Table 1. Overview of the mineral elements and stable isotopes of A. sinensis from Linxia, Gannan and Dingxi.
| Range | Median | Mean | SE | std.dev | coef.var | |
|---|---|---|---|---|---|---|
| K(mg/kg) | 2806.75–8234.19 | 5958.66 | 5639.95 | 311.94 | 1559.71 | 0.28 |
| Mg(mg/kg) | 423.82–1191.03 | 748.98 | 751.88 | 34.34 | 171.69 | 0.23 |
| Zn(mg/kg) | 3.41–7.70 | 5.06 | 5.32 | 0.22 | 1.12 | 0.21 |
| Cu(mg/kg) | 1.02–2.55 | 1.67 | 1.74 | 0.08 | 0.39 | 0.22 |
| Ca(mg/kg) | 511.78–1333.02 | 889.09 | 869.37 | 34.7 | 173.52 | 0.2 |
| Mn(mg/kg) | 3.50–7.86 | 5.18 | 5.27 | 0.22 | 1.12 | 0.21 |
| Cr(mg/kg) | 0.50–2.73 | 0.9 | 1.02 | 0.11 | 0.57 | 0.56 |
| Al(mg/kg) | 66.38–287.77 | 106.49 | 119.13 | 10.6 | 52.99 | 0.44 |
| δ13C(‰) | −24.83–−22.75 | −23.94 | −23.79 | 0.1 | 0.52 | −0.02 |
| δ15N(‰) | −2.08–5.57 | 1.91 | 2.13 | 0.39 | 1.95 | 0.91 |
| δ18O(‰) | 23.44–27.10 | 24.77 | 25.07 | 0.22 | 1.08 | 0.04 |
Notes.
- Range
- variable range
- median
- median values from the three regions
- mean
- average values from the three regions
- SE
- standard error
- std.dev
- standard deviation
- coef. Var
- coefficient of variation
The coefficient of variation (CV) measures the degree of variation within an element (less than 0.2, has a low degree of variation; between 0.2 and 0.3, a medium variation; greater than 0.35, highly variable).