·2,447,543篇论文数据，部分数据来源于NoteExpress
Faster leaf decomposition and biomass growth have created a much more fertile soil on once sandy land, which was not always suitable for cultivation.
杨树较快的树叶分解速度和生物量增长可大大提高曾经是不宜耕作的沙质土的土壤肥力。
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