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Analysis of Water Budgets in Semi-Arid Lands from Soil Water Records

Published online by Cambridge University Press:  03 October 2008

C. J. Pilbeam ,
C. C. Daamen  and
L. P. Simmonds
C. J. Pilbeam
Affiliation:
Department of Soil Science, University of Reading, Whiteknights, Reading, RG6 2DW, England
C. C. Daamen
Affiliation:
Department of Soil Science, University of Reading, Whiteknights, Reading, RG6 2DW, England
L. P. Simmonds
Affiliation:
Department of Soil Science, University of Reading, Whiteknights, Reading, RG6 2DW, England
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Summary

Four components of the water budget for a growing season, namely storage, drainage, transpiration and direct evaporation from the soil surface, were estimated using a suite of techniques. The only data requirements were rainfall, neutron probe measurements of soil water content and microlysimeter measurements of evaporation from the soil. Data from four growing seasons at Kiboko, Kenya between 1990 and 1992 were used to provide examples of the estimations. Drainage was significant (about 10% of rainfall) in one season only; in the other seasons, total evaporation comprised at least 95% of the seasonal rainfall.

Drainage was determined using a relationship between unsaturated hydraulic conductivity and soil water content that was determined during the early part of the rainy season when water was penetrating to depth. This analysis made it possible to identify a critical water content at the base of the soil profile, above which there would be significant drainage. However, there are large errors associated with estimation of drainage if significant drainage occurs.

Estimates of direct evaporation from the soil surface were used as the basis of distinguishing transpiration from total evaporation. Microlysimetry was used to develop a model of evaporation from these sandy soils, which was based on the assumption that the evaporation from the soil surface following heavy rainfall is a unique function of time from rainfall, and little influenced by the presence of a sparse crop. This method showed that direct evaporation from the soil accounted for between 70 and 85% of total evaporation in seasons when total evaporation estimates ranged from 150 to 325 mm.

Type
Research Article
Information
Experimental Agriculture , Volume 31 , Issue 2 , April 1995 , pp. 131 - 150
Copyright
Copyright © Cambridge University Press 1995

