Modeling crop land soil moisture and impacts of supplimental irrigaiton in a rainfed region of Bangladesh


A robust water balance model has been tested for predicting soil moisture levels and supplemental irrigation requirement of a rainfed region of Bangladesh. The predictions were used for improving the understanding of the impacts of rainwater harvesting on rainfed agriculture. The climate data (i.e., rainfall, temperature, evaporation, and evapotranspiration) were used as inputs for predicting the variations in soil moisture. Soil moisture levels under rainfed and supplementary irrigation conditions were compared. Results showed that rainwater harvesting i.e., rain water storage tanks during rainy seasons can be potentially useful for storing rainwater, which can be utilized for enhancing crop land soil moisture during dry seasons for enhancing crop yield. The study presented here will be useful for improving and disseminating rainwater harvesting approaches for enhancing water availability in rainfed regions.

Share and Cite:

P. Pandey and S. Biswas, "Modeling crop land soil moisture and impacts of supplimental irrigaiton in a rainfed region of Bangladesh," Journal of Agricultural Chemistry and Environment, Vol. 3 No. 1B, 2014, pp. 16-19. doi: 10.4236/jacen.2014.31B004.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Human Development Report (2010) The real wealth of nations: pathways to human development. United Nations Development Program (UNDP).
[2] Rockstr?m, J., Falkenmark, M., Karlberg, L., Hoff, H., Rost, S. and Gerten, D. (2009) Future water availability for global food production: The potential of green water for increasing resilience to global change. Water Resources Research, 45, Article ID: W00A12.
[3] Rockstr?m, J., Barron, J. and Fox, P. (2003) Water productivity in rain-fed agriculture: Challenges and opportunities for smallholder farmers in drought-prone tropical agro-ecosystems. In: Kijne, J.W., Barker, R. and Molden, D., Eds., Water Productivity in Agriculture: Limits and Opportunities for Improvements, CABI, Publ., Oxon, 145-162.
[4] World Bank (2010) Water resource management. Washington, DC.,,contentMDK:21630583~menuPK:4602445~pagePK:148956~piPK:216618~theSitePK:4602123,00.html
[5] Pandey, P.K., Soupir, M.L., Singh, V.P., Panda, S.N. and Pandey, V. (2011) Modelling rainwater storage in distributed reservoir systems in humid subtropical and tropical savannah regions. Water Resources Management, 25, 3091-3111.
[6] Panigrahi, B., Panda, S.N. and Mull, R. (2001) Simulation of water harvesting potential in rainfed ricelands using water balance model. Agricultural Systems, 69, 165-182.
[7] Pandey, P.K., Panda, S.N. and Panigrahi, B. (2006) Sizing on-farm reservoirs for crop-fish integration in rainfed farming systems in Eastern India. Biosystems Engineering, 93, 475-489. ttp://
[8] Pandey, P.K., der Zaag, P., Soupir, M.L. and Singh, V.P. (2013) A new model to simulate hydro-economic potential of rainwater harvesting and supplemental irrigation rainfed agriculture. Water Resources Management, 27, 3145-3164.
[9] (2013) Bangladesh Agricultural Research Council, Ministry of Agriculture, Government of Peoples Republic of Bangladesh.
[10] (2013) Indian Meteorological Department (IMD).
[11] (2013) Hydrology and Water Re-sources Information Systems for India.

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.