Soil Aggregates Are Governed by Spacing Configurations in Alfalfa-Jujube Tree Intercropping Systems

Soil aggregates play an important role in affecting the structural stability of soil, and it is to understand relationship between soil aggregate crop yield herbage-fruit tree intercropping systems. In this study, we determined optimal spacing configurations for improving while increasing yields alfalfa-jujube The treatments included three patterns, i.e., distances alfalfa jujube at 0.5 m (IP0.5m), 1 (IP1m), 1.45 (IP1.45m), along with monoculture (CKAL) (CKJU). results showed that IP0.5m, IP1m, IP1.45m, CKJU effectively improved structure compared CKAL. IP1m significantly increased amounts macro-aggregates (8.2%), mechanical properties among other treatments, which was partly attributable mean weight diameter (13.6%) decreased destruction rate water-stable (2.9%). principal component analysis had a positive effect on PC1. one-meter jujube-to-alfalfa optimized (8.3%); thus, can be considered most suitable configuration growing plantations.