Vol. 7, Issue 3 (2019)
Impact of land degradation on soil productivity, soil fauna, bio-degradation process and environment
Author(s): SK Yadav, AK Yadav, KP Raverkar, Ramesh Chandra and Navneet Pareek
Abstract: Land degradation is a major issue of this time because of its adverse impact on soil productivity, human and animal health, soil and water quality on local, regional and global scale. Out of 329 million ha of total geographical area in India, the total degraded area accounts for 120.7 million ha, of which 73.3 million ha is degraded by water erosion, 12.4 million ha by wind erosion, 6.73 million ha by salinity and alkalinity and 25 million ha by soil acidity. Land degradation is of mainly three types such as physical, chemical and biological. Physical degradation refers to the deterioration of the physical properties of soil. Nutrient depletion is a major cause of chemical degradation while reduction in soil organic matter content, decline in biomass carbon and decrease in activity and diversity of soil fauna are ramification of biological degradation. Thus land degradation has both on site and off site effect on soil productivity. Soil erosion has short-term effect on decline in crop yield and agronomic production and long-term effect decline in soil quality and productivity and nutrient use efficiency of crop. Land degradation decreases soil productivity because of adverse impact on soil physical, chemical and biological properties. Removal of different salts, nutrients, pesticides, herbicides, insecticides through run-off and leaching process and deposition of sediments constitutes environmental pollution.
Pages: 4380-4384 | 1244 Views 925 Downloads
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How to cite this article:
SK Yadav, AK Yadav, KP Raverkar, Ramesh Chandra, Navneet Pareek. Impact of land degradation on soil productivity, soil fauna, bio-degradation process and environment. Int J Chem Stud 2019;7(3):4380-4384.
