Application of GPS and GIS in satellite Remote Sensing assessment of land use and land resource pattern in the limestone mining area and environs at Wadi, Gulbarga district, Karnataka
Results and Discussion
The description of ground features and the positional locations collected by using GPS is shown in Table – 1. The land use/land cover identified in and around 52 Sq. Km. area is shown in Table-3. The dominant class mapped is Agriculture with 2978.05 ha. (56.92 percent) followed by wasteland 1109.91 ha (21.21%), Built-up 386.76
ha (7.39%) and others 696.28 ha.(13.31 %).
The area is well connected with transport network (Table –
2). Minor roads which include Kacha road, Cart track and village
roads extend for 34.76 km length and the metal road which is major
road extends upto 20.32 km. The area is connected by rail with
Gulbarga in the North, Bangalore in the south and Hyderabad in the
east over a length of 15.94 km.
Table - I Surface features and the co-ordinates location identified using gps survey (ACC Cement Plant)
| Sl. No. | Description of Features | Geographic Locations |
| Longitude | Latitude |
| 1. | Administrative Office of ACC plant Cement works) | 76º 59’ 17.6” | 17º 03’ 22.9” |
| 2. | Rail Road Over bridge near Halkatta Village | 76º 59’ 24.2” | 17º 02’ 25.9” |
| 3. | Railway water filtration Plant on Wadi – Kannur Road | 76º 58’ 10.3” | 17º 02’ 54” |
| 4. | Main gate of ACC Lime Stone Mines | 76º 58’ 17.7” | 17º 03’ 27.5” |
| 5. | ACC water pump house at Kagina river | 76º 56’ 49.5” | 17º 04’ 28.4” |
| 6. | Entrance gate of New Wadi Cement Plant | 76º 59’ 37.3” | 17º 03’ 59.3” |
| 7. | Rail Road crossing near Dhangarwadi Village | 76º 59’ 35.5” | 17º 04’ 22.2” |
| 8. | Control Room (New Cement Plant) | 76º 59’ 49.5” | 17º 3’ 49.5” |
| 9. | Electrostatic Precipitator (New Plant) | 76º 58’ 50.1” | 17º 03’ 50.9” |
| 10. | Clinker Silo (New Plant) | 76º 58’ 53.7” | 17º 03’ 52.2” |
| 11. | Load Control room | 76º 58’ 55.4” | 17º 03’ 49.6” |
| 12. | Pre Heater Building | 76º 58’ 44.2” | 17º 03’ 47.7” |
| 13. | Sump Pump House at Sump – 1 | 76º 58’ 13.7” | 17º 03’ 51.1” |
Built-up Land
Major built up land in the area is developed around the mining activity either associated with Wadi limestone mines or Shahabad stone quarry. Wadi, Ingalgi, Rayur, Keri Tanda and Dhangarwadi are the major human settlements in the area. All these settlements are developed along the transportation network and are spread over 386.76 ha or 7.39% of the area.
GPS is used for identifying some of the smaller units of built up features (Figure –2). The locations of Water pump house, Loco shed locations, Water filtration house, Scrap yard and Shale stack are surveyed using GPS are shown in Table – 1
Table – 2
LENGTH WISE DISTRIBUTION OF NETWORK (Rail, Road and River/Streams)
| Sl. No. | CATEGORY | LENGTH(in km) |
| 1. | Railway line | 15.94 |
| 2. | Major Road | 20.32 |
| 3. | Minor Road | 34.76 |
| 4. | Mine Road | 7.53 |
| 5. | River / Stream | 21.17 |
| TOTAL | 99.72 |