STRONTIUM MOVEMENT INTO PROFILE OF MAURY SILT LOAM SOIL



DOI: https://doi.org/10.25077/js.2.1.28-33.2005

Yulnafatmawita Yulnafatmawita *  (Jurusan Tanah Faperta Unand)

(*) Corresponding Author

Abstract


Groundwater pollution due to chemcal application in agriculture activities has caused much public concerns. Based on the researches having been conducted, it was resulted that chemical leaching in soil frequently showed spatial pattern. Based on the fact, a field research was conducted in Maury silt loam soil (fine, mesic, mixed, Typic Paleudalf) to evaluate spatial variety of Sr movement into and below rooting zone. Chemical material SrCl2.6H2O was evenly distributed on soil surfacein a 18 x18 m plot. Soil samples were taken 4 times (after receiving rainfall 166, 3, 586, and 1085 mm) in 54 locations within the plot. At each sampling undisturbed soil was taken from surface until 100 cm depth, then the Sr element was analyzed from each 10 cm depth. The results showed that there was no spatial pattern found for Sr movement within a 100-cm soil depth in each sampling date. Therefore, based on the analysis of variance, it was about 95% of Sr2+ found on 0-20 cm soil depth even though after receiving 1085 mm rainfall.

Key Words: groundwater pollution, agricultural chemicals, spatial structure
Copyright (c)


Full Text:

PDF

References


Cline, J.F. and Caldwell, L.L. 1984. Movement of radiostrontium in the soil profile in an arid climate. Health Phys. 46:1136-1138.

Folorunso, O.A. and Rolston, D.E. 1984. Spatial variability of field-measure denitrification gas fluxes. Soil Sci. Soc. Am. J. 48:1214-1219.

GS+, Geosatistics for the biological sciences. 1990. Program Manual Geostatistics software, version 1.01. Gamma Design Inc., P.O. Box 2.01, 457 East Bridge Street, Plainwell, MI 49080.

Horr, C.A. 1963. A survey of analytical methods for the determination of strontium in natural water. In Chemistry of Strontium in Natural Water. U.S. Geological Survey. U.S. Govern. Print. Off., Washington.

Jensen, D.J. and Radke, C.J. 1988. Cesium and strontium diffusion through sodium montmorillonite at elevated temperature. J. Soil Sci. 39:53-64.

Lee, L.K. and Nielson, E.G. 1987. The extent and cost of groundwater contamination by agriculture. J. Soil Water Conserv. Jul-Aug.:243-248

Logan, T.J. 1990. Sustainable agriculture and water quality. In Sustainable Agricultural Systems, edited by C.A. Edwards, R.Lal, P.Madden, R.H.Miller, and G.House. Soil water Conserv. Soc. Ankeny, Iowa, p 582-613.

Luxmoore, R.J., Spalding, B.P., and Munro, I.M. 1981. Areal variation and chemical modification of weathered shale infiltration characteristics. Soil Sci. Soc. Am. J. 45:687-691.

Moutonnet, P., Pluyette, E., El Mourabit, N., and Couchat, P. 1988. Measuring the spatial variability of soil hydraulic conductivity using an automated neutron moisture gauge. Soil Sci. Soc. Am. J. 52:1521-1526

Schulz, R.K. 1965. Soil chemistry of radionuclides. Health Phys. 11:1317-1324


StatisticsArticle Metrics

This article has been read : 217 times
PDF file viewed/downloaded : 3 times

Copyright (c)



ISSN: 2356-0835