Yamuna Jiye Abhiyaan - 3.12.2007.pdf - PEACE Institute Charitable ...

Yamuna Jiye Abhiyaan - 3.12.2007.pdf - PEACE Institute Charitable ... Yamuna Jiye Abhiyaan - 3.12.2007.pdf - PEACE Institute Charitable ...

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General Guidelines by NEERI, 2005 (Sponsored by the DDA) (page 3.33) Through the results obtained from ground level survey and Hydrodynamic simulations, it has been established that a)The stretch has substantially lost its carrying capacity due to long term silting b)The present width of the river is desirable to maintain for conveying maximum flow of 12,750 cumecs to avoid flooding of adjoining flood plains No residential or industrial facilities requiring permanent structures should be provided on the river bed

World Bank / MOEF / IGIDR Study Valuation of Ecological Functions and Benefits: A case study of Wetland Ecosystems along the Yamuna River corridors of Delhi Region (DU and Institute of Economic Growth, Delhi, 2000) Conclusions: a) Floodplains play a crucial role in ground water recharge to the sandy aquifers present in the study area and connected aquifers in Delhi city. The importance of the water recharge function of the wetlands is amply reflected in the economic value, which is the highest among all the economic estimates of all ecological functions that were assessed. b) Channelisation of river Yamuna in the Delhi stretch will have detrimental effect on the ground water recharge which occurs through the flood plains. c) Even though, wetlands in the Yamuna river corridor are perturbed ecosystems they support a wide variety of flora and fauna as 155 plant species of 27 families and 97 birds species (56% are migratory) have been documented from this area. d) Wetlands ecosystems in the Yamuna river corridor are under continuous threat for conversion to alternate uses due to the pressures of a fast expanding city. e) Benefit-cost Analysis favourably suggests the conservation of flood plain area.

World Bank / MOEF / IGIDR Study<br />

Valuation of Ecological Functions and Benefits: A case study of<br />

Wetland Ecosystems along the <strong>Yamuna</strong> River corridors<br />

of Delhi Region (DU and <strong>Institute</strong> of Economic Growth, Delhi, 2000)<br />

Conclusions:<br />

a) Floodplains play a crucial role in ground water recharge to the sandy aquifers<br />

present in the study area and connected aquifers in Delhi city. The importance<br />

of the water recharge function of the wetlands is amply reflected in the economic<br />

value, which is the highest among all the economic estimates of all ecological<br />

functions that were assessed.<br />

b) Channelisation of river <strong>Yamuna</strong> in the Delhi stretch will have detrimental effect<br />

on the ground water recharge which occurs through the flood plains.<br />

c) Even though, wetlands in the <strong>Yamuna</strong> river corridor are perturbed ecosystems they<br />

support a wide variety of flora and fauna as 155 plant species of 27 families and 97<br />

birds species (56% are migratory) have been documented from this area.<br />

d) Wetlands ecosystems in the <strong>Yamuna</strong> river corridor are under continuous threat for<br />

conversion to alternate uses due to the pressures of a fast expanding city.<br />

e) Benefit-cost Analysis favourably suggests the conservation of flood plain area.

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