Water–Nitrogen–Biochar Management Enhances Sustainable Greenhouse Tomato Production Under Future Climates

O emissions. Among the three climate scenarios, SSP1-2.6 produced the greatest cobenefits, with yield increasing by 4.16%, SOC rising by 0.73%, and global warming potential decreasing by 18.6%. The optimal W-N-B management strategies were identified as W1N3B3 under SSP1-2.6, W2N2B2 under SSP2-4.5, and W2N3B3 under SSP5-8.5. These findings provide scientific support for developing high-yield and low-carbon greenhouse agriculture in arid regions of Northwest China.