Melaleuca alternifolia (Maiden & Betche) Cheel Residues Affect the Biomass and Soil Quality of Plantation

Long-term unreasonable management has led to the continuous decline of soil quality in Melaleuca alternifolia planting areas southern China, and there is no effective way improve its at present. In this study, residues tea tree oil extraction were returned forest explore influence on quality. Therefore, four test groups (RT, tiled; RS, stacked; RDT, decomposed RDS, stacked) one control group (CK, nothing was changed) designed. We used one-way ANOVA Pearson correlation analysis detect 22 physical, chemical, biological indicators soil, then minimum data set (MDS) principal component (PCA) evaluate The results show that compared with CK, BD pH decreases, while CP, TTP, SOM, AN, NN, AP, AK, CEC, MBC, MBN, MBP, catalase, urease, sucrase, ACP increase or strengthen different degrees, biomass increases by 5.3%~12.8%. indexes (SQI) are RDT (0.616) > RT (0.546) RDS (0.525) RS (0.452) CK (0.291). Significant between SQI indicates have high significance for red region China. These could quality, among groups. This study provides a new path plantation.