Study on cumulative effective of mining-induced eco-environment with ecological field theory

The cumulative effective of mining-induced eco-environment was anzlyzed based on ecological field theory in the paper. Ecological field theory and relevant concepts were first presented. The causal relationship between different niche level and mining subsidence was taken into account. The sensitive character of niche element for the cumulative effective was also considered. A niche element of system was then constructed. The research areas were divided into different types of eco-unit. Different phase remote sensing images were thus classified. The results were used to calculate the niche value. The quantification and calculation method of such niche elements as land use and its coverage indices and soil erosion intensity were mainly introduced in the paper. The determination of mining-induced eco-potential and the approach of cumulative effective analysis were described Lu-an subsidence areas were finally selected as the case area. The mining-induced cumulative effective laws of the case area were acquired.