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- Title
弥河流域土壤中钴、钼、硒、锌空间分布及来源分析.
- Authors
姜冰; 邢孟涵; 孙增兵; 杨丽原
- Abstract
In order to study the spatial distribution and sources of cobalt ( Co), molybdenum ( Mo), selenium ( Se) and zinc ( Zn) in the surface soil of the Mihe River Basin, 48 samples were collected from the surface soil of different land types in the Mihe River Basin, four trace elements content and other soil physical and chemical indexes were determined, and mathematical methods such as spatial interpolation and positive definite matrix factor analysis ( PMF) were used to analyze the data. The results showed that Co, Mo, Se and Zn all had different degrees of enrichment in the study area, with the highest enrichment in cultivated land. The high concentration areas of Co and Mo were mainly distributed in the junction of Linqu-Qingzhou-Changle, the high concentration areas of Se were mainly distributed in the west of the study area, and the high concentration areas of Zn were mainly distributed in the southwest of the study area. The content of Co in soil was mainly affected by iron-manganese oxide and soil texture, Mo was mainly affected by iron-manganese oxide, Se was mainly affected by N, P and organic matter, and Zn was mainly affected by N, P, organic matter and soil texture. PMF model source analysis shows that the main sources of Co, Mo, Se and Zn in the study area are natural sources, agricultural sources and transportation-industrial mixed sources, accounting for 44. 6%, 35. 7% and 19. 7%, respectively, of which Co and Se are mainly derived from natural sources (48. 7% and 51. 3% ), while Mo and Zn are balanced from natural sources, agricultural sources and transportation-industrial mixed sources.
- Publication
Science Technology & Engineering, 2023, Vol 23, Issue 35, p15312
- ISSN
1671-1815
- Publication type
Article