Table 1.
Basic physicochemical properties of rhizosphere soils (0–60 cm depth) of different treatments.
Table 2.
Total irrigation amount (m3) and average soil water content (%) with rhizosphere zones (0–60 cm depth) during the whole growth period of tomato plants for different treatments.
Table 3.
Changes in average BD, PD, and TP of rhizosphere soil (0–60 cm) under different treatments before and after the experiment.
Fig 1.
Changes in soil aggregate-related indexes before and after the experiment
(a) >0.25 mm particle size aggregate content; (b) MWD of soil aggregates; (c) GMD of soil aggregates; (d) Distribution ratio of aggregates with different particle sizes).
Fig 2.
Relationship between soil three phases and ideal points in different treatments before and after the experiment.
Table 4.
Changes in soil three-phase structure distance (STPSD) and generalized soil structure index (GSSI) before and after the experiment.
Fig 3.
Changes in root morphology indexes and root dry weight of different treatments in November 2022 (First planting).
Fig 4.
Changes in root morphology indexes and root dry weight of different treatments in September 2023 (Second planting).
Fig 5.
Thermal map of correlation between tomato root morphology and soil structure index.
Note: MR0.25 is the mass fraction of soil macro aggregates, MWD is the mean weight diameter, GMD is the geometric mean diameter, BD is the average bulk density of the soil, PD is the soil particle density, TP is the total porosity of the soil, XS is the soil solid phase volume fraction, XL is the soil liquid phase volume fraction, XG is the soil gaseous phase volume fraction, STPSD is the soil three-phase structure distance, GSSI is the generalized soil structure index, RL is the root length, RS is the root surface area, RD is the root diameter, RV is the root volume, RDW is the root dry weight, θr is the average soil moisture content within 0-60 cm depth during the whole growth season.
Table 5.
Path analysis of soil three-phase structure distances (STPSD).