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杉木—油桐—仙人草复合经营系统土壤微生物总数及各生理类群的数量比杉木纯林均有明显的增加,土壤有机质、全N及土壤结构性状亦有明显的改善,这与仙人草宿根及油桐根系穿插挤压、根系枯死后残留土内及油桐落叶回归林地、林地精细耕作有关。
The total number of soil microorganisms and the number of each physiological group in the system of Chinese fir-Tung Oil-prickly ash mixed operation increased obviously than that of the pure plantation of Cunninghamia lanceolata, and the soil organic matter, total N and soil structural traits also remarkably improved. Tung oil roots interspersed with extrusion, the root after the dead soil and tung oil leaves return to woodland, woodland fine farming related.