Analysis on dynamical change of landscape pattern in Tangshan mining subsidence area based on RS and GIS

Based on RS and GIS, took 1993, 2000, 2007 and 2009 TM images as the data source, classicarea (CA), pieces of Percent of landscape (PLAND), plaque number (NP), patch density (PD), largest patch index (LPI), shape index (LSI), fractal dimension (PAFRAC) were used to analyze the change of landscape from the types of Tangshan coal mining subsidence landscape. Landscape characteristics and dynamics change were studied. Research results show that there is a big change in Tangshan coal mining subsidence in the last 15 years, construction land, water bodies, woodland regional landscape pattern instead of the landscape of construction land and farmland. The change is caused by mining production and land reclamation activities mainly. This result can indicate the planning of Tangshan coal mining subsidence reclamation.