IAPRS & SIS, Vol.34, Part 7, “Resource and Environmental Monitoring”, Hyderabad, India,2002 
  
Dwellings 
The dwellings around Bicholim mining area are extended upto 
Bicholim River and its beyond in east with altitude of 8-10 MSL, 
Myam-lake in west with altitude of 20-25 MSL. The sloppy of 
eastern portion around ridge has Vishwas Nagar colony, Mulgaon, 
Lumgaon village and surrounding lakes, Bicholim town has 
population of 35000 as per 1991 census. The dwelling status around 
mining area for 97-98 is summarized in Table 5. 
Landuse changes 
The landuse changes for Goan iron ore mining area are due to 
depletion of shallow pit, increase in stripping ratio and increase in 
mechanization. The landuse changes area related to land and water 
are responsible for diminishing of topography, soil erosion along 
unstable slope and sedimentation along surface water (Rao et al., 
2002). The land and water associated landuse changes for Bicholim 
mining area has been monitored through comparison of Aerial 
photograph (February 1978), Landsat TM (January 1987) and their 
quantification is summarized in Table 6. 
Table 6 Quantification of major landuse changes around Bicholim 
iron ore mining area 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Land 
s Landuse Pd S ons Remarks 
a 
Deforestation 
oof Oen mised 10759:| 7759]. 30995]. overironore 
forest ; 
ridge 
2 | Sloppyland | 1759 & -- Only on AP 
3 | OBdump | 350 |3250 | «2900 | UA Pit s zovered 
Iron ore ay 
4 ; 6250 | 7000 | +750 extended for 
quarrying another pit 
Road and Expansion of 
$ dwellings 1250 | 1700] +450 residential area 
Quarry is 
6 Silted pond | 1300 | 1500 | +200 extended for 
another pit 
7 | Muddyland | 400 | 2000 | +1600 Seinen n 
ow lying area 
Confined along 
8 | Paddyfield | 17250 | 600 | -11250 | Bicholim river 
ue to population 
pressure 
  
  
  
The major changes pertaining to land are open mixed vegetation, 
deforestation, and slopy land illustrated through Figure 4 (a). 
Similarly the major changes pertaining to water are muddy land 
paddy field siltation among river and ponds are illustrated through 
Figure 4 (b). 
The comparison of different kinds of aerospace data for Bicholim 
mining area reveals that following major landuse changes: 
æ Natural vegetation as shrub is confined to western portion of 
iron ore ridge in association with latritic capping. 
562 
4 Top of iron ore ridge has land derived landuse feature 
pertaining to quarry activity. 
2 Sedimentation in Mulgaon, Lamgaon and Myam Lake has 
been observed as water derive landuse. 
4 Tailing pond sediment is observed along southern portion of 
iron ore ridge. 
æ  Supari, coconut garden occurs along north of iron ore ridge. 
CONCLUSION 
All the aerospace data provide major geomorphic, geologic, mining, 
drainage and dwelling aspects of Goan iron ore resource. The 
sequential coverage through temporal nature of aerospace data has 
proved a valuable tool for monitoring landuse changes along 
Bicholim mining area. The following are the major concluding 
remarks: 
? Sloppy land and associated quarrying activity towards land 
related landuse are identical over Aerial photograph. 
? Drainage characteristics and geomorphology are identical over 
landsat 1 & 2 imagery. 
? Water related landuses are better delineated over Landsat TM 
IRS 1C data. 
ACKNOWLEDGEMENT 
Authors are grateful to Prof. D. D. Misra; Director, Central Mining 
Research Institute, Dhanbad for providing constant encouragement 
and permission to publish the paper in the Proceeding of 
conference. They are thankful to officers of DMCL Bicholim and 
colleagues at CSRE IIT Powai, Bombay for providing necessary 
assistance. The views expressed in the paper do not reflect the 
views of organization to which they belong. 
REFERENCES 
Reference from journals: 
Bandhopadhaya D, 1996, Exploration perspective for iron ore for 
2000 AD with special reference to NMDC, IM & EJ, 35 (5-6), pp. 
21-25. 
Engineer B. B. 1975, The world of iron ore, IM & EJ, 14 (4), pp. 1-13. 
Mahajan J. K., 1988, Slope stability study in an iron ore mine, IM 
& EJ, 27 (2), pp. 5-11. 
Majumdar A. K., 1965, Mineralogy of the iron and Manganese ores 
of Sanquem District, Goa, Mineral wealth 1(1), pp. 14-20. 
Nair S., 1996, Iron ore mining and environmental degradation, 
Mine Metal & Fuel, 22 (9), pp. 20-30 
Sengupta B. S., 1987, Characteristics of waste rock associated Goan 
Iron ore and their possible uses IM & EJ, 26 (1), pp. 9-18. 
Sinha A. K. 1977, Iron ore industry in Goa, IM & EJ, 16 (10), pp. 
7-10.