Relief Features of North-East India

Dikshit, K. R.; Dikshit, Jutta K.

doi:10.1007/978-94-007-7055-3_4

Cited by 11 publications

(5 citation statements)

References 1 publication

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“…The NE is largely a mountainous territory with two-thirds of its area occupied by hilly and mountainous terrain with heights ranging from 50 m in Brahmaputra valley to 7000 m above mean sea level in the Himalayan borderland [17]. The states are between 22 • 00 to 29 • 30 N and 89 • 40 to 97 • 25 E, and cover an area of 255,128 Km 2 .…”

Section: Geography Of North-east (Ne) Statesmentioning

confidence: 99%

Malaria in North-East India: Importance and Implications in the Era of Elimination

Sarma¹,

Mohapatra

Bhattacharyya

et al. 2019

Microorganisms

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Worldwide and in India, malaria elimination efforts are being ramped up to eradicate the disease by 2030. Malaria elimination efforts in North-East (NE) India will have a great bearing on the overall efforts to eradicate malaria in the rest of India. The first cases of chloroquine and sulfadoxine-pyrimethamine resistance were reported in NE India, and the source of these drug resistant parasites are most likely from South East Asia (SEA). NE India is the only land route through which the parasites from SEA can enter the Indian mainland. India’s malaria drug policy had to be constantly updated due to the emergence of drug resistant parasites in NE India. Malaria is highly endemic in many parts of NE India, and Plasmodium falciparum is responsible for the majority of the cases. Highly efficient primary vectors and emerging secondary vectors complicate malaria elimination efforts in NE India. Many of the high transmission zones in NE India are tribal belts, and are difficult to access. The review details the malaria epidemiology in seven NE Indian states from 2008 to 2018. In addition, the origin and evolution of resistance to major anti-malarials are discussed. Furthermore, the bionomics of primary vectors and emergence of secondary malaria vectors, and possible strategies to prevent and control malaria in NE are outlined.

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Section: Geography Of North-east (Ne) Statesmentioning

confidence: 99%

Malaria in North-East India: Importance and Implications in the Era of Elimination

Sarma¹,

Mohapatra

Bhattacharyya

et al. 2019

Microorganisms

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“…The density of drainage is a significant signal of the linear scale of the element in stream eroding topography and is specified as the total stream length of all orders and drainage areas and may indicate the channel spacing closeness (Dikshit et al, 2014;Rawat et al, 2016). Drainage density is critical as it leads to mass wasting and slope failure.…”

Section: Drainage Densitymentioning

confidence: 99%

Information Value Model Based Mapping of Updated Spatial and Temporal Landslide Susceptibility: A Case Study from East Sikkim District, India’s Northeastern Himalayas

Rafique,

Joshi

2024

Preprint

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The Indian Himalayan Region (IHR), due to its topography, geography, and active tectonics, a rough mountain zone, is among the most vulnerable zones to the landslip danger. The most cutting-edge and accurate ways for creating a landslip susceptibility model (LSM) are advanced statistical techniques. The goal of the current work was to use advanced statistical techniques to analyse and evaluate the updated landslip susceptibility for East District in the NE Himalayas of Sikkim, India. The spatiotemporal landslip inventory for the years are produced using literature surveys, historical satellite imageries and on-site observations. Slope, aspect, elevation, curvature, plane curvature, profile curvature, topographic wetness index (TWI), lithology, distance to faults, distance to streams, distance to roads, normalised difference vegetation index (NDVI), rainfall, drainage density and land use/ land cover (LULC) are some of the topographic, environmental, geologic, and anthropogenic factors that were included in the spatial database. These LCFs were chosen to study the area's periodic landslip vulnerability. An inventory of 151 landslides from historical published records, field visits and Imagery interpretations, respectively, were used in the experimental design. Information Value Model (IVM), was used to evaluate the vulnerability to landslides as determined by fifteen LCFs. The goal of the study is to reduce the number of fatalities and possible economic harm caused by the region's frequent slope instabilities. It is expected that the application of statistical algorithms would assist relevant authorities and organisations in properly planning for and managing the region's landslip threat.

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“…Northeast India located at the easternmost part of the country, is characterized by its predominantly rural tribal population, comprising 82% of the total population whose livelihoods rely on agriculture and forest-based activities [21,22]. About two-thirds of this region is occupied by hilly and mountainous terrain ranging from 50 meters (Brahmaputra valley) to 7000 meters (Himalayan borderland) above sea level [23]. It comprises eight states and spans an area of approximately 0.26 million square kilometers.…”

Section: Geography Of North-east Indiamentioning

confidence: 99%

Scrub Typhus: Epidemiology, Clinical Presentations, and Diagnostic Approaches

Pandey,

Konyak,

Soni

et al. 2023

Preprint

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Scrub typhus (ST) is one of the most neglected tropical diseases, a leading cause of acute undifferentiated febrile illness in areas of the ‘tsutsugamushi triangle’, diagnosed frequently in South Asian countries. The bacteria Orientia tsutsugamushi is the causative agent of the disease, which enters to human body through the bite of trombiculid mite (Chigger) of the genus Leptotrombidium deliense.The diagnosis of the disease becomes challenging as its early symptoms mimic other febrile illnesses like dengue, influenza, and corona viruses. Lack of rapid, reliable, and cost-effective diagnostic methods further complicates the identification process. Northeast India, a mountainous region with a predominantly rural tribal population, has witnessed a resurgence of scrub typhus cases in recent years. Various ecological factors, including rodent population, habitat characteristics, and climatic conditions, influence its prevalence. Entomological investigations have confirmed the abundance of vector mites, highlighting the importance of understanding their distribution and the probability of transmission of scrub typhus in the region. Proper diagnosis, awareness campaigns, and behavioral interventions are essential for controlling scrub typhus outbreaks and reducing its impact on public health in Northeast India. Further research and community-based studies are necessary to accurately assess the disease burden and implement effective prevention strategies.

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Relief Features of North-East India

Cited by 11 publications

References 1 publication

Malaria in North-East India: Importance and Implications in the Era of Elimination

Malaria in North-East India: Importance and Implications in the Era of Elimination

Information Value Model Based Mapping of Updated Spatial and Temporal Landslide Susceptibility: A Case Study from East Sikkim District, India’s Northeastern Himalayas

Scrub Typhus: Epidemiology, Clinical Presentations, and Diagnostic Approaches

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