| Da Shi Qiao is famous for its large reserve of magnesite, and with thedevelopment of magnesium enterprise, the dust of magnesium polluted thesurrounded environment, and changed the component of the soil, water and air, alsothe land use was effected too. Nan Lou economic develop zone is a minging leadingzone, inside there is derelict land, sink land and discarded stalls, all these lead to thewaste of land, and restriced the development of this zone. Samples around the minewas collected and analyzed for grain size and pH value, and discussed the affection ofNan Lou mine to the surroundings according to the results. Conclusions are drownfrom three parts, the affection to farm land, typical enterprise place selection andresident land, main conclusions are as follows:1. magnesite mining coursed the raiseof pH value, decrease of the ability of soil self purification, and accellorate the moveof metal element, destruct the balance of the soil nutrition, and affect the fertility ofthe soil.2. The land selection of farm land, typical enterprise, residental land are allaffected around the mine. The product ability of farm land are affected too, there outto take work as reclaim of land to recover more farm land, and those can’t bereclaimed to farm land should be changed into storage land, forest or grass land. Theouter part could recommend equipment manufacture enterprise, machine manufactureenterprise and cloth manufacture enterprise, and could only be used to as storage land,grass land and public accommodation land. The residential land should move ifaffected by heavy pollution, and strength the protection to magnesium dust for the lesspolluted area. |