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An Appraisal of Drought Dynamics in Bundelkhand Region (India) using Geo-spatial Techniques

KrishiKosh

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Title An Appraisal of Drought Dynamics in Bundelkhand Region (India) using Geo-spatial Techniques
 
Creator Kundu, Arnab
 
Contributor Denis, Prof. Derrick Mario
 
Subject null
 
Description An Appraisal of Drought Dynamics in Bundelkhand Region (India) using
Geo-spatial Techniques
ABSTRACT
Drought is a multifaceted concern dependent upon rainfall, temperature, evapotranspiration
available soil moisture content and groundwater. With the advent of space
technology, spatio-temporal studies have become more relevant in dry-land researches.
The hyper-temporal SPOT-VGT NDVI data were used in this study to quantify the
degree and trend of change in vegetation cover. Generally, there is a lag response of
vegetation to the amount of rainfall received by an area. Thus, rainfall-NDVI interrelationship
was taken as a surrogated measure to estimate the areas under natural and
anthropogenic vegetation change. The first objective of the study was to identify the
spatial and temporal dynamics of agricultural, meteorological and hydrological drought
and their inter-relationships, mapping and assessment using geo-informatics. Second
objective of the study was to assess the onset, duration, frequency and extent of
agricultural drought using satellite based data. The areas affected by drought have shown
through the spatio-temporal extent of drought. The spatial extent of drought indicates the
extent of area affected by drought and its spatial pattern. It was estimated through longterm
SPOT-VGT NDVI datasets and Vegetation Condition Index (VCI). The third
objective of the study was to assess the long-term trend of vegetation in comparison with
rainfall over the Bundelkhand region (India). The fluctuation of NDVI value is
interrelated with the production of crops and natural vegetation growth. Finally, fourth
objective of this research focused on assessing the socio-economic risk of drought using
multi-criteria analysis and GIS. In this study, mainly census based parameters have taken
for drought risk to the society. Besides, human responses towards drought risk have
shown based on pair-wise comparison and vulnerability analysis. The district-wise
vulnerability and risk map are able to identify the hierarchy based drought affected
region. So, as per the study these districts should be taken as a natural threat of drought
towards the society. The GIS based study with AHP and pair-wise comparison has
successfully produced an excellent output for the above study.
 
Date 2018-04-25T05:09:36Z
2018-04-25T05:09:36Z
2018
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/5810044540
 
Language en
 
Format application/pdf
 
Publisher Faculty of Engineering and Technology Sam Higginbottom University of Agriculture, Technology and Sciences Allahabad-211007 Uttar Pradesh, India 2018