. A. Telpande, A. M. Nimje, C. Likhar and S. Thakre
 
Subject Model efficiency, pedotransfer functions, regression analysis, saturated hydraulic conductivity, water retention
 
Description In recent years, georeferenced soil information system has gained significance in agricultural land-use
planning and monitoring the changes in soil properties/soil quality induced by land-use changes. The spatiotemporal information on saturated hydraulic conductivity (sHC) and soil water retention–release
behaviour is essential for proper crop and land-use planning. The sHC greatly influences the drainage
process and soil water retention–release behaviour, ultimately affecting the crop growth and yield. How ever, sHC and water retention are not measured in a routine soil survey and are generally estimated from
easily measurable soil parameters through pedotransfer functions (PTFs). In the present study, PTFs for
sHC and water retention were developed separately for the soils of two food-growing zones of India (the
Indo-Gangetic Plains (IGP) and the black soil region (BSR)). For the IGP soils, sHC is affected by the
increased subsoil bulk density due to intensive cultivation. In BSR, presence of Na+ and Mg++ ions affects the drainage and water retention of the soils. Therefore, these soil parameters were considered while developing the PTFs using stepwise regression technique in SPSS. The validation of PTFs was found to be satisfactory with low RMSE values and high model efficiency
 
Date 2024-07-01T11:09:00Z
2024-07-01T11:09:00Z
2014-11-10
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/83834
 
Language English
 
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Publisher Not Available