Different Soil Factors Influencing Dehydrogenase Activity in Mine Degraded Lands—State-of-Art Review
2021
Bandyopadhyay, Sneha | Maiti, Subodh Kumar
Soil enzymes quickly respond to the disturbances caused in environmental pollution originating from human activities. Computation of enzyme activities has been used as indexes of microbial functionality, soil fertilization, biochemical cycling of numerous components in soil, extent of contamination, and ecosystem succession. Soil enzyme activity is one of the soil biological properties used as an indicator of soil quality due to their interrelationship to soil biology, being sensitive, integrative, ease to measure, “biological fingerprints” of previous soil management, indicator of biological symmetry, fertility, and changes in biological status of soil due to pollution. Dehydrogenase (DHG) enzymes are one of the most important components of soil enzymatic assay, as they determine the correct order of all biochemical pathways in soil biogeochemical cycles. While dehydrogenase activity (DHA) is calculated utilizing the procedures INT and TTC substrate in soil at the same time, a number of authors expressed their views about the unsatisfactory results when TTC has applied as substrate. Most of the researchers have applied incubation periods of 24 h at 37 °C, but some are modified it to 6 h 37 °C with either glucose or yeast extract as electron-donating substrate. Generally, in coal mine spoil, DHG functionality seems to lower, could be owing to the damage microflora, lack of soil organic matter. Measurement of DHA is frequently used as an extent of any disturbance owing to fertilizers, heavy metals, or other soil amendment (for management) practices, or, instantaneously degree of microbial functionality of soil.
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