A Study on Environmental Impact of Coal Mining in Korba Region of Chhattisgarh State of India Rajesh Kumar Tripathi Abstract--- Land use changes from 1929 to 2009 using satellite images of TM maps data for 1990, 1999 and Google earth imagery for 2009 and survey of India topographic maps. Have been studied The study has generated a land use/ land cover map of Korba district of Chhattisgarh for five year (1929, 1970, 1999, 2005, 2009) point of time in order to detect the changes that have taken place particularly in the residential area, mining area, water bodies, farm lands and forest areas. During a period of 80 years the forest area decreased from 4622.82 km 2 in 1929 to 2241.66 km 2 in 2009. The agriculture area increased during the period 1929-1970 showing that deforested land was converted into agriculture land during this period. From 1970 onwards, mines and barren area increased from nil to 527.72 km 2 in 2009. Residential area showed a drastic increase during the period 1970 -1999 due to migration of people from nearby areas to coal fields in search of livelihood. Keywords---Land use/land covers change, deforestation, urbanization and mining. I. INTRODUCTION AND is the most important natural resource which embodies soil, water and associated flora and fauna involving the total ecosystem. The growing population and human activities are increasing the pressure on the limited land and soil resources for food, energy etc. Comprehensive information on the spatial distribution of the land use/land cover categories and the pattern of their change is a prerequisite for planning, utilization and management of the land resources of the country. Coal mining is a major activity which has a number of detrimental environmental consequences, namely soil erosion, acid-mine drainage etc as a result of abandoned and un- reclaimed mined lands [1, 2 & 4]. The understanding of land use trends of mine area is important to analyse the impact of mining activities on environment and to frame development policies for the region. Satellite remote sensing has emerged as a powerful tool for monitoring of land use/land cover of the area [5 & 6]. With Geographical Information System (GIS), the technique has a distinct advantage over conventional methods/approaches to map and monitor the evolution of degraded areas. Rajesh Kumar Tripathi, at present working as Professor and Head Civil Engineering at, National Institute of Technology Raipur India. ( email: [email protected]) II. METHODOLOGY Flowchart of the broad steps followed in this work for deriving statistics of land use pattern of the area is shown in Fig 1. Fig. 1 Flow diagram of methodology III. RESULT AND DISCUSSIONS Land use map have been developed for year 1929, 1970, 1999, 2005 and 2009. These maps have been presented in Fig 2 to 9. Fig 2 shows that most of the study area is covered by forest. Agriculture occupied about 26.60% of the total study area. Area occupied water body was 2.42%. Residential area was 1.06%. In 1929, there was no coal mine and barren area and maximum land was occupied by forest. L International Conference on Emerging Trends in Computer and Image Processing (ICETCIP'2014) Dec. 15-16, 2014 Pattaya (Thailand) 51
4
Embed
A Study on Environmental Impact of Coal Mining in Korba ...psrcentre.org/images/extraimages/13 1214024.pdf · A Study on Environmental Impact of Coal Mining in Korba Region of Chhattisgarh
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
A Study on Environmental Impact of Coal Mining
in Korba Region of Chhattisgarh State of India
Rajesh Kumar Tripathi
Abstract--- Land use changes from 1929 to 2009 using satellite
images of TM maps data for 1990, 1999 and Google earth imagery for 2009 and survey of India topographic maps. Have been studied The study has generated a land use/ land cover map of Korba district of
Chhattisgarh for five year (1929, 1970, 1999, 2005, 2009) point of time in order to detect the changes that have taken place particularly in the residential area, mining area, water bodies, farm lands and forest areas. During a period of 80 years the forest area decreased from 4622.82 km2 in 1929 to 2241.66 km2 in 2009. The agriculture area increased during the period 1929-1970 showing that deforested land was converted into agriculture land during this period. From 1970 onwards, mines and barren area increased from nil to 527.72 km2 in
2009. Residential area showed a drastic increase during the period 1970 -1999 due to migration of people from nearby areas to coal fields in search of livelihood.