Study On The Establishment Of The Assessment System Of The Mining Areas In Land Reclamation Quality And Benefit

This dissertation takes the reclaimed regions from MA Jiata Mining Area as study object, through field investigation, observation on the spot and lab analysis, from soil physical and chemical properties, plant biomass and abundance and so on, to system research MA Jiata mining area before reclaimed regions and after reclaimed regions, and using the principal component analysis method (PAC) to comprehensive evaluated the MA Jiata reclaimed regions for the fist time, in order to offer scientific basis for the utilization and ecological restoration of open mining.The result shows as following:(1) MA Jiata reclaimed regions, contain the amount of N slightly high in original shape soil, however, the amount of P, K slightly low in original shape soil.This is because reclamation area artificial administration and fertilization, and then after reclamation plant biomass and abundance is above before reclamation.(2) Comprehensive evaluation using the principal component analysis method to comprehensive evaluated the MA Jiata reclamation area soil quality for the fist time.the result shows that: soil of quality in reclamation area is above undisturbed soil, but not up to the agricultural aroduction and forestry production level. Strengthening management and improves of the land productivity is objectives.(3) by the means of mathematical measures,building on the estimation for liner regression model with mathematical of MA Jiata reclamation area between of Soil Nutrient Content.