IJEP 42(11): 1382-1391 : Vol. 42 Issue. 11 (November 2022)
1. Jamia Mililiaa Islamia, Department of Geography, Faculty of Natural Sciences, New Delhi – 110 025, India
2. Uttrakhand Technical University, Department of Civil Engineering, Dehradun, Uttarakhand – 248 007, India
3. Savitribai Phule Pune University, Department of Geoinformatics, Pune, Maharashtra – 411007, India
4. Graphic Era Hill University, Dehradun, Uttarakhand – 248 002, India
Abstract
Wetlands hold an important part of our environment. Wetlands are submerged or water saturated lands. They are productive life supporting systems, which is of vast socio-economic and ecological importance to human beings, acting as a source of irrigation, recharging groundwater, minimizing flood effects to acting as carbon sequestration. Moreover, wetlands also hold an important part in Indian culture as it is associated with many rituals. However, now wetlands are shrinking, most of them are being encroached on and transformed into other land cover classes. Delhi is also facing a similar situation. Thus, an effort has been made in this paper to study the present status and temporal change in wetland situation in Delhi, India. The presently available wetlands have been demarcated using GIS. While temporal change in wetlands in Delhi has been monitored over a period of 19 years (2000-2019) using satellite images. For that remote sensing and digital image processing techniques including various band rationing were applied. The results have also been validated using accuracy assessment.
Keywords
Wetlands, Recreation, Groundwater recharge, Carbon sequestration, Encroachment
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