The influence of substrate quality and stream size on wood decomposition dynamics
The influence of substrate quality and stream size on wood decomposition dynamics
复制标题
基质质量和水流尺寸对木材分解动力学的影响
DOI：
10.1007/bf00385224
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发表时间：
1983
期刊：
影响因子：
2.7
通讯作者：
K. N. Eshleman
中科院分区：
文献类型：
--
作者：
J. Melillo;R. Naiman;J. Aber;K. N. Eshleman
在加拿大魁北克省东部，木质材料在一级河流中的腐烂速度比在较大河流中的速度更快。一级流中的桤木木片的年质量损失率 (k) 最高 (k=1.20)，而九级流中的黑云杉木片的年质量损失率最低 (k=0.04)。一级流中木质材料的腐烂率与其初始木质素与氮的比率成反比。在较大的溪流中，木质材料的腐烂率与其初始木质素浓度成反比。人们发现木质材料的初始木质素和氮含量与腐烂木材的氮动态之间存在许多可量化的关系。
Woody materials decayed more rapidly in a first order stream than in larger streams in eastern Quebec, Canada. The rate of annual mass loss (k) was highest (k=1.20) for alder wood chips in a first order stream and lowest (k=0.04) for black spruce wood chips in a ninth order stream. Decay rates for woody materials in a first order stream were inversely related to their initial lignin to nitrogen ratios. In larger streams, decay rates of woody materials were inversely related to their initial lignin concentrations. A number of quantifiable relationships were found to exist between the initial lignin and nitrogen contents of woody materials and the nitrogen dynamics of decaying wood.