Soil quality assessment and GIS based mapping in post-flood soils of kole wetlands of Kerala
Keywords:
flood, kole land, minimum data set, soil quality, wetlands.Abstract
Kerala state experienced a devastating flood in 2018, causing significant damage to the agricultural sector. Great damage resulted in the soil environment of kole lands (AEU 6). The georeferenced soil samples collected from post-flood soils of kole lands were analysed for different physical, chemical, and biological quality indicators. A minimum data set was formulated using principal component analysis (PCA), and the weighted additive method found the soil quality index. Among the 24 parameters studied, nine parameters, viz., particle density, porosity, exchangeable acidity, available Ca, S, N, Fe, Zn, and B, formed the minimum data set for soil quality index assessment and it varied from 0.28 to 0.78. The relative soil quality index varied from 25.93 to 72.22 per cent. The organic carbon had been shifted towards medium to high from low to medium after the flood. The high content of available phosphorus before flood had changed to medium to high after flood. Among the secondary nutrients, deficiency of available magnesium was severe in kole lands. Available boron was deficient in all the soil samples. Thematic maps were prepared using ArcGIS package to provide ready information about soil fertility status, which could serve as a decision making tool for cultivation of rice.References
Amalu, U.C. and Okon, P.B. 2013. Nitrolimegation: a nutrient-in-water resource for sustainable crop production on ‘acid sands’ of southern Nigeria. J. Trop. Agric. Food Environ. Ext., 10(3): 1-12.
Andrews, S.S., Karlen, D.L., and Mitchell, J.P. 2002. A comparison of soil quality indexing methods for vegetable production systems in Northern California. Agric. Ecosyst., 90: 25-45.
Bray, R.H. and Kurtz, L.T. 1945. Determination of total, organic and available forms of phosphorus in soils. Soil Sci., 59: 39-45.
Brevik, E.C., Fenton, T. E., and Lazari, A. 2006. Soil electrical conductivity as a function of soil water content and implications for soil mapping. Precis. Agric., 7: 393-404.
Djodjic, F., Borling, K., and Bergstrom, L. 2004. Phosphorus leaching in relation to soil type and soil phosphorus content. J. Environ. Qual., 33(2): 678-684.
George, B.S., Ashique, T.K., and Binitha, N.K. 2017. Assessment of microbial properties of Pokkali soils in Kerala, India. Inter. J. Current Microbiol. Appl. Sci., 6(12): 1964-1967.
Gupta, V.C. 1972. Effects of boron and lime on boron concentration and growth of forage legumes under greenhouse conditions. Commun. Soil Sci. Plant Anal., 3: 355-365.
Hendershot, W.H. and Duquette, M. 1986. A simple barium chloride method for determining cation exchange capacity and exchangeable cations. Soil Sci. Soc. Am. J., 50: 605-608.
Jackson, M.L. 1958. Soil Chemical Analysis. Prentice Hall, Englewood Cliffs, NJ, p341.
Jenkinson, D.S. and Powlson, D.S. 1976. The effects of biocidal treatments on metabolism in soil I. Fumigation with chloroform. Soil Biol. Biochem., 8: 167-177.
Johnkutty, I. and Venugopal, V.K. 1993. Kole Lands of Kerala. Kerala Agricultural University,Vellanikkara,Thrissur, 77p.
Karlen, D.L. and Stott, D.E. 1994. A framework for evaluating physical and chemical indicators of soil quality. In: Doran, J. W., Coleman, D. C., Bezdicek, D. F., and Stewart, B. A.(eds), Defining Soil Quality for a Sustainable Environment. SSSA, Madison, WI, pp.53-72.
Kay, B.D. and Bygaart, A.J.V. 2002. Conservation tillage and depth stratification of porosity and soil organic matter. Soil Tillage Res., 66: 107-118.
Keen, B.A. and Raczkowski, H. 1921. The relation between the clay content and certain physical properties of a soil. J. Agric. Sci., 11(4): 441-449.
Klein, D.A., Loh, T.C., and Goulding, R.L. 1971. A rapid procedure to evaluate dehydrogenase activity of soils low in organic matter. Soil Biol. Biochem., 3: 385-387.
McLean, E. O. 1965. Aluminum. In: Black, C. A. (ed.), Methods of soil analysis: Part 2. Chemical methods. Madison, pp. 978-998.
NBSS & LUP [National Bureau of Soil Survey and Land Use Planning]. 2012. Soil Resource Mapping. https://www.nbsslup.in/new-delhi.html.
Rajalekshmi, K. 2018. Carbon sequestration and soil health under different organic sources in wetland rice. Ph. D thesis, Kerala Agricultural University, Thrissur. 216p.
Raiesi, F. 2017. A minimum data set and soil quality index to quantify the effect of land use conversion on soil quality and degradation in native rangelands of upland arid and semiarid regions. Ecol. Indicators, 75: 307-320.
Ruhlmann, J., Korschens, M., and Graefe, J. 2006. A new approach to calculate the particle density of soils considering properties of the soil organic matter and the mineral matrix. Geoderma, 130: 272-283.
Sims, J.T. and Johnson, G.V. 1991. Micronutrient soil tests. In: Mortvedt, J. J., Cox, F. R., Shuman, L. M., and Welch R. M. (eds), Micronutrients in Agriculture: Second Edition. Soil Science Society of America, Madison, Wisconsin, USA, pp. 427-476.
Subbiah, B.V. and Asija, G.L. 1956. A rapid procedure for the determination of available nitrogen in soil. Curr. Sci., 25: 259-260.
Tabatabai, M.A. 1996. Sulfur. In: Sparks, D.L. (ed.), Methods of Soil Analysis. Part 3. Chemical Methods. Soil Science Society of America Book Series No. 5. SoilScience Society of America and American Society of Agronomy, Madison,Wisconsin, USA, pp. 921–960.
Vishnu, C.L., Sajinkumar, K.S., Oommen, T., Coffman, R.A., Thrivikramji, K.P., Rani, V.R., and Keerthy, S. 2019. Satellite-based assessment of the August 2018 flood in parts of Kerala, India. Geomatics Nat. Hazards Risk, 10(1): 758-767.
Venugopal, V.K., Nair, K.M., Rajasekharan, P., Sasidharan Nair, A.N. 2018. Soil Fertility Handbook. Department of agriculture development and farmers’ welfare, Government of Kerala, 256p.
Walkley, A. and Black, T.A. 1934. An examination of the Degt. Jarett method for determination of soil organic matter and a proposed modification of cromic acid titration. Soil Sci., 37: 29-38.
Wu, H., Zeng, G., Liang, J., Zhang, J., Cai, Q., Huang, L., Li, X., Zhu, H., Hu, C., and Shen, S. 2013. Changes of soil microbial biomass and bacterial community structure in Dongting Lake: impacts of 50,000 dams of Yangtze River. Ecol. Eng., 57: 72-78.
Yoder, R.E. 1936. A direct method of aggregate analysis of soils and a study of the physical nature of erosion losses. J. Am. Soc. Agron., 28: 337-351.
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