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Soil environmental quality in Nanling commodity grain base based on equal intercept transformation radar chart.
Hai-Biao Dong1,2, Guang-Hui Zhang3,4, Ming-Jiang Yan3,4
1The Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, 050000, China. 15143081086@163.com.
Scientific Reports
|May 18, 2021
Summary
This study introduces a new radar chart method for assessing soil quality in the Nanling grain base. Results show varying soil grades, with heavy metals like cadmium (Cd) being key environmental concerns.
Area of Science:
- Environmental Science
- Soil Science
- Data Visualization
Background:
- Soil environmental quality is crucial for agricultural productivity.
- Conventional radar charts have limitations in data representation and indicator order dependency.
- The Nanling commodity grain base requires robust soil quality assessment methods.
Purpose of the Study:
- To introduce the equal intercept transformation radar chart for soil environmental quality assessment.
- To overcome the limitations of conventional radar charts in soil quality evaluation.
- To analyze and present soil environmental quality data for the Nanling commodity grain base.
Main Methods:
- Development and application of the equal intercept transformation radar chart.
- Translating numerical soil quality data into a graphical format.
- Geometric data analysis to retain and excavate information depth.
Main Results:
- Soil environmental quality in the low mountain area (0-60 cm) was assessed as second grade.
- Soil environmental quality in hilly and plain areas was assessed as first grade.
- Key soil contaminants identified: exogenous Cadmium (Cd), endogenous Arsenic (As), and Mercury (Hg).
Conclusions:
- The equal intercept transformation radar chart effectively visualizes and analyzes soil environmental quality.
- Soil quality varies across different topographical areas within the Nanling grain base.
- Exogenous Cd is a consistent indicator of poor soil quality across all assessed areas.
