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对华南 5种人工林凋落物量、凋落物养分及绿叶养分含量的测定结果表明 ,各种人工林凋落物量大小依次为 :马占相思 (11.1t·hm-2 ) >湿地松 (7.3t·hm-2 ) >荷木 (6 .5t·hm-2 ) >大叶相思 (4.8t·hm-2 ) >柠檬桉(2 .6t·hm-2 ) .马占相思通过落叶回归土壤的养分量高于其它类型 .5种人工林均通过养分转移机制 ,大量从枯老叶中转移N、P、K养分 ,其中马占相思转移的养分量最大 ,营养转移的季节性差别较大 .各种人工林对其它元素的转移现象不确定 .
The results of litter quantity, litter nutrient and green leaf nutrient contents in five kinds of plantations in South China showed that the litter size of various plantations was: Acacia mangium (11.1 t · hm-2)> Slash pine (7.3 t · hm -2>> 6.5t · hm-2> 4.8t · hm-2> 2.25t · hm-2 of eucalyptus urophylla Higher than the other types. All of the five kinds of plantations transferred N, P, and K nutrients from the old leaves through a mechanism of nutrient transfer. Among them, Acacia mangium transferred the largest amount of nutrients and the seasonal variation of nutrient transfer was relatively large. Plantation on the other elements of the transfer of uncertainty.