The Evaluation Of Mineral Resources Development Intensity In Jiangxi Province Based On Remote Sensing Technology

Through the evaluation and analysis of mineral resources development intensity,it can not only reflect a series of changes of regional mineral resources development in a scientific and comprehensive way within the selected time range,but also serve as an important information source and reference basis for the analysis of follow-up development trend and development direction prediction of regional mineral resources development.This paper,taking jiangxi province as the study area,in the study area in 2017 and 2014,remote sensing image as the foundation,determine the scientific and reasonable evaluation factor,and information extraction,data after determine the optimal evaluation research area unit,using three different methods for mineral resources exploitation strength in the study area,according to the result of evaluation research,get the most suitable for jiangxi province mineral resources development strength evaluation method,comprehensive analysis was carried on.The main achievements are as follows:(1)through consulting a large number of references,this paper combined with the actual and the related technical standard,analyzes the influential elements of the mineral resources development and the intensity factor selection based on predecessors in the resources development,summed up the most suitable for the mineral resources development intensity evaluation factor of work area,divided into four major categories,a total of eleven evaluation factors.The data information of each evaluation factor is extracted by remote sensing method.(2)in this paper,the mineral resource development intensity under different evaluation units is evaluated,and then the internal homogeneity and inter-unit heterogeneity of each evaluation unit is calculated and analyzed,so as to determine the most suitable evaluation unit size for the research area.(3)on the basis of referring to the previous relevant evaluation methods,this paper selected three different evaluation methods: cv-space distance method,ahp-topsis method and BP neural network method to carry out the development intensity evaluation by comprehensively considering the weight calculation and research practice.And through the data comparison of the evaluation results obtained by the three methods and the analysis of the actual development situation,the evaluation results obtained by the cv-space distance method have the highest accuracy,which is the most suitable evaluation method for the study area.(4)based on the comprehensive analysis of the evaluation results obtained by using thecv-space distance method,this paper concludes that during 2014-2017,the development intensity of mineral resources in jiangxi province as a whole shows a downward trend.The development intensity of the old mineral development concentration area declines,while the new mineral resource development concentration area with a small area appears.Based on the evaluation results,some Suggestions are put forward for the rational exploitation of mineral resources in the study area.