Tag: temporal analysis

Recent Articles- IJGGS

Monitoring & analysis of wastelands and its dynamics using multi-resolution and temporal satellite data in part of Indian state of Bihar

Author(s)– Nathawat M.S et. al.,

ABSTRACT
Voluminous increase in population has created an excessive demand for productive land. At the same time land degradation because of desertification, soil salinity, waterlogging, floods/droughts, excessive soil erosion and unscientific agricultural practices has resulted in the creation of vast stretches of wastelands. This has necessitated adoption of scientific measures for increasing land productivity and bringing more areas under cultivation/forests. In the present study, the multi-temporal satellite images of IRS P6 LISS-III were used to map wastelands dynamics over different seasons. An attempt has also been made to evaluate the potential of high spatial resolution LISS IV (5.8 m) data over moderate spatial resolution LISS-IIIdata (23.5 m) from the Indian Remote Sensing Satellitefor delineation of wastelands in a portion of the Indo-Gangetic plains of northern India. Visual interpretation based on image characteristics and a prior knowledge of the study area was used to delineate wasteland classes. Using LISS III data, 1372.92 and 605.90 hectares of land areas are identified as affected by seasonal and permanent waterlogged respectively, and using LISS IV, 1113.33 and 105.84 hectares of land areas are identified as affected by seasonal and permanent waterlogged respectively. Wasteland classes such as seasonal and permanent waterlogged could be further separated into wasteland classes such as land with dense scrub, land with open scrub, degraded pastures/grazing lands and degraded land under plantation using higher resolution satellite data.

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Recent Articles- IJGGS

Spatio – Temporal Analysis of Land Use in Fringe Area using GIS – a Case Study of Madurai City, Tamil Nadu

Author(s)– Manonmani I.K.

ABSTRACT
Urbanization is one of the most powerful socio-economic components of the modern society. It is a dynamic force since it undergoes considerable spatial and temporal variations. In cities like Madurai this variation is more pronounced in the peripheral areas due to rapid horizontal expansion which has outpaced the vertical expansion of the city. In addition,   the rapid growth of India which has triggered the infrastructure development like modern highways, proliferation of more automobiles etc. facilitates such horizontal expansion of the city and more and more people were found to shift from agricultural to non-agricultural occupation. Hence, it is logical to expect that a proper utilization of land in the fringe areas is basic for effective urban planning. Hence, in the present study an attempt has been made to study the fringe areas; particularly their land use modifications.

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