Home‐field advantage (HFA) in litter decomposition implies that litter decomposes faster in its ‘home’ habitat, i.e., where the litter originates, than in any other distant (i.e., ‘away’) environment. Soil fauna plays a key role in litter decomposition, while its contribution to HFA may vary greatly. To elucidate how soil fauna interacts with litter quality to influence the occurrence and variability in HFA, leaf litter reciprocal transplant experiments were conducted in the Wuyi Mountains at five different elevations. Naphthalene was used to inhibit soil faunal communities. We found that the magnitude and direction of HFA, and meso- and micro-faunal contributions to HFA varied inconsistently at different elevations. The non-linear direct effects of climate and the variation of soil faunal diversity seemingly led to variations in meso- and micro-faunal contributions to HFA at different elevations. Although HFA was independent of litter quality, meso- and micro-faunal contributions to HFA were significantly related to litter phosphorus. Larger meso- and micro-faunal contributions to decomposition in low leaf litter phosphorus and phosphorus limited habitats may result mainly from the important role of meso- and microfauna in making nutrient-poor soil substrates more accessible to the soil microbial community.

垃圾分解中的主场优势（HFA）意味着垃圾在其“家”栖息地（即垃圾的起源地）比在任何其他遥远（即“远离”）环境中分解得更快。土壤动物群在凋落物分解中起着关键作用，而其对 HFA 的贡献可能差异很大。为了阐明土壤动物群如何与凋落物质量相互作用以影响 HFA 的发生和变异，在武夷山的五个不同海拔处进行了凋落物相互移植实验。萘被用来抑制土壤动物群落。我们发现 HFA 的大小和方向，以及中观和微型动物群对 HFA 的贡献在不同海拔高度变化不一致。气候的非线性直接影响和土壤动物多样性的变化似乎导致了不同海拔的中小型和微型动物对 HFA 的贡献发生了变化。尽管 HFA 与凋落物质量无关，但中小型和微型动物群对 HFA 的贡献与凋落物磷显着相关。在低落叶凋落物磷和磷有限的栖息地对分解的更大中观和微型动物群的贡献可能主要是由于中观和微型动物群在使土壤微生物群落更容易获得营养贫乏的土壤基质方面的重要作用。