Breakdown of plant residues with contrasting chemical compositions under humid tropical conditions: Effects of earthworms and millipedes
Breakdown of plant residues with contrasting chemical compositions under humid tropical conditions: Effects of earthworms and millipedes
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DOI：
10.1016/0038-0717(94)00182-z
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发表时间：
1995-03
影响因子：
9.7
通讯作者：
G. Tian;L. Brussaard;B. Kang
中科院分区：
文献类型：
--
作者：
G. Tian;L. Brussaard;B. Kang
在潮湿的热带环境下，研究了热带蚯蚓(Eudrilus Eugeniae)和千足虫(Spirostreptidae)对植物残留物[Acioa(现为Dactyladia)barteri、Gliricidia Sepium和Leucaena Leucocephala修剪、玉米(Zea Mays)秸秆和水稻(Oryza Sativa)秸秆]在潮湿热带环境中分解的影响。添加蚯蚓显著提高了玉米秸秆的腐解率。添加千足虫显著增加了玉米秸秆和稻草的分解。与单一的动物群相比，蚯蚓和千足虫的联合添加通常会导致更大的植物残留物分解。在暴露的10周内，蚯蚓和千足虫平均占所有植物残留物的10.4%和28.4%。千足虫和蚯蚓对低质量(高C/N比、木质素和多酚含量)植物残体的分解作用大于对高质量植物残体的降解。因此，植物残体的动物强化分解对土壤养分供应的影响因残体质量不同而不同。
The effects of tropical earthworms (Eudrilus eugeniae) and millipedes (Spirostreptidae) on the breakdown of plant residues [Acioa (presently, Dactyladenia) barteri, Gliricidia sepium and Leucaena leucocephala prunings, maize (Zea mays) stover and rice (Oryza sativa) straw], with contrating chemical compositions, were studied in the field under humid tropical circumstances. Addition of earthworms significantly increased the breakdown of maize stover. Addition of millipedes significantly increased the breakdown of maize stover and rice straw. Combined addition of earthworms and millipedes generally resulted in greater plant residue breakdown, compared to that of a single group of fauna. During 10 weeks of exposure, earthworms and millipedes, on average, accounted for the breakdown of all plant residues by 10.4 and 28.4%, respectively. Millipedes and earthworms contributed more to the breakdown of plant residues with low quality (high C-to-N ratio, lignin and polyphenol contents) than to the degradation of those with high quality. It is concluded that fauna-enhanced breakdown of plant residues will have different effects on soil nutrient supply, depending on residue quality.