Analysis on spatial-temporal changes of mining rights of sand, stone and clay minerals in the Yangtze River Economic Belt

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Jan.2025, Vol.48 No.1: 69-77

DOI: 10.3969/j.issn.1003-5060.2025.01.011

Authors

XIE Zhiguo $ ^{1} $, CHEN Congxi $ ^{1,2} $, REN Shenglian $ ^{1} $,

(1. School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; 2. Information Center of Ministry of Natural Resources, Beijing 100036, China)

Abstract and Keywords

Abstract: Based on the mining rights data of sand, stone and clay minerals in the Yangtze River Economic Belt from 2007 to 2019, this paper analyzed the spatial and temporal evolution characteristics of mining rights of sand, stone and clay minerals in the Yangtze River Economic Belt by using kernel density estimation, standard deviation, ellipse and spatial autocorrelation analysis. On this basis, self-organizing feature map (SOFM) was used to divide sand, stone and clay mineral resource development bases. The results showed that the mining rights of sand, stone and clay minerals in the Yangtze River Economic Belt had obvious regional agglomeration characteristics in space, and the degree of agglomeration was increasing with time. The distribution of mining rights of sand, stone and clay minerals in the Yangtze River Economic Belt generally presented a "southwest to northeast" pattern, and showed a trend of shrinkage and agglomeration. The center of exploration and development of sand, stone and clay minerals showed a trend of migration to the southwest. There was a significant positive spatial autocorrelation in the distribution of mining rights of sand, stone and clay minerals in the Yangtze River Economic Belt. The high-high areas were concentrated in some areas of Guizhou, Yunnan.

Keywords: Yangtze River Economic Belt; sand, stone and clay; mining rights; spatial-temporal change

作者信息

谢治国 $ ^{1} $，陈从喜 $ ^{1,2} $，任升莲 $ ^{1} $，陈义华 $ ^{1} $，李英明 $ ^{1} $，王博韬 $ ^{1} $

(1. 合肥工业大学资源与环境工程学院，安徽合肥 230009；2. 自然资源部信息中心，北京 100036)

摘要和关键词

摘要: 文章基于2007—2019年长江经济带砂石土类矿产采矿权数据,采用核密度估计、标准差椭圆和空间自相关分析,对长江经济带砂石土类矿产采矿权时空格局演变进行分析,在此基础上运用自组织特征映射模型(self-organizing feature map, SOFM)划分了砂石土类矿产资源开发基地。结果表明:长江经济带砂石土类矿产采矿权在空间上具有明显的区域性集聚特征,集聚程度随时间不断增强;长江经济带砂石土类矿产采矿权分布总体呈现“西南—东北”格局,整体呈收缩集聚态势,砂石土类矿产资源勘查开发重心呈现向西南的迁移趋势;长江经济带砂石土类矿产采矿权分布存在显著的空间正相关,高值集聚区集中在贵州、云南等省的部分地区,低值集聚区主要分布于湖北北部和长三角的部分地区。该研究结果可为优化长江经济带砂石土类矿产开发空间布局提供依据和参考。

关键词: 长江经济带；砂石土；采矿权；时空变化

Funding

中国矿产地质志资助项目（DD20190379）；自然资源部预算资助项目（2019-57-0114-01）

合肥工业大学学报(自然科学版)

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