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of flooding is greatly reduced. In case of rocky terrain surface where no such plants
are available, we often see reverse condition. Planting of vegetation along both sides
of the river bank can also be considered as non-engineering measures for protecting
river bank erosion as well as flood-like situation within the region. Vegetation normally holds the water in soil in their root zone and prevents scouring erosion and
sloughing of river banks. We have demarcated buffer zone towards both side of the
river bank up to 1 km after considering the surrounding environment. Apart from the
restricted zone of human intervention, rest of the buffer region may be considered
for planting of vegetation (Fig. 13.13). Indigenous plants like mango (Mangifera
indica), guava (Acca sellowiana), jamun/blackberry (Syzygium cumini), sisul
(Dalbergia sissoo), kul (Ziziphus jujube) and neem (Azadirachta indica) may be
considered as sui` vegetation keeping in the view of economy, erosion and inundation within the region for minimizing the magnitude of the flood-like situation.
13.5 Conclusion
Flood is a natural event in Ketugram-I and II blocks during the monsoon season.
Frequent flooding affects the livelihood pattern of the local people. Most of the
areas of these blocks are highly flood affected. River water crosses danger level very
frequently during the monsoon. Thousands of people, their property, crops and
infrastructure all of these are vulnerable to flood. Flood frequency analysis shows
that there is a possibility of extreme flood in the future. Proper monitoring and management of flood are essential to reduce the potential damages. As flood is a natural
event, we cannot eradicate it completely, but we can minimize the negative impact
to a certain amount with better management. In this case study what we have
observed during the field visit is that the people are very happy to reside in that
region whatever may be the situations. Therefore, ‘living with flood’ may be the
better solution to them. Application of GIS is very important for the management of
this type of events. Inundation map helps us to identify the vulnerable areas, which
is important for preparedness and management of the situation. It is also favourable
to take certain measures like planting of vegetation along both sides of the channel,
channel improvement by giving sufficient space to the river for its natural activity
along with dredging of channel to minimize the magnitude of flood for the longterm benefit of the society. Past experiences show that embankment is for the immediate solution not for the sake of long term. Timely management is still an issue in
this part of the world. So there is an urgent need for the formulation and
implementation of effective flood management policies to reduce the damages.
Compliance with Ethical Standards
On behalf of all authors, the corresponding author states that there is no conflict of
interest.
13 Flood Frequency Analysis and Its Management in Selected Part of Bardham…
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