The Suitability Survey And Evaluation Of The Reuse Of The Mining Wasteland In Liaoning Province

The development of the society needs a lot of mineral products. Mining wasteland is the products with the development of the mineral resources. The presence of a lot of mining wasteland caused a series of ecological, social and economic problems, which affected the sustainable development of the mining area seriously.In this paper, we take through investigation of a large amount of mineral resources in Liaoning province to collect the information, including metal, coal and non-metallic mineral, etc. Though the on-the-spot-investigation of mining wasteland pilot cities in Liaoning province, using the landscape ecology, restoration ecology, sustainable development theory. The research results are as follows:(1) In this paper, the combination of the existing research results, we clear about the industrial and mining land survey purposes, survey principle and survey content; Using the GIS technology and field survey two Angle of view to ensure the reliability of mining abandoned land survey. In collecting and data of each city in Liaoning province at the same time, focus on the field investigation of some typical mining lands, to understand the current mining abandoned land in Liaoning province mineral types, quantity and reclamation reuse.(2) Reusing the typical industrial and mining land reclamation suitability evaluation, slope and topography, soil conditions, and from among the three categories of hydrological conditions, which is suitable for different minerals and different and suitable for selecting the evaluation factors, build up the industrial and mining land reuse suitability evaluation system, on this basis, using the analytic hierarchy process (AHP) to determine the weight of each index, and finally is obtained by computing the suitability evaluation results of all the evaluation units.(3) Through the typical mining abandoned land suitability evaluation of the results of the analysis, identify the different minerals of mining abandoned land reclamation for different land use types, the proportion of the results in the whole promotion of Liaoning province, at least can understand the province’s industrial and mining wasteland reclamation for the proportion of arable land. And on the basis of the result of the suitability of mining abandoned land reclamation reuse work put forward reasonable suggestions.This research mainly draws the following conclusion:(1) There are three kinds of main mineral in Liaoning province:metal, coal mines and the metal. The metal mainly includes:iron ore, manganese, copper, aluminum, and gold; Non-metallic mineral mainly include:diamond, magnesite, talc ore, jade ore, boron ore, oil and gas; we separate coal as a study due to the quantity.(2) The mining lands in Liaoning province is about 167053.79 hm2,and the mining wasteland in cities varies from 1.8% to 2.5%. According to the investigation and statistics, there are 3565.39 hm2 mining wasteland in Liaoning province, accounted for 2.1% of the province’s mining land.(3) Based on different minerals typical land suitability evaluation in Liaoning province, We know that the reclamation proportion of the metal is 91.97%, which can be reclaimed into farmland is 24.16%; The coal mine land reclamation proportion is 85.18%, which can be reclaimed into farmland,35.17%. The non-metallic mineral reclamation proportion is 94.93%, which can be reclaimed into 94.93% of farmland.