Singh, Siddharth and Pandey, Bhanu and Roy, Lal Babu and Shekhar, Sameer and Singh , Ranjeet Kumar (2021) Tree responses to foliar dust deposition and gradient of air pollution around opencast coal mines of Jharia coalfield, India: gas exchange, antioxidative potential and tolerance level. Environmental Science and Pollution Research , 28. pp. 8637-8651.
Full text not available from this repository. (Request a copy)Abstract
Atmospheric pollution by opencast mining activities affects tree species around the mining area. The present study evaluated the responses of five native tree species to air pollution in Jharia coalfield. Sites were selected as closest to farthest from the mining area. Foliar dust deposition and foliar sulphate content affected stomatal conductance, superoxide dismutase activity and ascorbic acid and, thus, increased the susceptibility of sensitive species. Ficus benghalensis and Butea monosperma showed maximum dust deposition, while Adina cordifolia showed minimum deposition. Maximum dust deposition in Ficus benghalensis lowered stomatal conductance and, thus, checked the flux of other acidic gaseous pollutants which led to minimum variation in leaf extract pH. Higher stomatal conductance in Adina cordifolia and Aegle marmelos, on the other hand, facilitated the entry of acidic pollutants and disrupted many biological functions by altering photosynthesis and inducing membrane damage. Low variations in Ficus religiosa, Ficus benghalensis and Butea monosperma with sites and seasons suggest better physiological and morphological adaptations towards pollution load near coal mining areas. Tree species with better adaptation resisted variation in leaf extract pH by effectively metabolising sulphate and, thus, had higher chlorophyll content and relative water content.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Coal mining Atmospheric pollution Dust deposition Leaf extract pH Stomatal conductance |
| Subjects: | Envieronmental Management Group |
| Divisions: | UNSPECIFIED |
| Depositing User: | Mr. B. R. Panduranga |
| Date Deposited: | 10 Mar 2021 11:57 |
| Last Modified: | 10 Mar 2021 11:57 |
| URI: | http://cimfr.csircentral.net/id/eprint/2336 |
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