Soil Quality Analysis Of Different Fallow Periods In Swidden Cultivation System Of Dhomara Hills, Assam

IJEP 41(4): 456-460 : Vol. 41 Issue. 4 (April 2021)

C. Sharma1* and R. Payeng2

1. Indian Council of Forestry Research and Education (ICFRE), Environment Management Division, Dehradun, India
2. Dimoria College, Department of Environment Management, Khetri, Assam, India

Abstract

Swidden cultivation is practiced by tribes in hilly regions of northeast region of India. It is seen both as source of livelihood and environmental destruction. The study was conducted to assess the soil quality in different fallow periods of swidden cultivation in high elevation areas of Dhomara Hills of Assam. The important soil quality indicators, namely texture, temperature, moisture content, bulk density, pH, organic carbon, total nitrogen, phosphorus and potassium were investigated in 5 stations under different fallow periods and compared with a nearby natural forest vegetation. The study revealed that different fallow periods under the shifting cultivation area differ in soil physico-chemical parameters. Different measures can be adopted for maintaining and restoring the soil fertility for long term success of a shifting cultivation system.

Keywords

Physico-chemical properties, Soil organic carbon, Soil quality, Swidden, fallow period

References

  1. Cramb, R., et al. 2009. Swidden transformation and rural livelihoods in Southeast Asia. Human Ecol.,37: 323–346.
  2. Vliet, N.V., et al. 2012. Trends, drivers and impacts of changes in swidden cultivation in tropical forest-agriculture frontiers: A global assess-ment. Global Env. Change. 22: 418–429.
  3. Ramakrishnan, P. S. 1992. Shifting agriculture and sustainable development: an interdisciplinary study from north-eastern India. In Man and the biosphere series. Pantheon Publications, Park Ridge, New Jersey.
  4. Ranjan, R. and V.P. Upadhyay. 1999. Ecological problems due to shifting cultivation. Current Sci.,77:1246–1250.
  5. Satpathy, K. K., et al. 2003. Developing land resources. Ministry of Rural Development, Government of India, New Delhi.
  6. FAO. 1995. Community forestry case study series 11. Food and Agriculture Organization, Rome, Italy.
  7. Goswami, P. C. 1985. Importance of socio-economic, factors and role of incentives in controlling shifting cultivation in north-east India. Indian Forester. 111:1-11.
  8. Devi, N. L. and B.U. Choudhury. 2013. Soil fertility status in relation to fallow cycles and landuse practices in shifting cultivated areas of Chandel district Manipur, India. J. Agric. Veterinary Sci., 4:1-9.
  9. Lal, R., 1989c. Soil management options in the tropics as alternatives to slash and burn. Soil Tech., 2:253–270.
  10. Liang, L., et al. 2009. Building on traditional shifting cultivation for rotational agroforestry : Experiences from Yunnan. China For. Ecol. Manage., 257:1989–1994.
  11. Karlen, D.L., et al. 1997. Soil quality : a concept, definition and framework for evaluation. Soil Sci. Society American J., 61:4-10.
  12. Christanty, L. 1986. Shifting cultivation and tropical soils: Patterns, problems and possible improvements. In Traditional agriculture in south-east Asia: A human ecology perspective. Ed Gerald G. Marten, Westview Press, Boulder, Colarado. pp 226-229.
  13. Blake, G.R. and Hartge. 1986. Bulk density. In methods of soil analysis. Part I: Physical and mineralogical methods (2nd edn). Ed A. Klute. SSSA Book Series 5. Madison, Wisconsin, U.S.A. pp 66-69.
  14. Walkley, A. and I.A. Black. 1934. An examination of Degtjareff method for determining soil organic matter and a proposed modification of the chronic acid titration method. Soil Sci., 63:29-37.
  15. ICAR. 2005. Handbook of agriculture (3rd edn). Indian Council of Agricultural research, New
    Delhi.
  16. Ahn, P.M. 1979. The optimum length of planned fallows. In Soil research in agroforestry. Ed H.O. Mongi and P.A. Huxley. Report no. ICRAF…001e. International Council for Research in Agroforestry, Nairobi, Kenya. pp 15-40.
  17. Popenoe, H.L. 1960. The influence of shifting cultivation on natural soil constituents in Central America. Ph.D. Thesis. University of Florida, Gainesville, Florida.
  18. Nye, P.H. and D.J. Greenland. 1964. Changes in the SoU after clearing a tropical forest. Plant Soil. 21:101-112.
  19. Nye, P.H. and D.J. Greenland. 1960. The soil under shifting cultivation. Commonwealth Bureau of SoUs, Harpenden, England.