Dynamic Monitoring of Typical Geographic Mining Conditions of Yanzhou Coal Field Based on High-resolution Remote Sensing Images

Abstract

In order to monitor geographic mining conditions timely and dynamically with high accuracy, this paper took relocation of villages with underground coal resources and farmland with seeper and subsidence as typical geographic mining conditions of Yanzhou coal field in China, extracted monitoring information and made corresponding statistical analysis based on the aerial image in 2009 and GF-2 satellite image in 2015, using object-oriented post-classification change detection method on ENVI software. The results show that from the year 2009 to 2015, Yanzhou Coal field totally moved 11 villages, with a total area of 2.53km2, and the average plaque area was 0.23 km2. The villages with deeper subsidence and perennial seeper had been reclaimed to pond and the area was approximately 0.09km2, while those with shallow subsidence had been reclaimed to farmland and the area was approximately 1.81km2. The total area of farmland with seeper and subsidence was basically unchanged and the area that hadn’t been reclaimed decreased 2.744km2. On the whole, the effects of the reclamation of Yanzhou coal field is remarkable, but there are still 0.63 km2 village and 3.47km2 farmland not yet reclaimed in Xinglongzhuang, Dongtan, Baodian coal mine. Local governments should develop appropriate reclamation plans to improve the efficiency of land use.