Browsing by Subject "Flood"

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    Analysis of the Flood-induced Livelihood Vulnerability of the Riparian Villages along the Tista River in West Bengal
    (Indian Journal of Spatial Science, 2022-12) Mitra, Rajib; Deepak Kumar, Mandal
    Floods add to the distressed conditions of the poor and vulnerable inhabitants of the Tista floodplain in Sub-Himalayan West Bengal. The riparian villages along the Tista River are well known for frequent and heavy rainstorms and climate-induced catastrophic events, such as flash floods due to unprecedented rains. The primary aim of the study is to determine whether there are any differences between the levels of vulnerability of riparian villages. Five villages were selected to conduct the field survey (sample size: 337, based on Cochran's method) from the Mal and Maynaguri block at the left bank of the Tista River. The livelihood vulnerability index (LVI) was assessed based on eight major components, i.e., socio-demographic characteristics, health status, livelihood techniques, food status, water status, climatic variation, flood, and social security. The study reveals LVI scored highest in Premganj - Majhiali (0.436) and lowest in Chat Rarpur (0.328) village. Because of their location, socio-demographic profile, livelihood options, social safety, water assistance, health support, climatic variance, and flood severity, the Basusuba and Premganj - Majhiali are considered the highest vulnerable. The study also indicated that, due to apathetic or indifferent attitudes, improved access to resources does not always imply that households are adopting resilience strategies.
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    Antioxidative responses of mandarin plants to water stress
    (University of North Bengal, 2013-03) Allay, S.; Lama, R.; Chakraborty, U.; Chakraborty, B.N.
    Citrus reticulata grows in warm climatic conditions. Stresses such as water logging, drought, soil acidity, unbalanced nutrition and pathogenic infestation lead to root injury resulting in citrus tree decline and therefore huge economic losses. In order to determine the effect of flooding and drought on mandarin plants, mandarin plants were subjected to water logging condition in the field and in pots for drought condition. Biochemical and morphological changes induced by water logging and drought conditions were determined. The plants showed slight wilting and leaf dropping by the third day of flooding whereas in drought the leaves curled up, became crisp and later dried out. Marked changes in antioxidative enzymes such as peroxidase, catalase and ascorbate peroxidase was observed during stress in comparison to control plants. Antioxidative activity was seen to be more in the leaves than in the roots. Among the antioxidants carotenoid content showed a significant decrease during the flood stress but increased in drought stress. An increase in ascorbate content was observed during stress in comparison to the control. From this study, we can conclude that water stress causes adjustment of antioxidant balance in mandarin plants.
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    Displacement and livelihood changes in erosion affected char areas in Assam; a socio - economic study of Dhubri District
    (University of North Bengal, 2021) Shahjahan, Ali Sheikh; Dutta, Kanchan,
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    Flood hazards in Jalpaiguri district and its management
    (University of North Bengal, 2011) Roy, Suprakash; Sarkar, Subir