ANNOUNCEMENTS
Environmental flow is required to be maintained in rivers in order for the river to sustain itself against growing pollution, but factors like encroachment and storing has worsen the state of river. The present study on River Yamuna of New Delhi stretch try to assess the problem and show importance of environmental flow in the river by doing a decadal Land use land cover and visualizing the impact of urbanization on flood plain and water quality, where water quality is also assess through weighted arithmetic mean water quality index comparing different parameter with CPCB water class. The study also predict BOD using Artificial Neural Network by adjusting weight and biases with different parameter as input and by modifying Streeter-Phelps equation for Yamuna on basis of lab data collected by grab sampling in different parts of the stretch.
The results show that the Land Use has changed and most of area which use to be forest has converted in barren land therefore increasing chances of encroachment that may lead to deterioration of water quality in the river that is already only good to be used for industrial cooling. While giving an ideal condition and some proof where how dissolved oxygen of river can be increased just by controlling multiple drain and letting the river flow from Wazirabad barrage.
Key words: Yamuna, Water Quality, ANN, Environmental flow and LULC.
