Managing Blue And Green Water ? A Case Of Bhopal | 4494
Journal of Ecosystem & Ecography
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Bhopal City was once known for its surface water resource has come under grey that is semi ? critical zone for ground water
development. Urbanization has increased the water and land demand resulting in water resource depletion, cutting of
trees and climate change. Impact of climate change is on both terrestrial eco ? system and atmospheric composition leading to
change in hydro- eco system. The regional consequences of change in hydro-cycle results in loss of vegetation, increase in runoff,
urban flood, change in stream flow and carbon cycle. These changes can be managed by blue and green water. Conservation and
management of blue water can be done through rainwater harvesting. Green water provides large storage for vegetation. Green
water storage and green water fluxes between soil, vegetation and the atmosphere depends largely on land cover and management
(Hoff, 2008). This approach emphasizes on the management of precipitation and green plantation that is hydro- eco cycle for
society and nature. Second aspect of climate change that is change in atmospheric composition can be done by managing sink
through parks and open spaces.
Looking Bhopal, the metro urban habitat, with an eye of blue, green and gray infrastructure, there are three aspects to be
dealt with that is land, water bodies and built form. After studying the Development Plan 2005 and analyzing the chronological
development of the city it is observed that the city can be grouped into developed, semi - developing and open area or buffer zone.
This area are divided into two zones, providing scope for managing the green and blue water as they have different geo-hydro
and physical character and different developmental constraints. Densely water built area has more land mass and less of green
lungs which limit the scope of managing blue water through roof-top rainwater harvesting. Semi- developed area have hillocks
of different altitudes along south ?West and North ?West. It has isolated as well as continuous patches of developed land situated
within planning area, which have been put to various urban uses. The proposals in the form of strategies for semi developed
area are categorized as per the land forms- hill top, hill slope and valley. The natural drainage system is used for ground water
recharge. The surface run off is controlled by plantation along slopes. Buffer zone in context of Bhopal is said to have maximum of
open areas with little built forms. Therefore, development could be planned taking into cognizance of geo-hydrology of the area,
natural resource, drainage pattern and so on. Thus managing the natural resource base is essential for protecting the land, water
and living resources on which human life and development depends.
Presently Purna Sheolikar is a Research Scholar from School of Planning and Architecture, Bhopal. Earlier to this was working as Head of
Department in Bagulla Mukhi College of Architecture and Planning, Bhopal. She completed her master?s from MANIT Bhopal in 2007 and graduation
from MITS Gwalior in 1993
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