Processing of confined and naturally entrained leaf litter in a woodland stream ecosystem1

Processing of confined and naturally entrained leaf litter in a woodland stream ecosystem1
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林地溪流生态系统中受限和自然夹带的落叶层的处理1

DOI：
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
R. Mattingly
R. Mattingly
中科院分区：
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文献类型：
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作者：
K. Cummins;George L. Spengler;G. Ward;Robert M. Speaker;R. Ovink;D. Mahan;R. Mattingly

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流社区处理率之间的比较自然夹带落叶和树叶包或1毫米网眼袋表明，包作为一个合适的模拟处理暴露的网站（浅滩），而袋没有。在浅滩，袋中的叶子被处理的速率特征的凋落物在沉积区（池和凹室）。一个长度-重量回归方法评估的微生境相关的处理率在流社区的范围出现合适的。叶凋落物氮水平和切碎机增加的处理率反映了微生物调理。碎纸机响应高品质的木材（Tilia americana）叶增加他们的密度，而不是每个人的增长。
A comparison between stream community processing rates of naturally entrained leaf litter and leaves in packs or 1 mm-mesh bags demonstrated that packs served as a suitable analogue of processing in exposed sites (riffles) whereas bags did not. In riffles, leaves in bags were processed at rates characteristic of litter in depositional zones (pools and alcoves). A length-weight regression method for evaluating the range of microhabitat-related processing rates in stream communities appears suitable. Leaf litter nitrogen levels and increased processing rates by shredders reflected microbial conditioning. Shredders responded to high quality basswood (Tilia americana) leaves by increasing their density rather than growth per individual.