Fig 1.
Secondary succession model of an ecosystem.
Fig 2.
Test materials.
Fig 3.
Test process (the black numbers in the figure represent the test numbers corresponding to Table 1).
Table 1.
Red bed composite polymer compositions.
Fig 4.
Test equipment.
Fig 5.
Changes in water and soil characteristics with different initial water contents w0 over experimental time t (a) and comparison at the beginning and ending of seedling stage (b).
Fig 6.
Change in O2 and CO2 content c over time t under different initial water contents w0.
Fig 7.
Comparisons of the germination number n (a) and plant height h (b) of pigeon pea.
Table 2.
Differences in water, soil, air, and plant of red bed composite polymers with different proportions during the seedling stage.
Fig 8.
Water‒soil mutual feedback trend.
Fig 9.
Water‒plant and water‒air mutual feedback trends.
Fig 10.
Soil‒plant mutual feedback trend.
Fig 11.
Water‒soil-air‒plant mutual feedback trends with red bed composite polymer addition.
Fig 12.
Water‒soil-air‒plant mutual feedback mechanism with red bed composite polymer addition.