Economic Evaluation Of Environmental Impact In Zhao Jialiang Coal Mine

In recent years, along with the rapid development of economic construction, theenvironmental externality problem has also become increasingly prominent, therefore,strengthening economic evaluation of environmental impact in the construction project tosolve the environmental impact of economic activity,is of practical guidance. Economicevaluation of environmental impact is a kind of economy measure in economic, environmentand social benefits which are form environmental protection investment of constructionprojects, it is a effective mean which can internalize environmental cost.Based on the state inboth domestic and overseas in this field, study on economic evaluation of environmentalimpact in the coal construction projects is not a few, but how to effectively internalize the lossof environmental impact, to enable developers to pay attention to environmental cost,at thesame time, provide cost source for the environmental protection, it is the need to make greaterefforts.In this paper, on the basis of the research results at home and abroad, combine cost-benefitanalysis (CBA) and monetized technology, to do economic evaluation of environmentalimpact in coal construction projects. In this process of identification of environmental impact,the index system contains the environmental cost index and environmental benefit index, andaccording to the cost and benefit for different objects, the environmental cost index is dividedinto direct cost index and indirect cost index, the environmental benefit index is divided intodirect and indirect benefit index, which covers the productivity, human health, ecologicalresources and human welfare. Monetize the selected indicators using monetized technologymethod, then based on the CBA for present values, in the end, using CBA to analyze theresults.Through the calculations, total cost of environmental engineering in Zhao Jialiang coalmine is$329.63million, total benefit is$324.42million, so net benefit is a negative value.This is because in the environmental impact of economic evaluation, a large part of the ecological and social benefits can’t be monetized.