Natural chemical degradation of soils in the Indian semi-arid tropics and remedial measures
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Dilip Kumar Pal, Ranjan Bhattacharyya, Kanwar Lal Sahrawat, Suhas Wani. (10/5/2016). Natural chemical degradation of soils in the Indian semi-arid tropics and remedial measures. Current Science, 110(9), pp. 1675-1682.
Abstract
Most published research on soil degradation in general
emphasizes the role of anthropogenic factors.
Even among the natural soil degradation processes the
regressive pedogenic processes that lead to the formation
of CaCO3 and concomitant development of subsoil
sodicity and the adverse effects of palygorskite on
the soils of the semi-arid tropics (SAT), have received
little global attention as the natural processes of
chemical degradation of soils. Studies in India during
the last two decades, however, have demonstrated the
important role of regressive pedogenic processes in
natural degradation of major soil types in the Indian
SAT regions. The present article summarizes the research
on natural degradation of soils in the Indian
SAT. The management practices to reclaim the degraded
soils are also discussed with examples
