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研究了１１种固氮和非固氮树种凋落物分解及可利用态Ｎ的释放．结果表明，固氮树木凋落物中Ｎ的生物分解系数、落叶分解过程中干重的损失率及有效态氮的释放分别比非固氮树种高出１．３、１．５和８．２倍．
The litter decomposition and available N release of 11 kinds of nitrogen-fixing and non-nitrogen-fixing species were studied. The results showed that the biodegradation coefficient of N, the loss rate of dry weight during deciduous decomposition and the release of available nitrogen were respectively 1.3, 1.5 and 8.2 times higher than those of non-nitrogen-fixing species.