| Spatial distribution and its influencing factors of micronutrients in soils of Ruoqiang County, Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2018.04.04 |
| Key Words: micronutrient spatial distribution influencing factors surface soil Ruoqiang County |
| Author Name | Affiliation | | ZENG Yan-yan | College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China
Xinjiang Hydrology and Water Resources Engineering Research Center, Urumqi, Xinjiang 830052, China | | ZHOU Jin-long | College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China
Xinjiang Hydrology and Water Resources Engineering Research Center, Urumqi, Xinjiang 830052, China | | CHEN Yun-fei | College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China
Xinjiang Hydrology and Water Resources Engineering Research Center, Urumqi, Xinjiang 830052, China | | WANG Song-tao | No.2 Hydrogeology and Engineering Geology Party of Xinjiang Bureau of Geology and Mineral Resources Exploration and Development, Changji, Xinjiang 831100, China | | DU Jiang-yan | No.2 Hydrogeology and Engineering Geology Party of Xinjiang Bureau of Geology and Mineral Resources Exploration and Development, Changji, Xinjiang 831100, China | | FAN Wei | College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China
Xinjiang Hydrology and Water Resources Engineering Research Center, Urumqi, Xinjiang 830052, China |
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| Abstract: |
| Based on the analysis of seven micronutrients (Fe, Mn, Zn, Cu, Mo and B) of 143 surface soil samples in Ruoqiang County of Xinjiang, this study used multivariate statistical analysis, geostatistics and ArcGIS to explore the and spatial distribution of these micronutrients. The results showed that: (1) the variation coefficient of Fe, Mn, Zn, Cu, Mo and B varied from 18.2% to 47.4%. (2) The nugget-to-sill ratio of Fe, Mn, Zn, Mo and B were less than 25% with high spatial correlation, indicating Fe, Mn, Zn, Mo and B were influenced by structural factors such as the parent materials. The nugget-to-sill ratio of Cu ranged from 25% to 75% with medium spatial correlation, indicating the influence by the combined effects of artificial random and structural factors. (3) Spatial distribution maps showed the similar spatial distribution characteristics for Fe, Mn, Zn and Cu, with an increasing trend from the surrounding to the center. The spatial distribution pattern of Mo and B was similar, showing an ascending trend from the south to the north. (4) Soil organic matter, pH and parent materials, soil types, land use types also influenced soil micronutrients. |
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