Nitrate leaching, Nitrogen thresholds, Machine learning, SHAP analysis, Dominant drivers
nitrogen utilization, Solanum lycopersicum L., root exudates, Rhizosphere microbial community
Nitrogen utilization, Solanum lycopersicum L., root exudates, rhizosphere microbial community
Co-invasion process, Nitrogen use strategy, Rhizosphere microbiota, Functional genes, Metabolite
Keywords: Nitrate leaching, Machine learning (ML), Causal effect, Eastern China, Agricultural management, Sensitivity analysis