| Autor: |
Ankita P. Dadhich, Rohit Goyal, Pran N. Dadhich |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Journal of Urban and Environmental Engineering, Vol 11, Iss 1, Pp 79-87 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
1982-3932 |
| Popis: |
The development oriented growth and accelerated industrializati on had been rapidly worsening the environmental quality of urban centers. Jaipur, c apital of Rajasthan India, the 10 th largest metropolitan city of India, is also facing the increas ing pressure on land due to urbanization and de mographic factors. Therefore, in this study an integrated approach of remote sensing and GIS (Geographic Infor mation System) was applied to examine the relationship among spatial variables suc h as impervious area, land consumption rate and air po llutants concentration within a n urban context of Jaipur city. The urban sprawl over the period of five years (20 08–2013) is determined by computing the impervious area or built up area using IRS (In dian Remote Sensing) Resourcesat 2 satellite data for Jaipur urban region. Thereafte r, Land Consumption Rate (LCR) and Land Absorption Coefficient (LAC) were quantifie d to evaluate the impervious area growth in differe nt wards of the Jaipur city. T he temporal variations in gaseous and particulate pollutants were also investigated to as certain the degree of association between air pollutants and impervious area. It has been observed that there is 74.89% increase in impervious area during 2008 to 2013.The z onal distribution of impervious area clearly indicates the increase in number of war ds under Zone 5 (80- 100%) category from 2008 to 2013. The spatial distribution of L CR reveals very high land consumption rate (>0.012) in outskirts of the city ie. Vid hyadhar Nagar, Jhotwara and Jagatpura area. The LAC is zero in wards of Kishanpole area and high (>0.06) for the wards of Civil lines, Jagatpura, and Jhotwara area of the c ity. The urban air quality pattern (2008-2013) results indicate that PM 10 and SPM concentration have the greatest effects on the air environment in comparison to gaseous polluta nts (SO 2 and NO x ). The association between particulate pollution and impervious area i ndicate strong correlation in zone 2 (R 2 = 0.72 for PM 10 and R 2 = 0.63 for SPM) during 2013; however, correlation between PM 10 /SPM ratio and LCR shows significant relation during 2011 and 2013. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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