杨树主要营养元素内循环及外循环研究Ⅱ.落叶前后养分在植株体内外的迁移和循环
沈善敏, 宇万太, 张璐, 廉鸿志
Internal and external nutrient cyclings of poplar tree Ⅱ. Transferring and cycling of nutrients in and out of the tree before and after leaf fallen
Shen Shanmin, Yu Wantai, Zhang Lu, Lian Hongzhi
应用生态学报
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1993, (1): 27
-31
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