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References

REFERENCES

Azam-Ali, S. N. (1983). Seasonal estimates of transpiration from a millet crop using a porometer. Agricultural Meteorology 30: 13–24.CrossRefGoogle Scholar
Azam-Ali, S. N. (1984). Environmental and physiological control o transpiration by groundnut crops. Agricultural and Forest Meteorology 33: 129–140.CrossRefGoogle Scholar
Allen, S. J. (1990). Measurement and estimation of evaporation from soil under sparse barley crops in northern Syria. Agricultural and Forest Meteorology 49:291–309.CrossRefGoogle Scholar
Black, T. A., Gardner, W. R. & Thurtell, G. W. (1969). The prediction of evaporation, drainage and soil water storage for a bare soil. Soil Science Society of America Proceedings 33:655–660.Google Scholar
Boast, C. W. (1986). Evaporation from bare soil measured with high spatial resolution. In Methods of Soil Analysis Part 1, Agronomy Monograph No. 9 (2nd Edition). 889–900 (Ed. Klute, A.). Madison Wisconsin: American Society of Agronomy.Google Scholar
Boesten, J. J. T. I & Stroosnijder, L. (1986). Simple model for daily evaporation from fallow, tilled soil under spring conditions in a temperate climate. Netherlands journal of Agricultural Science 34:75–90.Google Scholar
Choudhury, B. J. & Monteith, J. L. (1988). A four-layer model for the heat budget of homogeneous land surfaces. Quarterly Journal of the Royal Meteorological Society 114:373–398.Google Scholar
Cisse, L. & Vachaud, G. (1988). Influence d'apports de matière organique sur la culture de mil et d'arachide sur un sol sableux du Nord-Sénégal. l.—Bilans de consommation, production et développement racinaire. Agronomie 8: 315–326.Google Scholar
Cooper, P. J. M. (1983). Crop management in rainfed agriculture with special reference to water use efficiency. In Proceedings of the Seventeenth Colloquium of the International Potash Institute, Bern, 63–79.Google Scholar
Daamen, C. C., Simmonds, L. P., Wallace, J. S., Laryea, K. B. & Sivakumar, M. V. K. (1993). Use of microlysimeters to measure evaporation from sandy soils. Agricultural and Forest Meteorology 65:159–173.Google Scholar
Daamen, C. C. (1993). Evaporation from Sandy Soils beneath Crops in the Semi-arid Zone: a Study of the Use of Microlysimeters and Numerical Simulation. PhD thesis, University of Reading.Google Scholar
Dugas, W. A. (1990). Comparative measurement of stem flow and transpiration in cotton. Theoretical and Applied Climatology 42:215–221.CrossRefGoogle Scholar
Gardner, W. R. (1959). Solutions of the flow equation for the drying of soils and other porous media. Soil Science Society of America Proceedings 23:183–187.CrossRefGoogle Scholar
Glover, J. & Gwynne, M. D. (1962). Light rainfall and plant survival in East Africa. 1. Maize. Journal of Ecology 50: 111–118.CrossRefGoogle Scholar
Hanks, R. J. & Gardner, H. R. (1965). Influence of different diffusivity-water content relations on evaporation of water from soils. Soil Science Society of America Proceedings 29:495–498.CrossRefGoogle Scholar
Hillel, D. (1980). Applications of Soil Physics. New York: Academic Press.Google Scholar
Hubick, K. & Farquhar, G. (1989). Carbon isotope discrimination and the ratio of carbon gained to water lost in barley cultivars. Plant Cell and Environment 12:795–804.Google Scholar
Klaij, M. C. & Vachaud, G. (1992). Seasonal water balance of a sandy soil in Niger cropped with pearl millet, based on profile moisture measurements. Agricultural Water Management 21:313–330.CrossRefGoogle Scholar
Klocke, N. L., Heermann, D. F. & Duke, H. R. (1985). Measurement of evaporation and transpiration with lysimeters. Transactions of the American Society of Agricultural Engineers 28:183–189, 192.CrossRefGoogle Scholar
McGowan, M. & Williams, J. B. (1980). The water balance of an agricultural catchment. l. Estimation of evaporation from soil water records. Journal of Soil Science 31:217–230.Google Scholar
Philip, J. R. (1957). Evaporation and heat fields in the soil. Journal of Meteorology 14:359–366.Google Scholar
Ritchie, J. T. (1972). Model for predicting evaporation from a row crop with incomplete cover. Water Resources Research 8:1204–1213.Google Scholar
Sadras, V. O., Whitfield, D. M. & Connor, D. J. (1991). Regulation of evapotranspiration, and its partitioning between transpiration and soil evaporation by sunflower crops: a comparison between hybrids of different stature. Field Crops Research 28:17–37.CrossRefGoogle Scholar
Simmonds, L. P. & Williams, J. H. (1989). Population, water use and growth of groundnut maintained on stored water. 2. Transpiration and evaporation from soil. Experimental Agriculture 25:63–75.CrossRefGoogle Scholar
Stewart, J. I. & Hash, C. T. (1982). Impact of weather analysis on agricultural production and planning decisions for the semi-arid areas of Kenya. Journal of Applied Meteorology 21:477–494.Google Scholar
Touber, L. (1983). Soils and vegetation of the Amboseli-Kibwezi area. In Reconnaissance Soil Survey Report N–R6 (Eds. Van Der Pouw, B. J. A. and van Engelen, V. W. P.). Nairobi: Kenya Soil Survey.Google Scholar
Villalobos, F. J. & Fereres, E. (1990). Evaporation measurements beneath corn, cotton and sunflower canopies. Agronomy Journal 82:1153–1159.Google Scholar
Vossen, P. (1990). Algorithm for the simulation of bare sandy soil evaporation and its application for the assessment of planted areas in Botswana. Agricultural and Forest Meteorology 50:173–188.CrossRefGoogle Scholar
Walker, G. K. (1983). Measurement of evaporation from soil beneath crop canopies. Canadian Journal of Soil Science 63:137–141.Google Scholar