Evaluation and Prediction of Landscape Ecological Security Based on a CA-Markov Model in Overlapped Area of Crop and Coal Production

Overlapped areas of crop and coal production are responsible for national food security mineral resource supply. However, long-term mining urban rural construction have continuously impacted the structure functions original agricultural landscape ecosystem in area brought serious ecological problems. On basis results remote sensing image classification Zhaogu area, this study explores spatio-temporal variation characteristics pattern evolution predicts status 2029. Research show that manifests obvious stage characteristics: from 2004 to 2014, developed direction fragmentation, irregularity, heterogeneity, low connectivity; after showed continuity, regularization, high connectivity trends. By comparing 2019, a temporal change characteristic first deteriorating then gradually improving can be observed. analyzing changes distribution on spatial scale, it found proportion unsafe is significantly reduced 2019 due influence land remediation reclamation. constructing CA-Markov prediction model with both quantitative advantages, degree fragmentation will reduced, enhanced between The shape patches tends regular, heterogeneity enhanced. Overall, situation continue improve. could provide reference protection related reclamation planning mine area.