黑钙土样地选择在大田，草甸土选择在羊草自然保护区内，草甸碱土选择在退化草地碱斑部位。
The Black Calcium soil plots were conducted in farmland, the meadow soil in the Natural Reserves, and the meadow alkali soil in the degraded grassland with saline bowls.
典型土壤选择草甸土、黑钙土、草甸碱土三种。
Selected soils are meadow soil, Black Calcium soil, and meadow alkali soil, respectively.
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